Submission #910062

#	Time	Username	Problem	Language	Result	Execution time	Memory
910062		vjudge1	Group Photo (JOI21_ho_t3)	C++17	0 / 100	1 ms	344 KiB

Main

#include <bits/stdc++.h>
using namespace std;

int main() {
	int n;
	cin>>n;
	vector<int>h(n);
	for(int i=0;i<n;i++)cin>>h[i];
	vector<int>pos(n+1);
	for(int i=0;i<n;i++){
		pos[h[i]]=i;
	}
	int swaps=0;
	for(int i=0;i<n;i++){
		for(int j=0;j<n-1-i;j++){
			if((h[j]+2*pos[h[j]])>(h[j+1]+2*pos[h[j+1]])){
				swap(pos[h[j]],pos[h[j+1]]);
				swaps++;
			}
		}
	}
	cout<<swaps<<"\n";
	return 0;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 7
• Subtask 3: 0 / 32
• Subtask 4: 0 / 20
• Subtask 5: 0 / 36