제출 #1266619

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1266619		tminh	Intercastellar (JOI22_ho_t1)	C++20	100 / 100	44 ms	5448 KiB

Main

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

#define task ""
#define ll long long
#define endl '\n'
#define fi first
#define se second
#define vall(a) (a).begin(), (a).end()
#define sze(a) (int)a.size()
#define pii pair<int, int>
#define pll pair<ll, ll>


#define ep emplace_back
#define pb push_back
#define pf push_front


const ll mod = 1e9 + 7;
const int N = 1e6 + 5;
const ll oo = 1e18;

bool START;
// so lan doc sol roi moi biet lam :

ll n, a[N], q, pos[N];

inline void solve() {
	for (int i = 1; i <= n; ++i) {
		ll cur = 1;
		while(!(a[i] & 1)) {
			a[i] >>= 1;
			cur <<= 1ll;
		}
		// cout << a[i] << " " << cur << endl;
		pos[i] = pos[i - 1] + cur;
	}
	while(q--) {
		ll x;
		cin >> x;
		auto it = lower_bound(pos + 1, pos + 1 + n, x) - pos;
		cout << a[it] << endl; 
	}
}


inline void input() {
    cin >> n;
    for (int i = 1; i <= n; ++i) cin >> a[i];
    cin >> q;
    return solve();
    
}
bool END;

int main() {
    if(fopen(task ".inp", "r")) {
        freopen(task ".inp", "r", stdin);
        freopen(task ".out", "w", stdout);
    }
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr); cout.tie(nullptr);

    input();
    
    
    cerr << endl << "Time elapsed: " << 1.0 * clock() / CLOCKS_PER_SEC << 's' << endl;
    cerr << "Memory: " << fabs ((&END - &START)) / 1048576.0 << "MB\n";
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'int main()':
Main.cpp:59:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   59 |         freopen(task ".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:60:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   60 |         freopen(task ".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

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