Vignan_First_Year_Practice_Part_5_2023

1. Dear First Year students of Vignan,
2. The Practice link Five (I_Can_do_Coding_part_5) will be conducted on 13th Jan 2023 to 16rd Jan 2023.
3. You are given 14 questions and 100 hours to complete them. 
4. Questions will be on Patterns. you can attempt it only in C language.
5.  When you the Start coding, please give your Roll No instead of Name.
6. Please participate in the following

 Link: https://assessment.hackerearth.com/challenges/college/I_Can_do_Coding_5/

Vignan_First_Year_Practice_Part_5_2023

netaji gandi Friday, January 13, 2023

Vignan_First_Year_Practice_Part_4_2023

1. Dear First Year students of Vignan,
2. The Practice link Four (I_Can_do_Coding_part_4) will be conducted on 10th Jan 2023 to 13rd Jan 2023.
3. You are given 13 questions and 100 hours to complete them. 
4. Questions will be on Loops. you can attempt it only in C language.
5.  When you the Start coding, please give your Roll No instead of Name.
6. Please participate in the following 

Link: I_Can_Do_Coding_4 | Programming challenges in January, 2023 on HackerEarth

Vignan_First_Year_Practice_Part_4_2023

netaji gandi Tuesday, January 10, 2023

Vignan_First_Year_Practice_Part_3_2023

 

1. The Practice link Three (I_Can_do_Coding_part_3) will be conducted on 6th Jan 2023 to 10rd Jan 2023.
2. You are given 15 questions and 100 hours to complete them. 
3. Questions will be on Conditional statements. you can attempt it only in C language.
4.  When you the Start coding, please give your Roll No instead of Name.
5. Please participate in the following

 Link: I_Can_Do_Coding_Part_3 (hackerearth.com)

Vignan_First_Year_Practice_Part_3_2023

netaji gandi

Vignan_First_Year_Practice_Part_2

1. Dear First Year students of Vignan,
2. The Practice link TWO (I_Can_do_Coding_part_2) will be conducted on 4th Jan 2023 to 8rd Jan 2023.
3. You are given 10 questions and 100 hours to complete them. 
4. Questions will be on basic coding. you can attempt it only in C language.
5.  When you the Start coding, please give your Roll No instead of Name.
6. Please participate in the following Link: 

                            I_Can_Do_Coding_Part_2 (hackerearth.com)

Vignan_First_Year_Practice_Part_2

netaji gandi Wednesday, January 4, 2023

R20 & R19 OBJECT ORIENTED PROGRAMMING THROUGH C++

R20 OBJECT ORIENTED PROGRAMMING THROUGH C++- Previous Question papers

Regulation	Month & Year	Download File
R20	July -2022-Supplementary	1 Sets
R20	Feb -2022-Regular	1 Set
R19	Sep -2021-Supplementary	1 Set
R19	Mar -2021-Regular	4 Sets

R20 & R19 OBJECT ORIENTED PROGRAMMING THROUGH C++

netaji gandi Tuesday, January 3, 2023

PPSC EXERCISE-16

 

EXERCISE-16

1. Write a program in C to append multiple lines at the end of a text file.
SOURCE CODE:
#include<stdio.h>
int main() {
FILE *fp;
char ch;
fp = fopen("Sample.txt", "w");
printf("Enter the text press ctrl+z for end of file: \n");
while ((ch=getchar())!=EOF) {
putc(ch,fp);
}
fclose(fp);
fp = fopen("Sample.txt", "a");
printf("Enter the text to append to a file press ctrl+z for end of file: \n");
while ((ch=getchar())!=EOF) {
putc(ch,fp);
}
fclose(fp);
fp = fopen("Sample.txt", "r");
printf("File content after appending : \n");
while ((ch=fgetc(fp))!=EOF) {
putchar(ch);
}
printf("\n");
fclose(fp);
return 0;
}
OUTPUT:
Enter the text press ctrl+z for end of file:
Hello
^Z
Enter the text to append to a file press ctrl+z for end of file:
Welcome
here you learn file concepts.
^Z
File content after appending :
Hello
Welcome
here you learn file concepts.

