제출 #650133

#제출 시각아이디문제언어결과실행 시간메모리
650133noob_c0deCoins (IOI17_coins)C++17
0 / 100
8 ms1212 KiB
#include<bits/stdc++.h>
using namespace std;
vector<int> coin_flips(vector<int> b, int c)
{
	int ans = 0;
	for (int i = 0; i < 64; i++) 
	if (b[i] == 1) ans ^= i;
	ans ^= c;
	b[ans] ^= 1;
	return b;
}
int find_coin(vector<int> b)
{
	int ans = 0;
	for (int i = 0; i < 64; i++) 
	if (b[i] == 1) ans ^= i;
	return ans;
}
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