Cod sursa(job #3327399)

Utilizator Warrior.exeZgorcea Mihai-Alexandru Warrior.exe Data 3 decembrie 2025 18:20:13
Problema Numerele lui Stirling Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.8 kb
#include <iostream>
#include <fstream>

using namespace std;

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

const int N=201,MOD=98999;

int t,n,m,speta,s[N][N],S[N][N];

void precalculare_s(){
	s[1][1]= 1;
	for( int i=2 ; i<N ; ++i )//precalculam pana la limita maxima
		for( int j=1 ; j<=i ; ++j )//pentru j>i s(i,j)=0 pentru ca ciclurile au cel putin un element
			s[i][j]= ( s[i-1][j-1] - (i-1)*s[i-1][j] )%MOD ;
}

void precalculare_S(){
	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(){
	precalculare_s();
	precalculare_S();

	fin>>t;

	while(t--){
        fin>>speta>>n>>m;
		if(speta==1)
			fout<<s[n][m]<<'\n';
		if(speta==2)
			fout<<S[n][m]<<'\n';
	}

	return 0;
}