Submission #524019

#	Time	Username	Problem	Language	Result	Execution time	Memory
524019		Deepesson	Coins (IOI17_coins)	C++17	0 / 100	7 ms	1340 KiB

coins

#include <bits/stdc++.h>
#include "coins.h"

std::vector<int> coin_flips(std::vector<int> b, int c) {
    std::vector<int> flips(1);
    flips=b;
    long long xoro=0;
    for(auto&x:b)xoro^=x;
    long long quer = c^xoro;
    flips[0]=quer;
    return flips;
}

int find_coin(std::vector<int> b) {
    int ans=0;
    for(auto&x:b)ans^=x;
    return ans;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 15
• Subtask 3: 0 / 10
• Subtask 4: 0 / 15
• Subtask 5: 0 / 50