Submission #916624

#	Time	Username	Problem	Language	Result	Execution time	Memory
916624		tuannm	Intercastellar (JOI22_ho_t1)	C++17	100 / 100	66 ms	10836 KiB

Main

#include<bits/stdc++.h>
#define ii pair<int, int>
#define ll pair<long long, long long>
#define fi first
#define se second
#define pb push_back
using namespace std;
const int mod[2] = {1000000007, 998244353};
const int N = 2e5 + 1;
const string NAME = "";
const int lim = 2147483647;
//const unsigned int lim = 4294967295;
//const long long lim = 9223372036854775807;
//const unsigned long long lim = 18446744073709551615;
const int mset = 0x3f;
const double pi = acos(-1);
int n, q;
ll a[N];
long long sum[N];

void inp(){
    cin >> n;
    for(int i = 1; i <= n; ++i){
        cin >> a[i].fi;
        a[i].se = 1;
        while(a[i].fi % 2 == 0){
            a[i].se *= 2;
            a[i].fi /= 2;
        }
        sum[i] = sum[i - 1] + a[i].se;
    }
    cin >> q;
}

void solve(){
    while(q--){
        long long x;
        cin >> x;
        int l = 1, r = n, ans = n;
        while(l <= r){
            int mid = (l + r) / 2;
            if(sum[mid] >= x){
                ans = mid;
                r = mid - 1;
            }
            else l = mid + 1;
        }
        cout << a[ans].fi << "\n";
    }
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    if(fopen((NAME + ".inp").c_str(), "r")){
        freopen((NAME + ".inp").c_str(), "r", stdin);
        freopen((NAME + ".out").c_str(), "w", stdout);
    }

    inp();
    solve();
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:58:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   58 |         freopen((NAME + ".inp").c_str(), "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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((NAME + ".out").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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