제출 #349380

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
349380	2021-01-17 13:22:55	phathnv	Mountains (NOI20_mountains)	C++11	100 / 100	120 ms	10732 KiB

Mountains

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = 3e5 + 1;
struct FenwickTree{
    int d[N];
    void update(int x){
        for(; x < N; x += x & -x)
            d[x]++;
    }
    int get(int x){
        int res = 0;
        for(; x > 0; x -= x & -x)
            res += d[x];
        return res;
    }
    int getRange(int l, int r){
        assert(l <= r);
        return get(r) - get(l - 1);
    }
} bit;
int n, ind[N];
ll a[N];
void ReadInput(){
 
 
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