Submission #652626

#	Time	Username	Problem	Language	Result	Execution time	Memory
652626		ymm	Coins (IOI17_coins)	C++17	100 / 100	12 ms	1624 KiB

coins

#include "coins.h"
#include <bits/stdc++.h>
#define Loop(x,l,r) for (ll x = (l); x < (ll)(r); ++x)
#define LoopR(x,l,r) for (ll x = (r)-1; x >= (ll)(l); --x)
typedef long long ll;
typedef std::pair<int, int> pii;
typedef std::pair<ll , ll > pll;
using namespace std;

std::vector<int> coin_flips(std::vector<int> b, int c)
{
	int ans = c;
	Loop (i,0,64)
		if (b[i])
			ans ^= i;
	return {ans};
}

int find_coin(std::vector<int> b)
{
	int ans = 0;
	Loop (i,0,64)
		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