제출 #953584

#제출 시각아이디문제언어결과실행 시간메모리
953584SmuggingSpunCoins (IOI17_coins)C++14
0 / 100
7 ms1696 KiB
#include<bits/stdc++.h>
using namespace std;
vector<int>coin_flips(vector<int>b, int c){
	int sum_xor = 0;
	for(int i = 0; i < 64; i++){
		if(b[i] == 1){
			sum_xor ^= i;
		}
	}
	b[sum_xor ^ c] ^= 1;
	return b;
}
int find_coin(vector<int>b){
	int ans = 0;
	for(int i = 1; i < 64; i++){
		if(b[i] == 1){
			ans ^= i;
		}
	}
	return ans;
}
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