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Submission #282816

# Submission time Handle Problem Language Result Execution time Memory
282816 2020-08-25T02:38:50 Z Pichon5 Arranging Shoes (IOI19_shoes) C++17
15 / 100
 42 ms 2808 KB 
#include "shoes.h"
#include <bits/stdc++.h>
#define lcm(a,b) (a/__gcd(a,b))*b
#define fast ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define ll long long int
#define vi vector<int>
#define vll vector<ll>
#define pb push_back
#define F first
#define S second
#define mp make_pair
using namespace std;
long long count_swaps(std::vector<int> s) {
    int n=s.size();
    ll res=0;
    int c;
    bool ok=true;
    for(int i=0;i<n/2;i++){
        if(-s[i]!=s[i+n/2]){
            ok=false;
            break;
        }
    }
    if(ok==true){
            n=s.size()/2;
        for(int i=1;i<n;i++){
        res+=i;
    }
    return res;
    }
    for(int i=0;i<n;i++){
        if(s[i]==0){
                continue;
        }
        for(int l=i+1;l<2*n;l++){
            if(s[l]+s[i]==0){
                s[l]=0;
                break;
            }
            if(s[l]==0){
                continue;
            }
            res++;
        }
        if(s[i]>0){
            res++;
        }
    }
    return res;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:16:9: warning: unused variable 'c' [-Wunused-variable]
   16 |     int c;
      |         ^

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Incorrect 0 ms 256 KB Output isn't correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Incorrect 0 ms 256 KB Output isn't correct

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Incorrect 0 ms 256 KB Output isn't correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 41 ms 1912 KB Output is correct
6 Correct 35 ms 2304 KB Output is correct
7 Correct 33 ms 2296 KB Output is correct
8 Correct 33 ms 2424 KB Output is correct
9 Correct 33 ms 2808 KB Output is correct
10 Correct 42 ms 2808 KB Output is correct

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Incorrect 0 ms 256 KB Output isn't correct

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Incorrect 0 ms 256 KB Output isn't correct