2. Write a program in C to copy a file in another name.
SOURCE CODE:
#include<stdio.h>
int main() {
FILE *fp1, *fp2;
char ch;
fp1 = fopen("Sample.txt", "w");
printf("Enter the text press ctrl+z for end of file: \n");
while ((ch=getchar())!=EOF) {
putc(ch,fp1);
}
fclose(fp1);
fp1 = fopen("Sample.txt", "r");
fp2 = fopen("CopiedFile.txt", "w");
    while((ch=fgetc(fp1))!=EOF){
        putc(ch,fp2);
    }
    putc(ch,fp2);
    fclose(fp1);
    fclose(fp2);
    fp2 = fopen("CopiedFile.txt", "r");
    printf("Copied text is : \n");
    while((ch=fgetc(fp2))!=EOF){
        putchar(ch);
    }
    fclose(fp2);
    printf("\n");
    return 0;
}
OUTPUT:
Enter the text press ctrl+z for end of file:
welcome
learn file concepts
^Z
Copied text is :
welcome
learn file concepts

3. Write a program in C to remove a file from the disk.
SOURCE CODE:
#include<stdio.h>
int main() {
FILE *fp;
char ch, fileName[30]="Sample.txt";
int status;
fp = fopen(fileName, "w");
printf("Enter the text press ctrl+z for end of file: \n");
while ((ch=getchar())!=EOF) {
putc(ch,fp);
}
fclose(fp);
    fp = fopen(fileName,"r");
    if(fp==NULL){
        printf("File doesn't exists.\n");
        return 0;
    }
    else{
        printf("File exists.\n");
    }
    fclose(fp);
    status = remove(fileName);
    if(status==0)
        printf("%s file is deleted.",fileName);
    else
        printf("Unable to delete %s file.",fileName);
    return 0;
}
OUTPUT:
Enter the text press ctrl+z for end of file:
hello
^Z
File exists.
Sample.txt file is deleted.

PPSC EXERCISE-16

netaji gandi Monday, January 2, 2023

PPSC EXERCISE-15

 

EXERCISE-15

1. Write a program in C to check whether a number is a prime number or not using the function.
SOURCE CODE:
#include<stdio.h>
void isPrime(int);
int main(){
    int n;
    printf("Enter number : ");
    scanf("%d",&n);
    isPrime(n);
    return 0;
}
void isPrime(int n){
    int i, c=0;
    for(i=1;i<=n/2;i++){
        if(n%i==0)
            c++;
    }
    if(c==1)
        printf("Given number %d is a prime number.\n",n);
    else
        printf("Given number %d is not a prime number.\n",n);
}
OUTPUT-1:
Enter number : 5
Given number 5 is a prime number.

OUTPUT-2:
Enter number : 25
Given number 25 is not a prime number.

2. Write a program in C to get the largest element of an array using the function.
SOURCE CODE:
#include <stdio.h>
int large(int[], int);
int main() {
int a[10], i, n;
printf("Enter number of elements to be insert : ");
scanf("%d", &n);
printf("Enter %d elements : ",n);
for (i = 0; i < n; i++)
scanf("%d", &a[i]);
printf("The largest element of the array = %d\n", large(a, n));
return 0;
}
int large(int ary[], int n){
int i, max;
max=ary[0];
for(i=1;i<n;i++){
if(ary[i]>max)
max=ary[i];
}
return max;
}
OUTPUT:
Enter number of elements to be insert : 4
Enter 4 elements : 8 3 4 2
The largest element of the array = 8

PPSC EXERCISE-15

netaji gandi

PPSC EXERCISE-14

 

EXERCISE-14

1. Write a C program to find sum of n elements entered by user. To perform this program, allocate memory dynamically using calloc( ) function. Understand the difference between the above two programs.
SOURCE CODE:
#include<stdio.h>
#include<stdlib.h>
int main(){
    int n, *eles, i, sum=0;
    printf("Enter number of elements : ");
    scanf("%d",&n);
    eles = (int*)calloc(n,sizeof(int));
    printf("Enter %d elements : ",n);
    for(i=0;i<n;i++)
        scanf("%d",&eles[i]);
    for(i=0;i<n;i++)
        sum = sum + eles[i];
    printf("Sum of all elements is : %d\n",sum);
    return 0;
}
OUTPUT:
Enter number of elements : 4
Enter 4 elements : 5 4 3 2
Sum of all elements is : 14

2. Write a program in C to convert decimal number to binary number using the function.
SOURCE CODE:
#include <stdio.h>
long decimalToBinary(int);
int main() {
int d;
long int b;
printf("Enter a positive decimal number : ");
scanf("%d", &d);
b=decimalToBinary(d);
printf("The binary number of decimal %d is : %ld\n", d, b);
return 0;
}
long decimalToBinary(int d){
long int bn=0, revbn=0;
int c=0;
while(d>0){
revbn=(revbn*10)+(d%2);
d=d/2;
c++;
}
while(c>0){
bn=(bn*10)+(revbn%2);
revbn=revbn/10;
c--;
}
return bn;
}
OUTPUT:
Enter a positive decimal number : 36
The binary number of decimal 36 is : 100100

