Cod sursa(job #3355981)

Utilizator flv23Flv Alex flv23 Data 28 mai 2026 12:22:39
Problema Numerele lui Stirling Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.77 kb
#include <fstream>
using namespace std;

const long long MOD = 98999;
const int N = 201;            // n, m up to 200

long long s[N][N];            // Stirling first kind (signed)
long long S[N][N];            // Stirling second kind

int main() {
    s[0][0] = 1;
    S[0][0] = 1;
    for (int n = 1; n < N; n++) {
        for (int m = 1; m <= n; m++) {          // m > n stays 0 (default)
            s[n][m] = (s[n-1][m-1] - (long long)(n-1) * s[n-1][m]) % MOD;
            S[n][m] = (S[n-1][m-1] + (long long)m   * S[n-1][m]) % MOD;
        }
    }

    ifstream fin("stirling.in");
    ofstream fout("stirling.out");

    int T;
    fin >> T;
    while (T--) {
        int x, n, m;
        fin >> x >> n >> m;
        fout << (x == 1 ? s[n][m] : S[n][m]) << '\n';
    }
    return 0;
}