Cod sursa(job #3278791)

Utilizator ax_dogaruDogaru Alexandru ax_dogaru Data 20 februarie 2025 19:22:41
Problema Numerele lui Stirling Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.65 kb
#include <bits/stdc++.h>

using namespace std;

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

int t, s1[205][205], s2[205][205], n, m, x, MOD=98999;

void precalc() {
    s1[1][1]=s2[1][1]=1;
    for(int i=2; i<=200; i++) {
        for(int j=1; j<=i; j++) {
            s1[i][j]=(s1[i-1][j-1]-(i-1)*s1[i-1][j])%MOD;
            s2[i][j]=(s2[i-1][j-1]+j*s2[i-1][j])%MOD;
        }
    }

}

int main()
{
    precalc();
    fin >> t;
    while(t--) {
        fin >> x >> n >> m;
        if(x==1) {
            fout << s1[n][m] << "\n";
        } else {
            fout << s2[n][m] << "\n";
        }
    }
    return 0;
}