PPSC EXERCISE-14

netaji gandi

PPSC EXERCISE-13

 

EXERCISE-13

1. Write a program in C to show how a function returning pointer.
SOURCE CODE:
#include<stdio.h>
int* findLarger(int*, int*);
int main() {
int num1, num2;
int *result;
printf("Enter two numbers : ");
scanf("%d %d", &num1, &num2);
result = findLarger(&num1, &num2);
printf("Largest number : %d\n" , *result);
return 0;
}

int* findLarger(int *num1, int *num2){
return *num1>*num2?num1:num2;
}
OUTPUT:
Enter two numbers : 4 6
Largest number : 6

2. Write a C program to find sum of n elements entered by user. To perform this program, allocate memory dynamically using malloc( ) function.
SOURCE CODE:
#include<stdio.h>
#include<stdlib.h>
int main(){
    int n, *eles, i, sum=0;
    printf("Enter number of elements : ");
    scanf("%d",&n);
    eles = (int*)malloc(sizeof(int)*n);
    printf("Enter %d elements : ",n);
    for(i=0;i<n;i++)
        scanf("%d",&eles[i]);
    for(i=0;i<n;i++)
        sum = sum + eles[i];
    printf("Sum of all elements is : %d\n",sum);
    return 0;
}
OUTPUT:
Enter number of elements : 4
Enter 4 elements : 2 6 1 5
Sum of all elements is : 14

PPSC EXERCISE-13

netaji gandi

PPSC EXERCISE-12

 

EXERCISE-12

1. Write a program in C to swap elements using call by reference.
SOURCE CODE:
#include<stdio.h>
int main() {
int num1, num2;
printf("Enter two integer values : ");
scanf("%d %d", &num1, &num2);
printf("Before swapping in main : num1 = %d \t num2 = %d\n", num1, num2);
swap(&num1, &num2);
printf("After swapping in main : num1 = %d \t num2 = %d\n", num1, num2);
return 0;
}

void swap(int *num1, int *num2){
    int temp;
    temp = *num1;
    *num1 = *num2;
    *num2 = temp;
    printf("After swapping in swap : *num1 = %d \t *num2 = %d\n", *num1, *num2);
}
OUTPUT:
Enter two integer values : 5 6
Before swapping in main : num1 = 5       num2 = 6
After swapping in swap : *num1 = 6       *num2 = 5
After swapping in main : num1 = 6        num2 = 5

2. Write a program in C to count the number of vowels and consonants in a string using a pointer.
SOURCE CODE:
#include<stdio.h>
int main(){
char str[100], *ch;
int i, v=0, c=0;
printf("Enter a string: ");
scanf("%s",str);
ch = str;
while(*ch!='\0'){
if(*ch=='a' || *ch=='e' || *ch=='i' || *ch=='o' || *ch=='u' || *ch=='A' || *ch=='E' || *ch=='I' || *ch=='O' || *ch=='U'){
v++;
}
else{
c++;
}
ch++;
}
printf("Total number of vowels : %d, consonants : %d\n",v,c);
return 0;
}
OUTPUT:
Enter a string: welcometocprogramming
Total number of vowels : 7, consonants : 14

PPSC EXERCISE-12

netaji gandi

PPSC EXERCISE-11

 

EXERCISE-11

1. Write a program in C to add numbers using call by reference.
SOURCE CODE:
#include<stdio.h>
#include<stdlib.h>
int main(){
    int n, *eles, i, sum=0;
    printf("Enter number of elements : ");
    scanf("%d",&n);
    eles = (int*)malloc(sizeof(int)*n);
    printf("Enter %d elements : ",n);
    for(i=0;i<n;i++)
        scanf("%d",&eles[i]);
    sum = add(eles, n);
    printf("Sum of all elements is : %d\n",sum);
    return 0;
}
int add(int *eles, int n){
    int i, sum=0;
    for(i=0;i<n;i++)
        sum = sum + eles[i];
    return sum;
}
OUTPUT:
Enter number of elements : 4
Enter 4 elements : 2 6 1 5
Sum of all elements is : 14

