//Program to read elements of array and print them.
#include <stdio.h>

int main() {
int a[5],i;
for(i=0;i<5;i++) //for loop for reading elements of array
{
printf("Enter the element at %d index:",i);
scanf("%d",&a[i]);
}
for(i=0;i<5;i++)
{
printf("\nThe element at %d index is :%d",i,a[i]); //for loop for printing elements of array
}
return 0;
}
//#array

//Program to read marks of 5 subjects and calculate total marks and average.
#include <stdio.h>
int main() {
float marks[5],sum=0.0;
float avg;
for(int i=0;i<5;i++)
{ printf("Enter marks in Subject %d:",i+1);
scanf("%f",&marks[i]);
sum=sum+marks[i];
}
avg=sum/5;
printf("Total marks obtained:%.2f\n",sum);
printf("Average:%f",avg);
return 0;
}
//#array

//Program to read array of 10 integers and count number of even and odd elements.
#include <stdio.h>
int main() {
int n[10],even=0,odd=0;
for(int i=0;i<10;i++)
{
printf("Enter element at index %d:",i);
scanf("%d",&n[i]);
if(n[i]%2==0){
even++;
}
else{
odd++;
}
}
printf("Total number of even numbers are:%d\n",even);
printf("Total number of odd numbers are:%d\n",odd);
return 0;
}
//#array

/*Program to read 2 arrays of size 5 and store integers in them ,then
calculate the sum of corresponding elements of those two array's and
store the result in third array .*/
#include <stdio.h>
int main() {
int a[5],b[5],c[5];
printf("Enter the elements of first array:\n");
for(int i=0;i<5;i++)
{
printf("Enter the Element at %d index:",i);
scanf("%d",&a[i]);
}
printf("Enter the elements of second array:\n");
for(int i;i<5;i++)
{
printf("Enter the Element at %d index:",i);
scanf("%d",&b[i]);
}
printf("Elements of Third Array after calculating sum of 2 arrays:\n");
for(int i=0;i<5;i++)
{
c[i]=a[i]+b[i];
printf("The Element at index %d is :%d\n",i,c[i]);
}
return 0;
}
//#array

//Program to print 2X3 matrix and find sum of all elemets in it.
#include <stdio.h>
int main() {
int m[2][3],i,j,sum=0;
for(i=0;i<2;i++)
{
for(j=0;j<3;j++)
{ printf("Enter the element at m[%d][%d]:",i,j);
scanf("%d",&m[i][j]);
sum=sum+m[i][j];
}
}
printf("The matrix is:\n");
for(i=0;i<2;i++)
{
for(j=0;j<3;j++)
{
printf("%d\t",m[i][j]);
}
printf("\n");
}
printf("Sum of all the elements of matrix:%d",sum);
return 0;
}
//#array

//Program to read 2X3 matrix and print transpose of it (3X2).
#include <stdio.h>
int main() {
int m[2][3],i,j;
for(i=0;i<2;i++)
{
for(j=0;j<3;j++)
{ printf("Enter the element at m[%d][%d]:",i,j);
scanf("%d",&m[i][j]);
}
}
printf("The matrix is:\n");
for(i=0;i<2;i++)
{
for(j=0;j<3;j++)
{
printf("%d\t",m[i][j]);
}
printf("\n");
}
printf("The transposed matrix is:\n");
for(i=0;i<3;i++)
{
for(j=0;j<2;j++)
{
printf("%d\t",m[j][i]);
}
printf("\n");
}
return 0;
}
//#array

//Program to perform sum of individual row and column of 3X3 matrix, read the elements of matrix.
#include<stdio.h>
int main()
{int m[3][3],i,j,sr,sc;
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{ printf("Enter the element at m[%d][%d]:",i,j);
scanf("%d",&m[i][j]);
}
}
printf("The matrix is:\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf("%d\t",m[i][j]);
}
printf("\n");
}
for(i=0;i<3;i++)
{ sr=0,sc=0;
for(j=0;j<3;j++)
{ sr=sr+m[i][j];
sc=sc+m[j][i];
}
printf("Th sum of row %d:%d\n",i,sr);
printf("The sum of column %d:%d\n",i,sc);
}
}
//#array

//Program to do sum of 2 matrices and store the sum in third matrix, read the elements of matrix.
#include<stdio.h>
int main()
{int a[2][3],b[2][3],c[2][3],i,j;
printf("Enter elemnts of first matrix:\n");
for(i=0;i<2;i++)
{
for(j=0;j<3;j++)
{ printf("Enter the element at a[%d][%d]:",i,j);
scanf("%d",&a[i][j]);
}
}
printf("Enter elemnts of second matrix:\n");
for(i=0;i<2;i++)
{
for(j=0;j<3;j++)
{ printf("Enter the element at b[%d][%d]:",i,j);
scanf("%d",&b[i][j]);
}
}
for(i=0;i<2;i++)
{
for(j=0;j<3;j++)
{ c[i][j]=a[i][j]+b[i][j];
}
}
printf("The sum of two matices=\n");
for(i=0;i<2;i++)
{
for(j=0;j<3;j++)
{ printf("%d\t",c[i][j]);
}
printf("\n");
}
return 0;
}
//#array