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Submission #977396

# Submission time Handle Problem Language Result Execution time Memory
977396 2024-05-07T21:15:39 Z mariaclara Ancient Books (IOI17_books) C++17
0 / 100
 1 ms 348 KB 
#include "books.h"
#include<bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int,int> pii;
#define all(x) x.begin(), x.end()
#define sz(x) (int)x.size()
#define mk make_pair
#define pb push_back
#define fr first
#define sc second

ll minimum_walk(vector<int> p, int s) {
	int n = sz(p);
	vector<bool> vis(n,0);
	vector<pii> aux, range;

	ll ans = 0;
	for(int i = 0; i  < n; i++) {
		int x = i, m = i;
		while(!vis[x]) {
			vis[x] = 1;
			x = p[x];
			m = max(m, x);
		}

		ans += abs(p[i]-i);
		if(i != m) aux.pb({i,m});
	}

	//cout << "ok" << endl;

	for(int i = 0; i < sz(aux);) {
		int l = aux[i].fr, r = aux[i].sc, j = i;
		while(j < sz(aux) and aux[j].fr <= r) {
			//cout << i << " " << j << " " << l << " " << r << endl;
			r = max(r, aux[j].sc);
			j++;
		}
		i=j;
		range.pb({l,r});
	}

	//cout << "ok" << endl;

	for(int i = 1; i < sz(range); i++)
		ans += 2*(range[i].fr - range[i-1].sc);

	int dist = n;
	for(int i = 0; i < n; i++) 
		if(p[i] != i) dist = min(dist, abs(s-i));

	return ans * 2*(dist%n);
}

Subtask #1
0 / 12.0

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

Subtask #2
0 / 10.0

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

Subtask #3
0 / 28.0

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

Subtask #5
0 / 30.0

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