written 5.7 years ago by
teamques10
★ 68k
|
•
modified 5.7 years ago
|
Program:
#include <stdio.h>
#include <stdlib.h>
void input(int m, int n, int a[m][n])
{
for (int i = 0; i < m; i++)
{
for (int j = 0; j < n; j++)
{
printf("%d, %d : ", i, j);
scanf("%d", &a[i][j]);
}
}
}
void print(int m, int n, int a[m][n])
{
int i, j;
for (i = 0; i < m; i++)
{
for (j = 0; j < n; j++)
{
printf("%3d ", a[i][j]);
}
printf("\n");
}
}
void multiply(int m, int n, int p, int a[m][n], int b[n][p], int c[m][p])
{
for (int i = 0; i < m; i++)
{
for (int j = 0; j < p; j++)
{
c[i][j] = 0;
for (int k = 0; k < n; k++)
{
c[i][j] += a[i][k] * b[k][j];
}
}
}
}
voidmain()
{
int r1, c1, r2, c2;
printf("Row and column for matrix #1 :\n");
scanf("%d %d", &r1, &c1);
printf("Row and column for matrix #2 :\n");
scanf("%d %d", &r2, &c2);if (r2 != c1)
{
printf("The matrices are incompatible.\n");
exit(EXIT_FAILURE);
}
int mat1[r1][c1], mat2[r2][c2], ans[r1][c2];
printf("Enter elements of the first matrix.\n");
input(r1, c1, mat1);
printf("The elements of the first matrix are :\n");
print(r1, c1, mat1);
printf("Enter elements of the second matrix.\n");
input(r2, c2, mat2);
printf("The elements of the second matrix are :\n");
print(r2, c2, mat2);
multiply(r1, r2, c2, mat1, mat2, ans);
printf("The product is :\n");
print(r1, c2, ans);
getch();
}
Output:
Row and column for matrix #1 :
2
2
-------------------------
Row and column for matrix #2 :
2
2
--------------------------
Enter elements of the first matrix.
0, 0 : 1
0, 1 : 17
1, 0 : 25
1, 1 : 30
---------------------------------
The elements of the first matrix are :
1 17
25 30
--------------------------------
Enter elements of the second matrix.
0, 0 : 74
0, 1 : 89
1, 0 : 3
1, 1 : 65
--------------------------
The elements of the second matrix are :
74 89
3 65
---------------------------
The product is :
125 1194
1940 4175
and 2 others joined a min ago.
teamques10
★ 68k