5117 2023. 04. 18 02:38:35 tomi7 Rendező robot (80 pont) cpp11 Wrong answer 3/80 71ms 6240 KiB 
// Source: https://usaco.guide/general/io

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

int main() {
	int n;
	cin>>n;
	vector<int> a(n);
	int valasz1=0, valasz2=0;
	for(int i=0;i<n;i++){
		cin>>a[i];
		if(a[i]==i+1 && a[i]>n/2){
			valasz2++;
		}else if(a[i]==i+1 && a[i]<n/2) valasz1++;
		else if(a[i]==i+1 && a[i]==n/2){
			if(valasz1<=valasz2) valasz1++;
			else valasz2++; 
		}
	}
	if(valasz1>=valasz2){
		cout<<valasz1*2-1<<'\n';
	}else{
		cout<<valasz2*2<<'\n';
	}
}
Subtask Sum Test Verdict Time Memory
base 3/80
1 Wrong answer 0/0 3ms 1808 KiB
2 Wrong answer 0/0 3ms 1900 KiB
3 Wrong answer 0/2 2ms 2104 KiB
4 Accepted 3/3 3ms 2320 KiB
5 Wrong answer 0/3 3ms 2532 KiB
6 Wrong answer 0/2 3ms 2752 KiB
7 Wrong answer 0/2 3ms 2832 KiB
8 Wrong answer 0/2 3ms 2940 KiB
9 Wrong answer 0/2 3ms 3072 KiB
10 Wrong answer 0/2 3ms 3276 KiB
11 Wrong answer 0/2 3ms 3364 KiB
12 Wrong answer 0/2 3ms 3360 KiB
13 Wrong answer 0/2 3ms 3252 KiB
14 Wrong answer 0/2 3ms 3256 KiB
15 Wrong answer 0/2 3ms 3364 KiB
16 Wrong answer 0/2 3ms 3256 KiB
17 Wrong answer 0/2 3ms 3492 KiB
18 Wrong answer 0/4 68ms 4940 KiB
19 Wrong answer 0/4 68ms 5024 KiB
20 Wrong answer 0/4 71ms 5028 KiB
21 Wrong answer 0/4 68ms 5112 KiB
22 Wrong answer 0/4 68ms 5240 KiB
23 Wrong answer 0/4 71ms 5364 KiB
24 Wrong answer 0/4 68ms 5576 KiB
25 Wrong answer 0/4 68ms 5660 KiB
26 Wrong answer 0/4 70ms 5880 KiB
27 Wrong answer 0/4 68ms 6240 KiB
28 Wrong answer 0/4 68ms 6128 KiB
29 Wrong answer 0/4 68ms 6132 KiB