Submission #525606

#	Time	Username	Problem	Language	Result	Execution time	Memory
525606		tabr	Coins (IOI17_coins)	C++17	100 / 100	9 ms	1540 KiB

coins

#include <bits/stdc++.h>
using namespace std;
#ifdef tabr
#include "library/debug.cpp"
#else
#define debug(...)
#endif

#include "coins.h"

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

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

#ifdef tabr
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    return 0;
}
#endif

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