Cod sursa(job #1792889)

Utilizator rotti321Rotar Mircea rotti321 Data 30 octombrie 2016 18:10:50
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.58 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(i = 1; i <= LOG; i ++)
        for(j = 1; j <= n; j ++)
            rmq[i][j] = rmq[i - 1][rmq[i - 1][j]];
    for(; m; m--){
        f>>q>>p;
        for(i = LOG; i >= 0; i--)
            if(p & (1 << i))
                q = rmq[i][q];
        g<<q<<'\n';
    }
    return 0;
}