Submission #1006126

#	Time	Username	Problem	Language	Result	Execution time	Memory
1006126		HishamAlshehri	Coins (IOI17_coins)	C++17	100 / 100	8 ms	1944 KiB

coins

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

vector<int> coin_flips(vector<int> b, int c) {
    vector<int> flips(1);
    int xorror = 0;
    for (int i = 0; i < 64; i++)
    {
        if (b[i])
            xorror ^= i;
    }
    xorror ^= c;
    flips[0] = xorror;
    return flips;
}

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

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