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Submission #1048301

# Submission time Handle Problem Language Result Execution time Memory
1048301 2024-08-08T06:33:58 Z LittleOrange Ancient Books (IOI17_books) C++17
0 / 100
 0 ms 600 KB 
#include "books.h"
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
long long minimum_walk(std::vector<int> p, int s) {
	ll ans = 0;
	ll n = p.size();
	/*
	if (s == 0){
		vector<ll> u(n,0);
		for(ll i = 0;i<n;i++){
			if(p[i]!=i){
				ans += i-s;
				s = i;
				ll x = i;
				do{
					ans += abs(p[x]-x);
					ll y = x;
					x = p[x];
					p[y] = y;
				} while(x!=i);
			}
		}
		ans += s;
	}*/
	ll gpc = 0;
	vector<ll> gp(n,-1);
	vector<vector<ll>> gps;
	for(ll i = 0;i<n;i++){
		if (gp[i]==-1){
			ll cur = gpc++;
			gps.emplace_back();
			ll x = i;
			do{
				gp[x] = cur;
				gps[cur].push_back(x);
				ans += abs(p[x]-x);
				x = p[x];
			} while(x!=i);
		}
	}
	ans += (gpc-1)*2;
	for(ll i = 0;i<n;i++){
		if (p[i]==i&&i<s) ans-=2;
		else break;
	}
	for(ll i = n-1;i>=0;i--){
		if (p[i]==i&&i>s) ans-=2;
		else break;
	}
	return ans;
}

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Incorrect 0 ms 348 KB 3rd lines differ - on the 1st token, expected: '6', found: '8'
3 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Incorrect 0 ms 348 KB 3rd lines differ - on the 1st token, expected: '6', found: '8'
3 Halted 0 ms 0 KB -

Subtask #3
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Incorrect 0 ms 348 KB 3rd lines differ - on the 1st token, expected: '6', found: '8'
3 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB 3rd lines differ - on the 1st token, expected: '3304', found: '4186'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Incorrect 0 ms 348 KB 3rd lines differ - on the 1st token, expected: '6', found: '8'
3 Halted 0 ms 0 KB -