oj.uz

답안 #143777

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
143777 2019-08-15T04:39:42 Z jwvg0425 Arranging Shoes (IOI19_shoes) C++17
45 / 100
 119 ms 20856 KB 
#include "shoes.h"
#include <set>

std::set<int> minus[100005];
std::set<int> plus[100005];

long long count_swaps(std::vector<int> s) {
    std::vector<bool> used(s.size(), false);

    long long ans = 0;
    long long useCount = 0;

    for (int i = 0; i < s.size(); i++)
    {
        if (s[i] > 0)
            plus[s[i]].insert(i);
        else
            minus[-s[i]].insert(i);
    }

    for (int i = 0; i < s.size(); i++)
    {
        if (used[i])
        {
            useCount--;
            continue;
        }

        if (s[i] > 0)
        {
            int near = *minus[s[i]].lower_bound(i);
            minus[s[i]].erase(near);
            used[near] = true;
            ans += near - i - useCount;
        }
        else
        {
            int near = *plus[-s[i]].lower_bound(i);
            plus[-s[i]].erase(near);
            used[near] = true;
            ans += near - i - 1 - useCount;
        }

        useCount++;
    }

    return ans;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:13:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < s.size(); i++)
                     ~~^~~~~~~~~~
shoes.cpp:21:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < s.size(); i++)
                     ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 11 ms 9680 KB Output is correct

Subtask #2
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 11 ms 9680 KB Output is correct
3 Incorrect 10 ms 9720 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 11 ms 9680 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 10 ms 9720 KB Output is correct
6 Correct 10 ms 9720 KB Output is correct
7 Correct 10 ms 9720 KB Output is correct
8 Correct 10 ms 9720 KB Output is correct
9 Correct 10 ms 9724 KB Output is correct
10 Correct 10 ms 9720 KB Output is correct
11 Correct 10 ms 9720 KB Output is correct
12 Correct 10 ms 9692 KB Output is correct
13 Correct 10 ms 9720 KB Output is correct
14 Correct 10 ms 9720 KB Output is correct
15 Correct 10 ms 9720 KB Output is correct
16 Correct 10 ms 9720 KB Output is correct
17 Correct 10 ms 9720 KB Output is correct
18 Correct 11 ms 9848 KB Output is correct
19 Correct 11 ms 9848 KB Output is correct
20 Correct 17 ms 10744 KB Output is correct
21 Correct 18 ms 10744 KB Output is correct
22 Correct 94 ms 20728 KB Output is correct
23 Correct 115 ms 20776 KB Output is correct
24 Correct 100 ms 20728 KB Output is correct
25 Correct 98 ms 20736 KB Output is correct
26 Correct 88 ms 20728 KB Output is correct
27 Correct 105 ms 20628 KB Output is correct
28 Correct 100 ms 20728 KB Output is correct
29 Correct 101 ms 20728 KB Output is correct
30 Correct 100 ms 20728 KB Output is correct
31 Correct 95 ms 20728 KB Output is correct
32 Correct 100 ms 20728 KB Output is correct
33 Correct 99 ms 20736 KB Output is correct
34 Correct 100 ms 20728 KB Output is correct
35 Correct 10 ms 9720 KB Output is correct
36 Correct 10 ms 9740 KB Output is correct
37 Correct 100 ms 20728 KB Output is correct
38 Correct 100 ms 20700 KB Output is correct
39 Correct 102 ms 20732 KB Output is correct

Subtask #4
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 94 ms 20732 KB Output is correct
6 Correct 119 ms 20756 KB Output is correct
7 Correct 92 ms 20700 KB Output is correct
8 Correct 91 ms 20728 KB Output is correct
9 Correct 93 ms 20856 KB Output is correct
10 Correct 98 ms 20728 KB Output is correct

Subtask #5
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 11 ms 9680 KB Output is correct
3 Incorrect 10 ms 9720 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 11 ms 9680 KB Output is correct
3 Incorrect 10 ms 9720 KB Output isn't correct
4 Halted 0 ms 0 KB -