Cod sursa(job #3331608)

Utilizator The_teoTeo Pana The_teo Data 29 decembrie 2025 13:26:58
Problema Numerele lui Stirling Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.8 kb
#include <iostream>
#include <fstream>

using namespace std;
const int N = 205,
          MOD = 98999;

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

int s[N][N], S[N][N];

void precalc()
{
    s[1][1] = 1;
    S[1][1] = 1;
    for(int i = 2; i <= 200; ++i)
    {
        for(int j = 1; j <= i; ++j)
        {
            s[i][j] = (s[i - 1][j - 1] - (i - 1) * s[i - 1][j]) % MOD;
            S[i][j] = (S[i - 1][j - 1] + j * S[i - 1][j]) % MOD;
        }
    }
}

int main()
{
    precalc();
    int t;
    fin >> t;
    while(t--)
    {
        int speta, n, m;
        fin >> speta >> n >> m;
        if(speta == 1)
            fout << s[n][m] << '\n';
        else
            fout << S[n][m] << '\n';
    }
    fin.close();
    fout.close();
    return 0;
}