Submission #1085905

#	Time	Username	Problem	Language	Result	Execution time	Memory
1085905		RiverFlow	Intercastellar (JOI22_ho_t1)	C++14	100 / 100	57 ms	11720 KiB

Main

#include <bits/stdc++.h>

#define nl "\n"
#define no "NO"
#define yes "YES"
#define fi first
#define se second
#define vec vector
#define task "main"
#define _mp make_pair
#define ii pair<int, int>
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define evoid(val) return void(std::cout << val)
#define FOR(i, a, b) for(int i = (a); i <= (b); ++i)
#define FOD(i, b, a) for(int i = (b); i >= (a); --i)
#define unq(x) sort(all(x)); x.resize(unique(all(x)) - x.begin())

using namespace std;

template<typename U, typename V> bool maxi(U &a, V b) {
    if (a < b) { a = b; return 1; } return 0;
}
template<typename U, typename V> bool mini(U &a, V b) {
    if (a > b) { a = b; return 1; } return 0;
}

const int N = (int)2e5 + 9;
const int mod = (int)1e9 + 7;

void prepare(); void main_code();

int main() {
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    if (fopen(task".inp", "r")) {
        freopen(task".inp", "r", stdin);
        freopen(task".out", "w", stdout);
    }
    const bool MULTITEST = 0; prepare();
    int num_test = 1; if (MULTITEST) cin >> num_test;
    while (num_test--) { main_code(); }
}

void prepare() {};

int n, q, a[N];
long long s[N];

void main_code() {
    cin >> n;
    for(int i = 1; i <= n; ++i) cin >> a[i];
    vector<pair<int, long long>> res;
    FOD(i, n, 1) {
        int val = a[i];
        long long cnt = 1;
        while (val % 2 == 0) {
            cnt *= 2LL, val /= 2;
        }
        res.push_back(_mp(val, cnt));
    }
    const long long LIM = (long long)1e16;
    reverse(all(res));
    for(int i = 0; i < n; ++i) {
        s[i] = s[i - 1] + res[i].second;
        if (s[i] > LIM) s[i] = LIM;
    }
    cin >> q;

    while (q--) {
        long long x; cin >> x;
        int j = lower_bound(s, s + n, x) - s;
        cout << res[j].first << nl;
    }
}


/*     Let the river flows naturally     */

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:36:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |         freopen(task".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:37:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |         freopen(task".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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