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- #include <stdio.h>
- #define N1 800
- #define N2 800
- #define N3 800
- double A[N1][N2];
- double B[N2][N3];
- double C[N1][N3];
- int main ()
- {
- int i, j, k;
- double sum;
- for (i = 0; i<N1; i++) {
- for (j = 0; j<N2; j++) {
- A[i][j] = (double) i;
- }
- }
- for (j = 0; j<N2; j++) {
- for (k = 0; k<N3; k++) {
- B[j][k] = (double) j;
- }
- }
- for (i = 0; i<N1; i++) {
- for (k = 0; k<N3; k++) {
- sum = 0.0;
- for (j = 0; j<N2; j++) {
- sum += A[i][j] * B[j][k];
- }
- C[i][k] = sum;
- }
- }
- printf("Result: %f\n", C[N1/2][N3/2]);
- return 0;
- }
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