Submission #1086200

#	Time	Username	Problem	Language	Result	Execution time	Memory
1086200		codexistent	Coins (IOI17_coins)	C++14	0 / 100	6 ms	1700 KiB

coins

#include "coins.h"

std::vector<int> coin_flips(std::vector<int> b, int c) {
    std::vector<int> flips(1);
    
    int xr = 0;
    for(int i : b) xr ^= i;

    xr %= 64;
    flips[0] = c ^ xr;

    return flips;
}

int find_coin(std::vector<int> b) {
    int xr = 0;
    for(int i : b) xr ^= i;

    return xr % 64;
}

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