提交记录 17705
提交时间 |
评测时间 |
2022-05-15 21:42:47 |
2022-05-15 21:42:48 |
#define idx(i, j) ((i) * n + (j))
void matrix_multiply(int n, const double *A, const double *B, double *C) {
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
C[idx(i, j)] = 0;
}
}
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
for (int k = 0; k < n; ++k) {
C[idx(i, k)] += a[idx(i, j)] * b[idx(j, k)];
}
}
}
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