Cod sursa(job #1795529)

Utilizator calin9819Costea Calin calin9819 Data 2 noiembrie 2016 16:59:12
Problema Numerele lui Stirling Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.93 kb
#include <iostream>
#include <fstream>
using namespace std;

ifstream f("stirling.in");
ofstream g("stirling.out");

const int MOD = 98999;

int S[201][201], n, m, s[201][201], t, x;

void stirling1(int n, int m) {
    s[0][0] = 1;
    s[1][1] = 1;
    for (int i = 2; i <= n; i++) {
        s[i][i] = 1;
        for (int j = 1; j < i; j++)
            s[i][j] = (s[i - 1][j - 1] - (i - 1) * s[i - 1][j]) % MOD;
    }
}

void stirling2(int n, int m) {
    S[0][0] = 1;
    S[1][1] = 1;
    for (int i = 2; i <= n; i++) {
        S[i][1] = 1;
        S[i][i] = 1;
        for (int j = 2; j < i; j++)
            S[i][j] = (S[i - 1][j - 1] + j * S[i - 1][j]) % MOD;
    }
}

int main()
{
    f >> t;
    stirling1(200, 200);
    stirling2(200, 200);
    for (int i = 1; i <= t; i++) {
        f >> x >> n >> m;
        if (x == 1) g << s[n][m] << '\n';
        else g << S[n][m] << '\n';
    }
    return 0;
}