Submission #297585

#TimeUsernameProblemLanguageResultExecution timeMemory
297585pit4hBubble Sort 2 (JOI18_bubblesort2)C++14
38 / 100
9090 ms2432 KiB
#include "bubblesort2.h"
#include<bits/stdc++.h>
using namespace std;

struct Dynamic_segtree {

};
vector<int> countScans(vector<int> a, vector<int> x, vector<int> v){
	int q = x.size();
	int n = a.size();
	vector<int> answer(q);
	vector<int> inv(n);
	for(int i=0; i<n; ++i) {
		for(int j=i+1; j<n; ++j) {
			if(a[i] > a[j]) {
				inv[j]++;
			}
		}
	}
	for(int i=0; i<q; ++i) {
		int old = a[x[i]];
		a[x[i]] = v[i];
		inv[x[i]] = 0;
		for(int j=0; j<x[i]; ++j) {
			if(a[j] > a[x[i]]) {
				inv[x[i]]++;
			}
		}
		for(int j=x[i]+1; j<n; ++j) {
			if(a[x[i]] > a[j] && old <= a[j]) {
				inv[j]++;
			}
			if(a[x[i]] <= a[j] && old > a[j]) {
				inv[j]--;
			}
		}
		for(int j=0; j<n; ++j) {
			answer[i] = max(answer[i], inv[j]);
		}
	}
	return answer;
}
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