Cod sursa(job #1792871)

Utilizator rotti321Rotar Mircea rotti321 Data 30 octombrie 2016 18:05:02
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.6 kb
#include <bits/stdc++.h>
using namespace std;
const int NMAX = 250000;
const int LOG = 18;
int rmq[LOG + 5][NMAX + 5];
int main(){
    ifstream f("stramosi.in");
    ofstream g("stramosi.out");
    int n, m, i, j, p, q;

    f>>n>>m;
    for(i = 1; i <= n; i ++)
        f>>rmq[0][i];

    for(j = 1; j <= LOG; j ++)
        for(i = 1; i <= n; i ++)
            rmq[j][i] = rmq[j - 1][rmq[j - 1][i]];
    for(i = 1; i <= m; i ++){
        f>>q>>p;
        for(j = LOG; j >= 0; j--)
            if(p & (1 << j))
                q = rmq[j][q];
        g<<q<<'\n';
    }
    return 0;
}