2. Write a program in C to find the largest element using Dynamic Memory Allocation.
SOURCE CODE:
#include<stdio.h>
#include<stdlib.h>
int main(){
    int n, *eles, i, largest;
    printf("Enter number of elements : ");
    scanf("%d",&n);
    eles = (int*)malloc(sizeof(int)*n);
    printf("Enter %d elements : ",n);
    for(i=0;i<n;i++)
        scanf("%d",&eles[i]);
    largest = eles[0];
    for(i=0;i<n;i++){
        if(largest<eles[i])
            largest = eles[i];
    }
    printf("Largest element is : %d\n",largest);
    return 0;
}
OUTPUT:
Enter number of elements : 5
Enter 5 elements : 5 4 3 9 7
Largest element is : 9

PPSC EXERCISE-11

netaji gandi

PPSC EXERCISE-10

 

EXERCISE-10

1. Write a program in C to demonstrate the use of & (address of) and *(value at address) operator.
SOURCE CODE:
#include<stdio.h>
int main() {
int num1, *p1;
float num2, *p2;
char ch1, *p3;
printf("Enter int, float and char values : ");
scanf("%d %f %c",&num1, &num2, &ch1 );
p1=&num1;
p2=&num2;
p3=&ch1;
printf("Given int value : %d\n", *p1);
printf("Given float value : %f\n", *p2);
printf("Given char value : %c\n", *p3);
    return 0;
}
OUTPUT:
Enter int, float and char values : 97 3.24 I
Given int value : 97
Given float value : 3.240000
Given char value : I

2. Write a program in C to add two numbers using pointers.
SOURCE CODE:
#include<stdio.h>
#include<stdlib.h>
int main(){
    int *num1, *num2;
    num1 = (int*)malloc(sizeof(int));
    num2 = (int*)malloc(sizeof(int));
    printf("Enter two numbers : ");
    scanf("%d%d",num1,num2);
    printf("Sum of %d and %d is %d\n",*num1,*num2,*num1+*num2);
    return 0;
}
OUTPUT:
Enter two numbers : 5 9
Sum of 5 and 9 is 14

PPSC EXERCISE-10

netaji gandi

PPSC EXERCISE-9

 

EXERCISE-9

1. Write a C Program to Store Information Using Structures with Dynamically Memory Allocation
SOURCE CODE:
#include<stdio.h>
#include<stdlib.h>

struct course{
 char subject[30];
 int marks;
};

int main(){
    struct course *ptr;
int i, noOfRecords;
    printf("Enter number of records : ");
scanf("%d", &noOfRecords);
ptr = (struct course*)malloc(sizeof(struct course)*noOfRecords);
for(i=0;i<noOfRecords;i++){
printf("Enter the subject name and marks : ");
scanf("%s%d",ptr[i].subject,&ptr[i].marks);
}
printf("Subject\tMarks\n");
for(i=0;i<noOfRecords;i++){
printf("%s\t%d\n",ptr[i].subject,ptr[i].marks);
}
}
OUTPUT:
Enter number of records : 2
Enter the subject name and marks : ENG 79
Enter the subject name and marks : CP 65
Subject Marks
ENG     79
CP      65

2. Write a program in C to demonstrate how to handle the pointers in the program.
SOURCE CODE:
#include<stdio.h>
int main(){
int a = 9, *intptr;
float pi = 3.14, *floatptr;
char ch = 'I', *charptr;
intptr = &a;
floatptr = &pi;
charptr = &ch;
printf("Size of an int ptr = %d\n",sizeof(intptr));
printf("Size of a float ptr = %d\n",sizeof(floatptr));
printf("Size of a char ptr = %d\n",sizeof(charptr));
printf("Size of an int type = %d\n",sizeof(*intptr));
printf("Size of a float type = %d\n",sizeof(*floatptr));
printf("Size of a char type = %d\n",sizeof(*charptr));
return 0;
}
OUTPUT:
Size of an int ptr = 4
Size of a float ptr = 4
Size of a char ptr = 4
Size of an int type = 4
Size of a float type = 4
Size of a char type = 1

PPSC EXERCISE-9

netaji gandi

PPSC EXERCISE-8

 

EXERCISE-8

1. Write a program in C to compare two strings without using string library functions.
SOURCE CODE:
#include<stdio.h>
int main(){
    char str1[50],str2[50];
    int i;
    printf("Enter string1:\n");
    gets(str1);
    printf("Enter string2:\n");
    gets(str2);
    for(i=0;str1[i]!='\0' || str2[i]!='\0';i++)
        if(str1[i]!=str2[i])
            break;
    if(str1[i]-str2[i]==0)
        printf("Both strings are equal.");
    else if(str1[i]-str2[i]>0)
        printf("String1 is greater than String2.");
    else
        printf("String1 is lesser than String2.");
    return 0;
}
OUTPUT-1:
Enter string1:
there
Enter string2:
there
Both strings are equal.

