Submission #965348

#	Time	Username	Problem	Language	Result	Execution time	Memory
965348		Syrius	Arranging Shoes (IOI19_shoes)	C++14	Compilation error	0 ms	0 KiB

shoes

#include <bits/stdc++.h>
#include "shoes.h"
using namespace std;

// #define int long long
#define ll long long
#define ff first
#define ss second
#define pint pair < int , int >
#define fast ios_base::sync_with_stdio(NULL); cin.tie(NULL)

const int inf = 1e9 + 9;
const int mxn = 2e5 + 2;
const int mod = 1e9 + 7;

int count_swaps(vector < int > v) {

	cout << (v.size() - 1) * v.size() / 2 << '\n';
}

Compilation message (stderr)

shoes.cpp:16:5: error: ambiguating new declaration of 'int count_swaps(std::vector<int>)'
   16 | int count_swaps(vector < int > v) {
      |     ^~~~~~~~~~~
In file included from shoes.cpp:2:
shoes.h:7:11: note: old declaration 'long long int count_swaps(std::vector<int>)'
    7 | long long count_swaps(std::vector<int> S);
      |           ^~~~~~~~~~~
shoes.cpp: In function 'int count_swaps(std::vector<int>)':
shoes.cpp:19:1: warning: no return statement in function returning non-void [-Wreturn-type]
   19 | }
      | ^