oj.uz

Submission #228044

# Submission time Handle Problem Language Result Execution time Memory
228044 2020-04-29T16:25:28 Z AaronNaidu Ancient Books (IOI17_books) C++14
50 / 100
 163 ms 18936 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int pos[1000001];

ll minimum_walk(vector<int> p, int s) {
    int trueLength = p.size();
    for (int i = 0; i < p.size(); i++)
    {
        pos[p[i]] = i;
    }
    
    for (int i = p.size() - 1; i >= 0; i--)
    {
        if (p[i] == i)
        {
            trueLength--;
        }
        else
        {
            break;
        }
    }
    ll toRet = 0;
    int startPoint = 0;
    int maxSoFar = -1;
    int groups = 0;
    for (int i = 0; i < trueLength; i++)
    {
        toRet += abs(i - p[i]);
        maxSoFar = max(maxSoFar, p[i]);
        if (maxSoFar == i)
        {
        //    cout << "Breaking at " << i << "\n";
            groups++;
            if (i < trueLength - 1)
            {
               // cout << "Adding " << abs(pos[startPoint] - (i+1)) << " for travelling\n";
                //toRet += abs(pos[startPoint] - (i+1));
                startPoint = i+1;
            }
            else
            {
                //cout << "Adjustment adding " << abs(startPoint - p[startPoint]) << " for " << startPoint << "\n";
                //toRet += abs(pos[startPoint] - p[pos[startPoint]]);
            }
            
        }
    }
    //cout << "Adding " << startPoint << " at end\n";
    //toRet += startPoint;
    if (groups == 0)
    {
        groups++;
    }
    
    toRet += 2 * (groups - 1);
    return toRet;
}

Compilation message

books.cpp: In function 'll minimum_walk(std::vector<int>, int)':
books.cpp:9:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < p.size(); i++)
                     ~~^~~~~~~~~~
books.cpp:26:9: warning: variable 'startPoint' set but not used [-Wunused-but-set-variable]
     int startPoint = 0;
         ^~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 4 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 4 ms 256 KB Output is correct
11 Correct 5 ms 256 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 5 ms 256 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 4 ms 256 KB Output is correct
16 Correct 5 ms 256 KB Output is correct
17 Correct 5 ms 256 KB Output is correct
18 Correct 4 ms 256 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 4 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 4 ms 256 KB Output is correct
11 Correct 5 ms 256 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 5 ms 256 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 4 ms 256 KB Output is correct
16 Correct 5 ms 256 KB Output is correct
17 Correct 5 ms 256 KB Output is correct
18 Correct 4 ms 256 KB Output is correct
19 Correct 5 ms 256 KB Output is correct
20 Correct 5 ms 256 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 4 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 4 ms 256 KB Output is correct
11 Correct 5 ms 256 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 5 ms 256 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 4 ms 256 KB Output is correct
16 Correct 5 ms 256 KB Output is correct
17 Correct 5 ms 256 KB Output is correct
18 Correct 4 ms 256 KB Output is correct
19 Correct 5 ms 256 KB Output is correct
20 Correct 5 ms 256 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 163 ms 12024 KB Output is correct
31 Correct 159 ms 18808 KB Output is correct
32 Correct 145 ms 18748 KB Output is correct
33 Correct 147 ms 18808 KB Output is correct
34 Correct 149 ms 18808 KB Output is correct
35 Correct 140 ms 18740 KB Output is correct
36 Correct 147 ms 18808 KB Output is correct
37 Correct 162 ms 18808 KB Output is correct
38 Correct 145 ms 18744 KB Output is correct
39 Correct 144 ms 18808 KB Output is correct
40 Correct 154 ms 18808 KB Output is correct
41 Correct 157 ms 18808 KB Output is correct
42 Correct 157 ms 18808 KB Output is correct
43 Correct 144 ms 18936 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 384 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 5 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 4 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 4 ms 256 KB Output is correct
11 Correct 5 ms 256 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 5 ms 256 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 4 ms 256 KB Output is correct
16 Correct 5 ms 256 KB Output is correct
17 Correct 5 ms 256 KB Output is correct
18 Correct 4 ms 256 KB Output is correct
19 Correct 5 ms 256 KB Output is correct
20 Correct 5 ms 256 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 163 ms 12024 KB Output is correct
31 Correct 159 ms 18808 KB Output is correct
32 Correct 145 ms 18748 KB Output is correct
33 Correct 147 ms 18808 KB Output is correct
34 Correct 149 ms 18808 KB Output is correct
35 Correct 140 ms 18740 KB Output is correct
36 Correct 147 ms 18808 KB Output is correct
37 Correct 162 ms 18808 KB Output is correct
38 Correct 145 ms 18744 KB Output is correct
39 Correct 144 ms 18808 KB Output is correct
40 Correct 154 ms 18808 KB Output is correct
41 Correct 157 ms 18808 KB Output is correct
42 Correct 157 ms 18808 KB Output is correct
43 Correct 144 ms 18936 KB Output is correct
44 Incorrect 5 ms 384 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45 Halted 0 ms 0 KB -