Submission #117712

#	Time	Username	Problem	Language	Result	Execution time	Memory
117712		nvmdava	Coins (IOI17_coins)	C++17	0 / 100	12 ms	1464 KiB

coins

#include "coins.h"
#include <bits/stdc++.h>
int i, res;
std::vector<int> coin_flips(std::vector<int> b, int c) {
    for(i = 0; i < 64; i++) res ^= b[i] * i;
    return {res ^ c};
}

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

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