Cod sursa(job #3312870)

Utilizator Andrei_RizeaAndrei Rizea Andrei_Rizea Data 30 septembrie 2025 15:28:25
Problema Numerele lui Stirling Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.83 kb
#include <iostream>
#include <fstream>

using namespace std;

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

const int N = 201, MOD = 98999;

int t, n, m, speta, s[N][N], S[N][N];

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

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

int main()
{
    precalculare_s();
    precalculare_S();
    f >> t;
    while(t--)
    {
        f >> speta >> n >> m;
        if(speta == 1)
            g << s[n][m] << "\n";
        if(speta == 2)
            g << S[n][m] << "\n";
    }
    return 0;
}