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#include<stdio.h>
int main(){
int a[50][50],b[50][50],c[50][50],r1,c1,r2,c2,i,j;

printf("Enter the size of mat");
scanf("%d%d",&r1,&c1);

printf("Enter the size of mat");
scanf("%d%d",&r2,&c2);


if(r1==c1&&r2==c2){

    printf("elements1\n");
    for(i=0;i<r1;i++){
        for(j=0;j<c1;j++){
            scanf("%d",&a[i][j]);

        }
    }
printf("matrix is\n");
for(i=0;i<r1;i++){
        for(j=0;j<c1;j++){
                printf("%d\t",a[i][j]);
}
printf("\n");

}



printf("elements2\n");
    for(i=0;i<r2;i++){
        for(j=0;j<c2;j++){
            scanf("%d",&b[i][j]);

        }
    }
printf("matrix is\n");
for(i=0;i<r2;i++){
        for(j=0;j<c2;j++){
                printf("%d\t",b[i][j]);
}
printf("\n");

}

 for(i=0;i<r1;i++){
    for(j=0;j<c1;j++){
        c[i][j]=0;
    for( int k=0;k<c1;k++){

        c[i][j]+=a[i][k]*b[k][j];
        }

    }

 }
printf("resultant\n");
for(i=0;i<r1;i++){
    for(j=0;j<c1;j++){
        printf("%d\t",c[i][j]);
    }
    printf("\n");}
}
else{
        printf("Invalid");
}
return 0;
}
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