OUTPUT-2:
Enter string1:
their
Enter string2:
there
String1 is lesser than String2.

OUTPUT-3:
Enter string1:
there
Enter string2:
their
String1 is greater than String2.

2. Write a program in C to copy one string to another string.
SOURCE CODE:
#include<stdio.h>
int main(){
    char str1[30],str2[30];
    int i;
    printf("Enter string:\n");
    gets(str1);
    for(i=0;str1[i]!='\0';i++)
        str2[i]=str1[i];
    str2[i]='\0';
    printf("Copied string is:\n");
    puts(str2);
}
OUTPUT:
Enter string:
hello world
Copied string is:
hello world

PPSC EXERCISE-8

netaji gandi

PPSC EXERCISE-7

 

EXERCISE-7

1. Write a program in C to search an element in a row wise and column wise sorted matrix.
SOURCE CODE:
#include<stdio.h>
int main(){
    int mtrx[10][10], r, c, i, j, ele;
    printf("Enter matrix size:");
    scanf("%d%d",&r,&c);
    printf("Enter %d X %d matrix elements:\n",r,c);
    for(i=0;i<r;i++)
        for(j=0;j<c;j++)
            scanf("%d",&mtrx[i][j]);
    printf("Enter search element:");
    scanf("%d",&ele);
    for(i=0;i<r;i++){
        for(j=0;j<c;j++){
            if(mtrx[i][j]==ele)
                break;
        }
        if(j!=c)
            break;
    }
    if(i!=r && j!=c)
        printf("%d element is found at %d-row and %d-column.\n",ele,i,j);
    else
        printf("%d element is not found.\n",ele);
}

OUTPUT:

Enter matrix size:3 3

Enter 3 X 3 matrix elements:

1 2 3

4 5 6

7 8 9

Enter search element:5

5 element is found at 1-row and 1-column.

2. Write a program in C to print individual characters of string in reverse order.
SOURCE CODE:
#include<stdio.h>
#include<string.h>
int main(){
    char str[50];
    int i,len;
    printf("Enter string:\n");
    gets(str);
    len = strlen(str);
    printf("String in reverse order:\n");
    for(i=len-1;i>=0;i--)
        printf("%c",str[i]);
    return 0;
}
OUTPUT:
Enter string:
hello world
String in reverse order:
dlrow olleh

PPSC EXERCISE-7

netaji gandi

PPSC EXERCISE-6

 

EXERCISE-6

1. Write a program in C for multiplication of two square Matrices.
SOURCE CODE:
#include<stdio.h>
int main(){
    int mtrx1[20][20],mtrx2[20][20],mulmtrx[40][40],n1,n2,i,j,k;
    printf("Enter matrix sizes:");
    scanf("%d%d",&n1,&n2);
    if(n1==n2){
        printf("Enter first matrix elements\n");
        for(i=0;i<n1;i++)
            for(j=0;j<n1;j++)
                scanf("%d",&mtrx1[i][j]);
        printf("Enter second matrix elements\n");
        for(i=0;i<n2;i++)
            for(j=0;j<n2;j++)
                scanf("%d",&mtrx2[i][j]);
        for(i=0;i<n1;i++){
            for(j=0;j<n2;j++){
                mulmtrx[i][j]=0;
                for(k=0;k<n1;k++)
                    mulmtrx[i][j]=mulmtrx[i][j]+mtrx1[i][k]*mtrx2[k][j];
            }
        }
        printf("\nResult matrix is\n");
        for(i=0;i<n1;i++){
            for(j=0;j<n1;j++)
                printf("%d\t",mulmtrx[i][j]);
            printf("\n");
        }
    }
    else
        printf("Matrix multiplication is not possible");
    return 0;
}
OUTPUT-1:
Enter matrix sizes:3 3
Enter first matrix elements
1 2 3
4 5 6
7 8 9
Enter second matrix elements
9 8 7
6 5 4
3 2 1

