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Submission #105444

# Submission time Handle Problem Language Result Execution time Memory
105444 2019-04-12T11:25:23 Z Alexa2001 Ancient Books (IOI17_books) C++17
0 / 100
 3 ms 1280 KB 
#include <bits/stdc++.h>
#include "books.h"

using namespace std;

typedef long long ll;

const int Nmax = 1e6 + 5;

bool used[Nmax];

int mdl(int x) { return (x > 0 ? x : -x); }

ll minimum_walk(vector<int> p, int s)
{
    int n = p.size();
    int i, last = 0;
    ll ans = 0;

    memset(used, 0, sizeof(used));

    for(i=0; i<n; ++i)
        if(!used[i])
        {
            int x = i;
            do
            {
                ans += mdl(x - p[x]);
                used[x] = 1;
                x = p[x];
            }
            while(x != i);

            if(i != p[i]) last = i;
        }

    ans += 2 * last;
    return ans;
}

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1280 KB Output is correct
2 Correct 3 ms 1280 KB Output is correct
3 Correct 3 ms 1280 KB Output is correct
4 Correct 3 ms 1280 KB Output is correct
5 Correct 3 ms 1280 KB Output is correct
6 Incorrect 3 ms 1280 KB 3rd lines differ - on the 1st token, expected: '8', found: '10'
7 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1280 KB Output is correct
2 Correct 3 ms 1280 KB Output is correct
3 Correct 3 ms 1280 KB Output is correct
4 Correct 3 ms 1280 KB Output is correct
5 Correct 3 ms 1280 KB Output is correct
6 Incorrect 3 ms 1280 KB 3rd lines differ - on the 1st token, expected: '8', found: '10'
7 Halted 0 ms 0 KB -

Subtask #3
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1280 KB Output is correct
2 Correct 3 ms 1280 KB Output is correct
3 Correct 3 ms 1280 KB Output is correct
4 Correct 3 ms 1280 KB Output is correct
5 Correct 3 ms 1280 KB Output is correct
6 Incorrect 3 ms 1280 KB 3rd lines differ - on the 1st token, expected: '8', found: '10'
7 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 1280 KB 3rd lines differ - on the 1st token, expected: '3304', found: '4728'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1280 KB Output is correct
2 Correct 3 ms 1280 KB Output is correct
3 Correct 3 ms 1280 KB Output is correct
4 Correct 3 ms 1280 KB Output is correct
5 Correct 3 ms 1280 KB Output is correct
6 Incorrect 3 ms 1280 KB 3rd lines differ - on the 1st token, expected: '8', found: '10'
7 Halted 0 ms 0 KB -