Cod sursa(job #3301694)

Utilizator Iustin_Mircea2010Iustin Mircea Iustin_Mircea2010 Data 29 iunie 2025 10:30:00
Problema Stramosi Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.6 kb
#include <bits/stdc++.h>

using namespace std;

int bl[250005][20];

int main(){
    
    ifstream cin("stramosi.in");
    ofstream cout("stramosi.out");
    
    int n, m;
    cin >> n >> m;
    for(int i = 1; i <= n; i++){
        cin >> bl[i][0];
    }
    for(int b = 1; b < 20; b++){
        for(int i = 1; i <= n; i++){
            bl[i][b] = bl[bl[i][b - 1]][b - 1];
        }
    }
    while(m--){
        int a, b;
        cin >> a >> b;
        for(int bit = 0; bit < 20; bit++){
            if(b & (1 << bit))
                a = bl[a][bit];
        }
        cout << a << '\n'; 
    }
    return 0;
}