Result matrix is
30      24      18
84      69      54
138     114     90

OUTPUT-2:
Enter matrix sizes:3 2
Matrix multiplication is not possible
2. Write a program in C to find transpose of a given matrix.
SOURCE CODE:
#include<stdio.h>
int main(){
    int mtrx[10][10],r,c,i,j,temp;
    printf("Enter matrix size:\n");
    scanf("%d %d",&r,&c);
    printf("Enter matrix elements:\n");
    for(i=0;i<r;i++)
        for(j=0;j<c;j++)
            scanf("%d",&mtrx[i][j]);
    if(r>=c){
    for(i=0;i<c;i++){
        for(j=0;j<r;j++){
            if(j>i){
                temp = mtrx[i][j];
                mtrx[i][j] = mtrx[j][i];
                mtrx[j][i] = temp;
            }
        }
    }
    }
    else{
    for(i=0;i<r;i++){
        for(j=0;j<c;j++){
            if(j>i){
                temp = mtrx[i][j];
                mtrx[i][j] = mtrx[j][i];
                mtrx[j][i] = temp;
            }
        }
    }
    }
    printf("Transpose of the given matrix is\n");
    for(i=0;i<c;i++){
        for(j=0;j<r;j++)
            printf("%d ",mtrx[i][j]);
        printf("\n");
    }
    return 0;
}
OUTPUT-1:
Enter matrix size:
2 3
Enter matrix elements:
1 2 3
4 5 6
Transpose of the given matrix is
1 4
2 5
3 6

OUTPUT-2:
Enter matrix size:
3 2
Enter matrix elements:
1 2
3 4
5 6
Transpose of the given matrix is
1 3 5
2 4 6

PPSC EXERCISE-6

netaji gandi

PPSC EXERCISE-5

 

EXERCISE-5

1. Write a program in C to print all unique elements in an array.
SOURCE CODE:

#include<stdio.h>
int main(){
    int a[20],n,i,j,k;
    printf("Enter array size:");
    scanf("%d",&n);
    printf("Enter array elements:\n");
    for(i=0;i<n;i++)
        scanf("%d",&a[i]);
    for(i=0;i<n;i++){
        for(j=i+1;j<n;j++){
            if(a[i]==a[j]){
                for(k=j;k<n-1;k++)
                    a[k]=a[k+1];
                n--;
                j--;
            }
        }
    }
    printf("\nUnique elements in array are:\n");
    for(i=0;i<n;i++)
        printf("%d\t",a[i]);
    return 0;
}

OUTPUT:

Enter array size:5
Enter array elements:
1 2 3 2 1

Unique elements in array are:
1       2       3

2. Write a program in C to separate odd and even integers in separate arrays.
SOURCE CODE:

#include<stdio.h>
int main(){
    int arr[30],evenArr[30],oddArr[30],i,j=0,k=0,ea=0,oa=0,n;
    printf("Enter array size:");
    scanf("%d",&n);
    printf("Enter %d elements:\n",n);
    for(i=0;i<n;i++)
        scanf("%d",&arr[i]);
    for(i=0;i<n;i++){
        if(arr[i]%2==0)
            evenArr[j++]=arr[i];
        else
            oddArr[k++]=arr[i];
    }
    printf("Even elements in the array:\n");
    for(i=0;i<j;i++)
        printf("%d\t",evenArr[i]);
    printf("\nOdd elements in the array:\n");
    for(i=0;i<k;i++)
        printf("%d\t",oddArr[i]);
    return 0;
}

OUTPUT:

Enter array size:5
Enter 5 elements:
10 25 30 35 55
Even elements in the array:
10      30
Odd elements in the array:
25      35      55

3. Write a program in C to sort elements of array in ascending order.
SOURCE CODE:

#include<stdio.h>
int main(){
    int arr[20],n,i,j,temp;
    printf("Enter array size:");
    scanf("%d",&n);
    printf("Enter %d elements:\n",n);
    for(i=0;i<n;i++)
        scanf("%d",&arr[i]);
    printf("Before sorting array elements are:\n");
    for(i=0;i<n;i++)
        printf("%d\t",arr[i]);
    for(i=0;i<n-1;i++){
        for(j=i+1;j<n;j++){
            if(arr[i]>arr[j]){
                temp=arr[i];
                arr[i]=arr[j];
                arr[j]=temp;
            }
        }
    }
    printf("\nAfter sorting array elements are:\n");
    for(i=0;i<n;i++)
        printf("%d\t",arr[i]);
    return 0;
}

OUTPUT:

Enter array size:5
Enter 5 elements:
3 4 2 5 1
Before sorting array elements are:
3       4       2       5       1
After sorting array elements are:
1       2       3       4       5

PPSC EXERCISE-5

netaji gandi

PPSC EXERCISE-4

 

