Submission #1006121

#	Time	Username	Problem	Language	Result	Execution time	Memory
1006121		HishamAlshehri	Coins (IOI17_coins)	C++17	0 / 100	5 ms	1828 KiB

coins

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

vector<int> coin_flips(vector<int> b, int c) {
    vector<int> flips;
    int xorror = 0;
    for (int i = 0; i < 64; i++)
    {
        flips.push_back(b[i]);
        if (b[i])
            xorror ^= i;
    }
    xorror ^= c;
    flips[xorror] ^= 1;
    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: 0 / 10
• Subtask 2: 0 / 15
• Subtask 3: 0 / 10
• Subtask 4: 0 / 15
• Subtask 5: 0 / 50