제출 #870026

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
870026	2023-11-06 16:30:17	Pannda	Group Photo (JOI21_ho_t3)	C++17	100 / 100	329 ms	98804 KiB

Main

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#include <bits/stdc++.h>
using namespace std;
const int INF = (int)1e9 + 123456;
struct Fenwick {
    int n;
    vector<int> bit;
    Fenwick(int n) : n(n), bit(n + 1, 0) {}
    void add(int i, int delta) {
        for (i++; i <= n; i += i & -i) {
            bit[i] += delta;
        }
    }
    int sum(int i) {
        int res = 0;
        for (; i > 0; i -= i & -i) {
            res += bit[i];
        }
        return res;
    }
};
int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
 
 
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