제출 #1078616

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1078616		quangminh412	Intercastellar (JOI22_ho_t1)	C++14	100 / 100	55 ms	10852 KiB

Main

#include <bits/stdc++.h>
using namespace std;

/*
  John Watson
  https://codeforces.com/profile/quangminh98

  Mua Code nhu mua Florentino !!
*/

#define faster() ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define ll long long

const int maxn = 2e5 + 9;

int n, q;
ll a[maxn];
pair<int, ll> b[maxn];

pair<int, ll> compute(int x)
{
	ll p = 1;
	
	while (x % 2 == 0)
	{
		p = p * 2;
		x /= 2;
	}
	
	return {x, p};
}

signed main()
{
	if (fopen("test.inp", "r"))
	{
		freopen("test.inp", "r", stdin);
		freopen("test.out", "w", stdout);
	}
	faster();

	cin >> n;
	for (int i = 1; i <= n; i++)
	{
		cin >> a[i];
		b[i] = compute(a[i]);
	}
	for (int i = 1; i <= n; i++)
		a[i] = a[i - 1] + b[i].second;

	cin >> q;
	while (q--)
	{
		ll x; cin >> x;
		
		int pos = lower_bound(a + 1, a + n + 1, x) - a;
		
		cout << b[pos].first << '\n';
	}

	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'int main()':
Main.cpp:37:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |   freopen("test.inp", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:38:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |   freopen("test.out", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 25 / 25
• Subtask 2: 35 / 35
• Subtask 3: 40 / 40