Cod sursa(job #1239372)

Utilizator enedumitruene dumitru enedumitru Data 8 octombrie 2014 23:05:05
Problema Congr Scor 80
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.5 kb
#include <fstream>
#include <cstdlib>
#include <ctime>
using namespace std;
ifstream f("congr.in"); ofstream g("congr.out");
int p,i,j,a[600000],b[600000];
long long s=0;
int main () 
{   srand(time(0));
    f>>p;
    for(i=1;i<2*p;i++) 
	{   f>>a[i]; b[i]=i;
        if(i<=p) s+=a[i];
    }
    while(s%p) 
	{   i=1+rand()%p;
        j=1+p+rand()%(p-1);
        s=s+a[b[j]]-a[b[i]];
        swap(b[i],b[j]);
    }
    for (i=1;i<=p;i++) g<<b[i]<<' ';
    g<<'\n'; g.close(); return 0;
}