제출 #735919

#제출 시각아이디문제언어결과실행 시간메모리
735919josanneo22Coins (IOI17_coins)C++17
100 / 100
11 ms1552 KiB
#include "coins.h"
#include <vector>
using namespace std; 
vector<int> coin_flips(vector<int> b, int c) {	int x = 0;	for(int i = 0; i < 64; ++ i)
		x ^= b[i] * i;
	vector<int> flips(1);
	flips[0] = c ^ x;
	return flips;
}
 
int find_coin(vector<int> b) {
	int x = 0;
	for(int i = 0; i < 64; ++ i)
		x ^= b[i] * i;
	return x;
}
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