Cod sursa(job #3353699)

Utilizator Alexandra282Calin Maria Alexandra Alexandra282 Data 10 mai 2026 12:03:58
Problema Numerele lui Stirling Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.9 kb
#include <iostream>
#include <fstream>
using namespace std;
int n,m;
const int MOD=98999;
long long S[201][201],s[201][201];
ifstream f("stirling.in");
ofstream g("stirling.out");
void precalcul(int n)
{
    S[0][0]=1;
    for(int i=1;i<=n;i++)
        for(int j=1;j<=i;j++)
    {
        S[i][j]=(j*S[i-1][j]+S[i-1][j-1])%MOD;
    }

}
void precalcul2(int n)
{
    s[0][0]=1;
    for(int i=1;i<=n;i++)
        for(int j=1;j<=i;j++)
    {
        s[i][j]=((1-i)*s[i-1][j]+s[i-1][j-1])%MOD;
    }

}
/*int Stirling(int n, int k)
{
    if(n==0&&n==k) return 1;
    if(n==0||k==0) return 0;
    return k*Stirling(n-1,k)+Stirling(n-1,k-1);
}*/
int main()
{
    int T,x;
    f>>T;
    precalcul(200);
    precalcul2(200);
    while(T--)
    {
        f>>x>>n>>m;
        if(x==2)
            g<<S[n][m]<<'\n';
        else
            g<<s[n][m]<<'\n';

    }
    return 0;
}