Cod sursa(job #3201982)

Utilizator BucsMateMate Bucs BucsMate Data 10 februarie 2024 11:45:29
Problema Numerele lui Stirling Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1 kb
#include <iostream>
#include <fstream>

using namespace std;

int main()
{
    ifstream input("stirling.in");
    ofstream output("stirling.out");
    int s_first[201][201] = {}, S_second[201][201] = {};
    s_first[0][0] = 1;
    S_second[0][0] = 1;
    for(int i = 1; i <= 200; i++){
        s_first[i][i] = 1;
        S_second[i][i] = 1;
    }
    for(int n = 2; n <= 200; n++){
        s_first[n][1] = -(s_first[n-1][1] * (n-1)) % 98999;
        S_second[n][1] = 1;
    }
    for(int k = 2; k <= 200; k++){
        for(int n = k+1; n <= 200; n++){
            s_first[n][k] = (s_first[n-1][k-1] - (n-1)*s_first[n-1][k]) % 98999;
            S_second[n][k] = (S_second[n-1][k-1] + k*S_second[n-1][k]) % 98999;
        }
    }
    int T, x, n, m;
    input >> T;
    for(int i = 0; i < T; i++){
        input >> x >> n >> m;
        if(x == 1){
            output << s_first[n][m] << "\n";
        }else{
            output << S_second[n][m] << "\n";
        }
    }
    return 0;
}