Submission #1296207

#	Time	Username	Problem	Language	Result	Execution time	Memory
1296207		thaibeo123	Intercastellar (JOI22_ho_t1)	C++20	100 / 100	53 ms	5384 KiB

Main

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

#define NAME "A"
#define ll long long
#define fi first
#define se second
#define pb push_back
#define all(x) x.begin(), x.end()
#define MASK(x) (1ll << (x))
#define BIT(x, i) (((x) >> (i)) & 1)

const int N = 2e5 + 5;

int n, q;
ll pre[N];
pair<int, int> b[N];

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

void input() {
    cin >> n;
    for (int i = 1; i <= n; i++) {
        int x;
        cin >> x;
        b[i] = odd(x);
        pre[i] = pre[i - 1] + b[i].fi;
    }
}

void solve() {
    cin >> q;
    while (q--) {
        ll pos;
        cin >> pos;
        int x = lower_bound(pre + 1, pre + 1 + n, pos) - pre;
        cout << b[x].se << "\n";
    }
}

signed main() {
    if (fopen(NAME".INP", "r")) {
        freopen(NAME".INP", "r", stdin);
        freopen(NAME".OUT", "w", stdout);
    }
    cin.tie(0)->sync_with_stdio(0);

    int t = 1;
    //cin >> t;
    while (t--) {
        input();
        solve();
    }

    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:50:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   50 |         freopen(NAME".INP", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:51:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   51 |         freopen(NAME".OUT", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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