Submission #594825

#	Time	Username	Problem	Language	Result	Execution time	Memory
594825		shezitt	Coins (IOI17_coins)	C++14	100 / 100	12 ms	1564 KiB

coins

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

using namespace std;

vector<int> coin_flips(vector<int> b, int c) {
	vector<int> flips;
	int X = c;
	for(int i=0; i<(int)b.size(); ++i){
		X ^= (b[i] ? i : 0);
	}
	flips.push_back(X);
	return flips;
}

int find_coin(vector<int> b) {
	int ans = 0;
	for(int i=0; i<(int)b.size(); ++i){
		ans ^= (b[i] ? i : 0);
	}
	return ans;
}

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