Submission #683103

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
683103	2023-01-17 16:58:39	nutella	Abracadabra (CEOI22_abracadabra)	C++17	100 / 100	621 ms	47360 KiB

Main

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#include <bits/stdc++.h>
using namespace std;
struct Fenwick {
    vector<int> t;
    int n, S = 0;
    Fenwick() = default;
    Fenwick(int n) : n(n), t(n + 1) {}
    void modify(int i, int v) {
        S += v;
        for (int x = i + 1; x <= n; x += x & -x) {
            t[x] += v;
        }
    }
    int sum(int i) {
        int ans = 0;
        for (int x = i + 1; x > 0; x -= x & -x) {
            ans += t[x];
        }
        return ans;
    }
    int lower_bound(int k) {
        int x = 0;
        for (int i = 1 << __lg(n); i > 0; i >>= 1) {
 
 
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Compilation message (stderr)

Main.cpp: In constructor 'Fenwick::Fenwick(int)':
Main.cpp:7:9: warning: 'Fenwick::n' will be initialized after [-Wreorder]
    7 |     int n, S = 0;
      |         ^
Main.cpp:6:17: warning:   'std::vector<int> Fenwick::t' [-Wreorder]
    6 |     vector<int> t;
      |                 ^
Main.cpp:11:5: warning:   when initialized here [-Wreorder]
   11 |     Fenwick(int n) : n(n), t(n + 1) {}
      |     ^~~~~~~
Main.cpp: In function 'int main()':
Main.cpp:87:65: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   87 |             mx[l][i] = comp(mx[l - 1][i], mx[l - 1][i + (1 << l - 1)]);
      |                                                               ~~^~~

• Subtask 1: 10 / 10
• Subtask 2: 40 / 40
• Subtask 3: 25 / 25
• Subtask 4: 25 / 25