Submission #69339

#	Time	Username	Problem	Language	Result	Execution time	Memory
69339		Noam527	Coins (IOI17_coins)	C++17	100 / 100	13 ms	1504 KiB

coins

#include "coins.h"
#include <bits/stdc++.h>
#define endl '\n'
#define fast ios::sync_with_stdio(0), cin.tie(0), cout.tie(0)
#define debug cout << "ok" << endl
#define finish(x) return cout << x << endl, 0
typedef long long ll;
typedef long double ldb;
const int md = 1e9 + 7, inf = 1e9 + 7;
const ll hs = 199;
const ldb eps = 1e-9, pi = acos(-1);
using namespace std;

vector<int> coin_flips(vector<int> b, int c) {
	for (int i = 0; i < 64; i++)
		c ^= (b[i] * i);
	return{ c };
}

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

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