EXERCISE-4

1. Write a program in C to display the n terms of even natural number and their sum.
SOURCE CODE:

#include<stdio.h>
int main(){
    int n,i=1,c=1,sum=0;
    printf("Enter number of terms : ");
    scanf("%d",&n);
    printf("Even natural numbers are : \n");
    while(c<=n){
        if(i%2==0){
            printf("%d ",i);
            sum=sum+i;
            c++;
        }
        i++;
    }
    printf("\nSum of even natural numbers is: %d\n",sum);
    return 0;
}

OUTPUT:

Enter number of terms : 5
Even natural numbers are :
2 4 6 8 10
Sum of even natural numbers is: 30

2. Write a program in C to display the n terms of harmonic series and their sum. 1 + 1/2 + 1/3 + 1/4 + 1/5 ... 1/n terms.
SOURCE CODE:

#include<stdio.h>
int main(){
    int n,i;
    float sum=0;
    printf("Enter range:");
    scanf("%d",&n);
    printf("Series is:\n");
    for(i=1;i<=n;i++){
        printf("1/%d",i);
        if(i<n)
            printf("+");
        sum = sum + (float)1/i;
    }
    printf("\nSum of series is: %f",sum);
    return 0;
}

OUTPUT:

Enter range:5
Series is:
1/1+1/2+1/3+1/4+1/5
Sum of series is: 2.283334

3. Write a C program to check whether a given number is an Armstrong number or not.
SOURCE CODE:

/*Program to check whether the given number is Armstrong number or not.*/
#include<stdio.h>
#include<math.h>
int main(){
    int n,temp,arm=0,c=0;
    printf("Enter number:");
    scanf("%d",&n);
    temp=n;
    while(temp>0){
        temp=temp/10;
        c++;
    }
    temp=n;
    while(temp>0){
        arm=arm+pow((temp%10),c);
        temp=temp/10;
    }
    if(n==arm)
        printf("Given number is Armstrong.");
    else
        printf("Given number is not Armstrong.");
    return 0;
}

OUTPUT-1:

Enter number:371
Given number is Armstrong.

OUTPUT-2:

Enter number:151
Given number is not Armstrong.

PPSC EXERCISE-4

netaji gandi

PPSC EXERCISE-3

 

EXERCISE-3

1. Write a C program to convert a string to a long integer.
SOURCE CODE:

#include<stdio.h>
#include<stdlib.h>
int main(){
    long int l;
    char str[30];
    printf("Enter a string:\n");
    scanf("%s",str);
    l=atol(str);
    printf("String to long integer is : %ld",l);
    return 0;
}

OUTPUT:

Enter a string:
123456789
String to long integer is : 123456789

2. Write a program in C which is a Menu-Driven Program to compute the area of the various geometrical shape.
SOURCE CODE:

#include<stdio.h>
#include<stdlib.h>
int main(){
float radius, length, width, base, height, area;
int choice;
do{
printf("1. Area of circle\n2. Area of rectangle\n3. Area of triangle\n4. Exit\n");
printf("Enter your choice : ");
scanf("%d",&choice);
switch(choice){
case 1:
printf("Enter radius : ");
scanf("%f",&radius);
area = 3.14 * radius * radius;
printf("Area of circle : %f\n",area);
break;
case 2:
printf("Enter length and width : ");
scanf("%f%f",&length,&width);
area = length * width;
printf("Area of rectangle : %f\n",area);
break;
case 3:
printf("Enter base and height : ");
scanf("%f%f",&base,&height);
area = (base*height)/2;
printf("Area of triangle : %f\n",area);
break;
case 4:
exit(0);
}
} while(1);
return 0;
}

OUTPUT:

1. Area of circle
2. Area of rectangle
3. Area of triangle
4. Exit
Enter your choice : 1
Enter radius : 4
Area of circle : 50.240002
1. Area of circle
2. Area of rectangle
3. Area of triangle
4. Exit
Enter your choice : 2
Enter length and width : 4 8
Area of rectangle : 32.000000
1. Area of circle
2. Area of rectangle
3. Area of triangle
4. Exit
Enter your choice : 3
Enter base and height : 2 3
Area of triangle : 3.000000
1. Area of circle
2. Area of rectangle
3. Area of triangle
4. Exit
Enter your choice : 4

3. Write a C program to calculate the factorial of a given number.
SOURCE CODE:

#include<stdio.h>
int main(){
    int num,fact=1,i;
    printf("Enter a number: ");
    scanf("%d",&num);
    for(i=1;i<=num;i++)
        fact = fact*i;
    printf("Factorial of %d is %d",num,fact);
    return 0;
}

OUTPUT:

