제출 #1141520

#제출 시각아이디문제언어결과실행 시간메모리
1141520Saul0906Coins (IOI17_coins)C++20
100 / 100
6 ms584 KiB
#include "coins.h"
#include <bits/stdc++.h>
#define pii pair<int, int>
#define rep(a,b,c) for(int a=b; a<c; a++)
#define repr(a,b,c) for(int a=b-1; a>c-1; a--)
#define repa(a,b) for(auto a:b)
#define all(a) a.begin(), a.end()
#define fi first
#define se second
#define mid ((l+r+1)>>1)
#define pb push_back

using namespace std;
using vi = vector<int>;


vi coin_flips(vi b, int c) {
	int x=0;
	rep(i,0,64) x^=(b[i]*i);
	return {x^c};
}

int find_coin(vi b) {
	int x=0;
	rep(i,0,64) x^=(b[i]*i);
	return x;
}
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