oj.uz

Submission #66138

# Submission time Handle Problem Language Result Execution time Memory
66138 2018-08-09T20:24:42 Z Eae02 Shortcut (IOI16_shortcut) C++14
0 / 100
 3 ms 432 KB 
#include "shortcut.h"

#include <bits/stdc++.h>

using ll = long long;

std::vector<ll> distBefore;

ll mainLineDist(int a, int b)
{
    if (a > b)
        std::swap(a, b);
    if (a == b)
        return 0;
    return distBefore[b - 1] - ((a == 0) ? 0 : distBefore[a - 1]);
}

long long find_shortcut(int n, std::vector<int> l, std::vector<int> d, int c)
{
    distBefore.resize(n - 1);
    ll distAcc = 0;
    for (int i = 0; i < l.size(); i++)
    {
        distAcc += l[i];
        distBefore[i] = distAcc;
    }
    
    ll ans = INT64_MAX;
    
    ll md0 = 0;
    for (ll u = 0; u < n; u++)
    {
        for (ll v = u + 1; v < n; v++)
        {
            ll e = d[u] + d[v];
            ll minThis = INT64_MAX;
            minThis = std::min(minThis, mainLineDist(u, v) + e);
            md0 = std::max(md0, minThis);
        }
    }
    ans = std::min(ans, md0);
    
    for (ll a = 0; a < n; a++)
    {
        for (ll b = a + 2; b < n; b++)
        {
            ll md = 0;
            
            for (ll u = 0; u < n; u++)
            {
                for (ll v = u + 1; v < n; v++)
                {
                    ll e = d[u] + d[v];
                    ll minThis = INT64_MAX;
                    minThis = std::min(minThis, mainLineDist(u, v) + e);
                    minThis = std::min(minThis, mainLineDist(u, a) + mainLineDist(v, b) + e + c);
                    minThis = std::min(minThis, mainLineDist(u, b) + mainLineDist(v, a) + e + c);
                    md = std::max(md, minThis);
                }
            }
            
            ans = std::min(ans, md);
        }
    }
    
    return ans;
}

Compilation message

shortcut.cpp: In function 'long long int find_shortcut(int, std::vector<int>, std::vector<int>, int)':
shortcut.cpp:22:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < l.size(); i++)
                     ~~^~~~~~~~~~

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB n = 4, 80 is a correct answer
2 Correct 3 ms 356 KB n = 9, 110 is a correct answer
3 Incorrect 2 ms 432 KB n = 4, incorrect answer: jury 21 vs contestant 22
4 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB n = 4, 80 is a correct answer
2 Correct 3 ms 356 KB n = 9, 110 is a correct answer
3 Incorrect 2 ms 432 KB n = 4, incorrect answer: jury 21 vs contestant 22
4 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB n = 4, 80 is a correct answer
2 Correct 3 ms 356 KB n = 9, 110 is a correct answer
3 Incorrect 2 ms 432 KB n = 4, incorrect answer: jury 21 vs contestant 22
4 Halted 0 ms 0 KB -

Subtask #4
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB n = 4, 80 is a correct answer
2 Correct 3 ms 356 KB n = 9, 110 is a correct answer
3 Incorrect 2 ms 432 KB n = 4, incorrect answer: jury 21 vs contestant 22
4 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB n = 4, 80 is a correct answer
2 Correct 3 ms 356 KB n = 9, 110 is a correct answer
3 Incorrect 2 ms 432 KB n = 4, incorrect answer: jury 21 vs contestant 22
4 Halted 0 ms 0 KB -

Subtask #6
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB n = 4, 80 is a correct answer
2 Correct 3 ms 356 KB n = 9, 110 is a correct answer
3 Incorrect 2 ms 432 KB n = 4, incorrect answer: jury 21 vs contestant 22
4 Halted 0 ms 0 KB -

Subtask #7
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB n = 4, 80 is a correct answer
2 Correct 3 ms 356 KB n = 9, 110 is a correct answer
3 Incorrect 2 ms 432 KB n = 4, incorrect answer: jury 21 vs contestant 22
4 Halted 0 ms 0 KB -

Subtask #8
0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB n = 4, 80 is a correct answer
2 Correct 3 ms 356 KB n = 9, 110 is a correct answer
3 Incorrect 2 ms 432 KB n = 4, incorrect answer: jury 21 vs contestant 22
4 Halted 0 ms 0 KB -