Enter a number: 5
Factorial of 5 is 120

PPSC EXERCISE-3

netaji gandi

PPSC EXERCISE-2

 

EXERCISE-2

1. Write a C program to calculate the distance between the two points.
SOURCE CODE:

#include<stdio.h>
#include<math.h>
int main(){
  float x1,x2,y1,y2,dist;
  printf("Enter x1 and x2 : ");
  scanf("%f%f",&x1,&x2);
  printf("Enter y1 and y2 : ");
  scanf("%f%f",&y1,&y2);
  dist = sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1));
  printf("Distance between two points : %f\n",dist);
  return 0;
}

OUTPUT:

Enter x1 and x2 : 5 9
Enter y1 and y2 : 4 8
Distance between two points : 5.656854

2. Write a C program that accepts 4 integers p, q, r, s from the user where r and s are positive and p is even. If q is greater than r and s is greater than p and if the sum of r and s is greater than the sum of p and q print "Correct values", otherwise print "Wrong values".
SOURCE CODE:

#include<stdio.h>
int main(){
  int p,q,r,s;
  printf("Enter p,q,r,s values:");
  scanf("%d%d%d%d",&p,&q,&r,&s);
  if(r>0 && s>0 && p%2==0 && q>r && s>p && r+s>p+q)
    printf("Correct values");
  else
    printf("Wrong values");
  return 0;
}

OUTPUT-1:

Enter p,q,r,s values:4 8 2 13
Correct values

OUTPUT-2:

Enter p,q,r,s values:9 3 1 45
Wrong values

PPSC EXERCISE-2

netaji gandi

PPSC EXERCISE-1

 

EXERCISE-1

1. Write a C program to print a block F using hash (#), where the F has a height of six characters and width of five and four characters.
SOURCE CODE:

#include<stdio.h>
int main(){
    printf("#####\n");
    printf("#\n");
    printf("#\n");
    printf("####\n");
    printf("#\n");
    printf("#\n");
    return 0;
}

OUTPUT:

#####
#
#
####
#
#

2. Write a C program to compute the perimeter and area of a rectangle with a height of 7 inches and width of 5 inches.
SOURCE CODE:

#include<stdio.h>
int main(){
    float length, width, area, perimeter;
    printf("Enter the length and width of the rectangle : ");
    scanf("%f%f",&length,&width);
    area = length*width;
    perimeter = 2*(length+width);
    printf("Area of rectangle : %f square inches\n",area);
    printf("Perimeter of rectangle : %f inches\n",perimeter);
    return 0;
}

OUTPUT:

Enter the length and width of the rectangle : 7 5
Area of rectangle : 35.000000 square inches
Perimeter of rectangle : 24.000000 inches

3. Write a C program to display multiple variables.
SOURCE CODE:

#include<stdio.h>
int main(){
int i;
short int si;
long int li;
float f;
double d;
long double ld;
char c;
printf("Enter int, short int and long int values : ");
scanf("%d%hd%ld",&i,&si,&li);
printf("Enter float, double and long double values : ");
scanf("%f%lf%Lf",&f,&d,&ld);
printf("Enter a character : ");
scanf(" %c",&c);
printf("Given int value : %d\n",i);
printf("Given short int value : %hd\n",si);
printf("Given long int value : %ld\n",li);
printf("Given float value : %f\n",f);
printf("Given double value : %lf\n",d);
printf("Given long double value : %Lf\n",ld);
printf("Given character : %c\n",c);
return 0;
}

OUTPUT:

Enter int, short int and long int values : 12345 123 1234567
Enter float, double and long double values : 1.2 3.14 9.334
Enter a character : G
Given int value : 12345
Given short int value : 123
Given long int value : 1234567
Given float value : 1.200000
Given double value : 3.140000
Given long double value : 9.334000
Given character : G

PPSC EXERCISE-1

netaji gandi

Vignan_First_Year_Practice_Part_1_Solutions

 

Vignan_First_Year_Practice_Part_1_Solutions

netaji gandi

Vignan_First_Year_Practice_Part_1

 Dear First Year students of Vignan,

The Practice link one (I_Can_do_Coding_part_1) will be conducted on1st Jan 2023 to 3rd Jan 2023.

You are given 7 questions and 100 hours to complete them. 

Questions will be on basic coding. you can attempt it only in C language.

 When you the Start coding, please give your Roll No instead of Name.

Please participate in the following Link: 

I_Can_Do_Coding_part_1 (hackerearth.com)

Vignan_First_Year_Practice_Part_1

netaji gandi Sunday, January 1, 2023