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https://oj.luyencode.net/problem/DPDIVI #913

Open utterances-bot opened 1 year ago

utterances-bot commented 1 year ago

Chi tiết bài tập - Luyện Code Online

https://oj.luyencode.net/problem/DPDIVI

quanghuy121 commented 1 year ago

Xem code AC

```cpp #include using namespace std; #define ll long long ll f[50][50]; int t, n, k; int main(){ ios_base::sync_with_stdio(false); cin.tie(NULL); f[0][0] = 1; for (int i = 1; i<=25; i++){ for (int j = 1; j<=25; j++){ f[i][j] = f[i-1][j-1] + j*f[i-1][j]; } } cin >> t; while (t--){ cin >> n >> k; cout << f[n][k] << endl; } } ```