Submission #601789

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
601789	2022-07-22 10:02:27	Minindu2006	Arranging Shoes (IOI19_shoes)	C++14	85 / 100	1085 ms	12436 KiB

shoes

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include "shoes.h"
#include <bits/stdc++.h>
#define ll long long
using namespace std;
 
ll count_swaps(vector<int> s)
{
    ll n = s.size() / 2;
    if (n == 1)
        return s[0] > 0;
  set<int> st;
    int isb4 = 1;
    for (int i = 0; i < n; i++)
    {
        if (s[i] != -s[i + n] || s[i] > 0)
        {
            isb4 = 0;
            break;
        }
    }
    if (isb4)
        return n * (n - 1) / 2;
  for(int i=0;i<2*n;i++)
    st.insert(s[i]);
  
  if (st.size() == 2)
  {
    
    vector<int> l;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:9:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
    9 |     if (n == 1)
      |     ^~
shoes.cpp:11:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   11 |  set<int> st;
      |  ^~~
shoes.cpp:21:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   21 |     if (isb4)
      |     ^~
shoes.cpp:23:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   23 |  for(int i=0;i<2*n;i++)
      |  ^~~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 15 / 15
• Subtask 5: 20 / 20
• Subtask 6: 0 / 15