Cod sursa(job #2660753)

Utilizator AndreiAlexandru2k3Ciucan Andrei Alexandru AndreiAlexandru2k3 Data 20 octombrie 2020 13:50:02
Problema Numerele lui Stirling Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.82 kb
#include <fstream>
using namespace std;

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

const int NMAX = 201,
          MOD = 98999;

int n, k, t, speta;
int s[NMAX][NMAX], S[NMAX][NMAX];

void speta1(int N)
{
    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 speta2(int N)
{
    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()
{
    speta1(NMAX-1);
    speta2(NMAX-1);
    f >> t;
    while(t--)
    {
        f >> speta >> n >> k;
        if(speta==1) g<<s[n][k];
        else g<<S[n][k];
        g<<'\n';
    }
    f.close();
    g.close();
    return 0;
}