Submission #655011

#	Time	Username	Problem	Language	Result	Execution time	Memory
655011		shmad	Coins (IOI17_coins)	C++17	100 / 100	9 ms	1552 KiB

coins

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

using namespace std;

std::vector<int> coin_flips(std::vector<int> b, int c) {
	int res = c;
	for (int i = 0; i < 64; i++) {
		if (b[i]) res ^= i;
	}
	vector<int> v;
	v.push_back(res);
	return v;
}

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

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