C Program: Multiply Two 4×4 Matrices
#include <stdio.h>
int main() {
int A[4][4], B[4][4], C[4][4];
int i, j, k;
// Input for first matrix A
printf("Enter elements of first 4x4 matrix (A):\n");
for(i = 0; i < 4; i++) {
for(j = 0; j < 4; j++) {
scanf("%d", &A[i][j]);
}
}
// Input for second matrix B
printf("Enter elements of second 4x4 matrix (B):\n");
for(i = 0; i < 4; i++) {
for(j = 0; j < 4; j++) {
scanf("%d", &B[i][j]);
}
}
// Multiply matrices A and B, store in C
for(i = 0; i < 4; i++) {
for(j = 0; j < 4; j++) {
C[i][j] = 0;
for(k = 0; k < 4; k++) {
C[i][j] += A[i][k] * B[k][j];
}
}
}
// Display the result matrix C
printf("Result of multiplication (A x B) is:\n");
for(i = 0; i < 4; i++) {
for(j = 0; j < 4; j++) {
printf("%d\t", C[i][j]);
}
printf("\n");
}
return 0;
}
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