oj.uz

Submission #390491

# Submission time Handle Problem Language Result Execution time Memory
390491 2021-04-16T07:42:41 Z Keshi Ancient Books (IOI17_books) C++17
0 / 100
 1 ms 332 KB 
//In the name of God
#include <bits/stdc++.h>
#include "books.h"
using namespace std;

typedef long long ll;
typedef pair<ll, ll> pll;

const ll maxn = 2e5 + 100;
const ll mod = 1e9 + 7;
const ll inf = 1e18;

#define pb push_back
#define Mp make_pair
#define F first
#define S second
#define Sz(x) ll((x).size())
#define all(x) (x).begin(), (x).end()

ll a[maxn], b[maxn];

long long minimum_walk(vector<int> p, int s){
	ll n = Sz(p);
	for(ll i = 0; i < n; i++){
		if(p[i] > i){
			for(ll j = i; j < p[i]; j++){
				a[j]++;
			}
		}
		else{
			for(ll j = i; j > p[i]; j--){
				b[j - 1]++;
			}
		}
	}
	ll m = n;
	while(m && a[m - 1] == m - 1) m--;
	ll ans = 0;
	for(ll i = 0; i < m - 1; i++){
		ans += max(1ll, max(a[i], b[i]));
	}
	return ans * 2;
}

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 304 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Incorrect 1 ms 204 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 304 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Incorrect 1 ms 204 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -

Subtask #3
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 304 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Incorrect 1 ms 204 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 332 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 304 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Incorrect 1 ms 204 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -