Submission #318604

#	Time	Username	Problem	Language	Result	Execution time	Memory
318604		mihai145	Coins (IOI17_coins)	C++14	100 / 100	11 ms	1864 KiB

coins

#include "coins.h"

std::vector<int> coin_flips(std::vector<int> b, int c) {
    std::vector<int> flips(1);
    int x = find_coin(b);
    flips[0] = x ^ c;
    return flips;
}

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

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