Submission #286206

#	Time	Username	Problem	Language	Result	Execution time	Memory
286206		BeanZ	Arranging Shoes (IOI19_shoes)	C++14	Compilation error	0 ms	0 KiB

shoes

#include <bits/stdc++.h>
#include "shoes.h"

using namespace std;

#define ll long long
#define endl '\n'

const int N = 2e5 + 5;
ll a[200005];
ll count_swap(int S[]){
        ll now = 0, ans = 0;
        for (int i = 0; i < (2 * n); i++){
                if (S[i] < 0){
                        ans = ans + abs(i - now);
                        now += 2;
                }
        }
        return ans;
}
/*
int main(){
        ios_base::sync_with_stdio(false);
        cin.tie(0);
        if (fopen("VietCT.INP", "r")){
                freopen("VietCT.INP", "r", stdin);
                freopen("VietCT.OUT", "w", stdout);
        }
        ll n;
        cin >> n;
        for (int i = 1; i <= 2 * n; i++) cin >> a[i];
        ll now = 1, ans = 0;
        for (int i = 1; i <= (2 * n); i++){
                if (a[i] < 0){
                        ans = ans + abs(i - now);
                        now += 2;
                }
        }
        cout << ans;
}
*/
/*
*/

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swap(int*)':
shoes.cpp:13:34: error: 'n' was not declared in this scope
   13 |         for (int i = 0; i < (2 * n); i++){
      |                                  ^