Submission #988668

#	Time	Username	Problem	Language	Result	Execution time	Memory
988668		ElenaBM	Coins (IOI17_coins)	C++17	100 / 100	8 ms	1492 KiB

coins

#include "coins.h"
#include <bits/stdc++.h>
using namespace std;

vector<int>coin_flips(vector<int>b, int c){
    vector<int>flips;
    int val = 0;
    for (int i = 0; i < 64; i++){
        if (b[i]){
            val^= i;
        }
    }
    flips.push_back(val^c);
    return flips;
}

int find_coin(vector <int>b){
    int val =0;
    for (int i =0; i < 64; i++){
        if (b[i])val^= i;
    }
    return val;
}

• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 10 / 10
• Subtask 4: 15 / 15
• Subtask 5: 50 / 50