Question

c program for the addition of two matrices

Answer 1

#include<stdio.h>
int main()
{
int m,n,i,j,a[10][10],b[10][10],c[10][10];
printf("enter m,n\n");
scanf("%d%d",&m,&n);
printf("enter 1st matrice elements\n");
for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
{
scanf("%d",&a[i][j]);
}
}
printf("enter 2nd matrice elements\n");
for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
{
scanf("%d",&b[i][j]);
}
}
for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
{
c[i][j]=a[i][j]+b[i][j];
}
}
printf("sum of 2 matrices\n");
for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
{
printf("%3d",c[i][j]);
}
printf("\n");
}
return 0;
}

Answer 2

#include<stdio.h>
int main()
{
int r1,r2,c1,c2,a[100][100],b[100][100],c[100][100];
printf("entre no.of rows and coloums in matrix 1");
scanf("%d %d",&r1,&c1);
printf("entre no.of rows and coloums in matrix 2");
scanf("%d %d",&r2,&c2);
if(r1==r2 && c1==c2)
{
printf("entre the elements in 1");
int i,j;
for(i=0;i<r1;i++)
{
for(j=0;j<c1;j++)
{
scanf("%d",&a[i][j]);
}
}
printf("entre the elements in 2");
for(i=0;i<r2;i++)
{
for(j=0;j<c2;j++)
{
scanf("%d",&b[i][j]);
}
}
for(i=0;i<r2;i++)
{
for(j=0;j<c2;j++)
{
c[i][j]=a[i][j]+b[i][j];
}
}
for(i=0;i<r2;i++)
{
for(j=0;j<c2;j++)
{
printf("%d",c[i][j]);
}
printf("\n");
}
}
}

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