Submission #322161

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
322161	2020-11-14 07:19:09	12tqian	Rectangles (IOI19_rect)	C++17	72 / 100	5096 ms	901984 KiB

rect

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#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
#include "rect.h"
#include<bits/stdc++.h>
using namespace std;
 
#define eb emplace_back
#define pb push_back
#define sz(x) int(x.size())
#define all(x) (x).begin(), (x).end()
 
template<class T> struct BIT {
    vector<T> bit;
    int n;
    
    void init(int n_) {
        n = n_;
        bit.resize(n);
    }
    
    T sum(int r) {
        T ret = 0;
        for (; r >= 0; r = (r & (r + 1)) - 1) ret += bit[r];
        return ret;
    }
    
    T sum(int l, int r) {
        return sum(r) - sum(l - 1);
    }
 
 
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