Submission #1122743

#	Time	Username	Problem	Language	Result	Execution time	Memory
1122743		gdragon	Intercastellar (JOI22_ho_t1)	C++20	100 / 100	262 ms	6100 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define TASK "long"
#define fi first
#define se second
#define ll long long
#define pb push_back
#define ALL(x) (x).begin(), (x).end()
#define GETBIT(mask, i) ((mask) >> (i) & 1)
#define MASK(i) ((1LL) << (i))
#define SZ(x) ((int)(x).size())
#define mp make_pair
#define CNTBIT(mask) __builtin_popcount(mask)
template<class X, class Y> bool maximize(X &x, Y y){ if (x < y) {x = y; return true;} return false;};
template<class X, class Y> bool minimize(X &x, Y y){ if (x > y) {x = y; return true;} return false;};
typedef pair<int, int> ii;
const int N = 2e5 + 5;
const int inf = 1e9 + 7;
const long long INF = (long long)1e18 + 7;
const int mod = 1e9 + 7;
void add(int &x, int y) {x += y; if (x >= mod) x -= mod;}
void sub(int &x, int y) {x -= y; if (x < 0) x += mod;}
int mul(int x, int y) {return 1LL * x * y % mod;}
// -----------------------------------------//
struct Fenwick {
    int n;
    vector<long long> v;
    Fenwick(int _n = 0) {
        n = _n;
        v.assign(n + 2, 0);
    }
    void update(int x, int c) {
        for(; x <= n; x += x & -x) v[x] += c; 
    }
    long long get(int x) {
        int ans = 0;
        for(; x > 0; x -= x & -x) ans += v[x];
        return ans;
    }
} fw;
int n, q;
int a[N];
long long pref[N];
void read() {
    cin >> n;
    for(int i = 1; i <= n; i++) cin >> a[i];
}
void solve() {
    fw = Fenwick(n);
    for(int i = 1; i <= n; i++) {
        int ans = 1;
        while(a[i] % 2 == 0) {
            a[i] /= 2;
            ans *= 2;
        }
        // fw.update(i, ans);
        pref[i] = ans;
    }
    for(int i = 1; i <= n; i++) pref[i] += pref[i - 1];
    cin >> q;
    int i = 1;
    while(q--) {
        long long x; cin >> x;
        while(pref[i] < x) ++i;
        cout << a[i] << endl;
    }
}
signed main() {
    ios_base::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);
    }
    int test = 1;
    // cin >> test;
    while(test--) {
        read();
        solve();
    }
    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:71:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   71 |         freopen(TASK".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:72:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   72 |         freopen(TASK".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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