Submission #884120

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
884120	2023-12-06 16:00:40	vjudge1	Bubble Sort 2 (JOI18_bubblesort2)	C++17	22 / 100	246 ms	26996 KiB

bubblesort2

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#include<bits/stdc++.h>
#include <bubblesort2.h>
using namespace std;
const int N = 5e5;
const int M = 100;
vector <int> a;
vector <int> v2;
vector <int> x;
class fenwick{
    int fen[N];
    int n;
public:
    void init(int sz){
        n = sz;
        for(int i = 0;i < n;i++)fen[i] = 0;
    }
    void add(int pos){
        for(int i = pos;i >= 0;i&=(i + 1),i--){
            fen[i]++;
        }
    }
    int get(int pos){
        int r = 0;
        for(int i = pos;i < n;i|=(i + 1)){
            r+=fen[i];
        }
        return r;
    }
};
int fen2[N][M];
 
 
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• Subtask 2: 0 / 21
• Subtask 3: 22 / 22
• Subtask 4: 0 / 40