Statement: Write C program to read two r*c matrices A and B from user (r, c are user inputs) and print the matrix 5A+7B+9 (add 9 with each element of the matrix 5A+7B to get the resultant matrix).
Solution:
Code Part:
#include<stdio.h>
int main() {
int r, c, i, j;
// taking user input for r and c
printf("Enter no. of rows = ");
scanf("%d", & r);
printf("\nEnter no. of cols = ");
scanf("%d", & c);
int matrixA[r][c], matrixB[r][c], matrixsum[r][c];
// taking user input for matrixA
printf("\nEnter values to the matrix A = \n");
for (i = 0; i < r; i++) {
for (j = 0; j < c; j++) {
scanf("%d", & matrixA[i][j]);
}
}
// taking user input for matrixB
printf("\nEnter values to the matrix B = \n");
for (i = 0; i < r; i++) {
for (j = 0; j < c; j++) {
scanf("%d", & matrixB[i][j]);
}
}
for (i = 0; i < r; i++) {
for (j = 0; j < c; j++) {
matrixsum[i][j] = (5 * matrixA[i][j]) + (7 * matrixB[i][j]) + 9;
}
}
printf("\nValues of the matrix 5A+7B+9 = \n");
for (i = 0; i < r; i++) {
for (j = 0; j < c; j++) {
printf("%d\t", matrixsum[i][j]);
}
printf("\n");
}
return 0;
}
Output:
