Cod sursa(job #787530)

Utilizator stefanzzzStefan Popa stefanzzz Data 13 septembrie 2012 16:43:07
Problema Numerele lui Stirling Scor 90
Compilator cpp Status done
Runda Arhiva educationala Marime 0.66 kb
#include <fstream>
#define MAXN 200
#define NRM 98999
using namespace std;
ifstream f("stirling.in");
ofstream g("stirling.out");

int t,x,n,m,s1[MAXN+5][MAXN+5],s2[MAXN+5][MAXN+5];

int main()
{
    int i,j;
    s1[0][0]=s2[0][0]=1;
    for(i=1;i<=MAXN;i++)
        for(j=1;j<=i;j++){
            s1[i][j]=(s1[i-1][j-1]+(i-1)*s1[i-1][j])%NRM;
            s2[i][j]=(s2[i-1][j-1]+j*s2[i-1][j])%NRM;}
    f>>t;
    for(i=1;i<=t;i++){
        f>>x>>n>>m;
        if(x==1){
            if((n-m)%2)
                g<<'-';
            g<<s1[n][m]<<'\n';}
        else
            g<<s2[n][m]<<'\n';}
    f.close();
    g.close();
    return 0;
}