#include<stdio.h>
//code by rajendra
void readmat(int row,int col,int mat[][10]){
int a,b;
for(a=0;a<row;a++)
for(b=0;b<col;b++)
scanf("%d",&mat[a][b]);
}
void printmat(int row,int col,int mat[][10]){
int a,b;
for(a=0;a<row;a++)
for(b=0;b<col;b++)
scanf("%d",&mat[a][b]);
printf("\n");
}
void multiply(int row1,int col1,int col2,int mat1[][10],int mat2[][10],int mat3[][10]){
int a,b,c;
for(a=0;a<row1;a++)
for(b=0;b<col2;b++){
int val=0;
for(c=0;c<col1;c++)
val+=mat1[a][c]*mat2[c][b];
mat3[a][b]=val;
}
}
main(){
int r1,c1,r2,c2,m1[10][10],m2[10][10],m3[10][10];
printf("Enter the order of first matrix");
scanf("%d%d",&r1,&c1);
printf("the first matrix\n");
readmat(r1,c1,m1);
printf("Enter the order of second matrix");
scanf("%d%d",&r2,&c2);
printf("the first matrix\n");
readmat(r2,c2,m2);
if(c1!=r2)
printf("multiplicatio is not allowed\n");
else
{
printf("multiplication of two matrix is= \n");
multiply(r1,c1,c2,m1,m2,m3);
printmat(r1,c2,m3);
}
}
//code by rajendra
void readmat(int row,int col,int mat[][10]){
int a,b;
for(a=0;a<row;a++)
for(b=0;b<col;b++)
scanf("%d",&mat[a][b]);
}
void printmat(int row,int col,int mat[][10]){
int a,b;
for(a=0;a<row;a++)
for(b=0;b<col;b++)
scanf("%d",&mat[a][b]);
printf("\n");
}
void multiply(int row1,int col1,int col2,int mat1[][10],int mat2[][10],int mat3[][10]){
int a,b,c;
for(a=0;a<row1;a++)
for(b=0;b<col2;b++){
int val=0;
for(c=0;c<col1;c++)
val+=mat1[a][c]*mat2[c][b];
mat3[a][b]=val;
}
}
main(){
int r1,c1,r2,c2,m1[10][10],m2[10][10],m3[10][10];
printf("Enter the order of first matrix");
scanf("%d%d",&r1,&c1);
printf("the first matrix\n");
readmat(r1,c1,m1);
printf("Enter the order of second matrix");
scanf("%d%d",&r2,&c2);
printf("the first matrix\n");
readmat(r2,c2,m2);
if(c1!=r2)
printf("multiplicatio is not allowed\n");
else
{
printf("multiplication of two matrix is= \n");
multiply(r1,c1,c2,m1,m2,m3);
printmat(r1,c2,m3);
}
}
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