Submission #620080

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
620080	2022-08-02 21:58:15	serize	Arranging Shoes (IOI19_shoes)	C++17	30 / 100	48 ms	6352 KiB

shoes

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#include "shoes.h"
#include <bits/stdc++.h>
#include <cstdio>
#include <cassert>
#define all(x) x.begin(),x.end()
#define lowbit(x) x&(-x)
using namespace std;
const int NMAX = 4e5+2;
vector<int> fenwick(NMAX);
inline void add(int k, int v){
    if(k <= 0) return;
    while(k < NMAX){
        fenwick[k] += v;
        k += lowbit(k);
    }
}
inline int read(int k){
    int sum = 0;
    while(k > 0){
        sum+=fenwick[k];
        k -= lowbit(k);
    }
    return sum;
}
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 15