Submission #543072

#	Time	Username	Problem	Language	Result	Execution time	Memory
543072		Anas_AbuAmar	Arranging Shoes (IOI19_shoes)	C++14	Compilation error	0 ms	0 KiB

shoes

//#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
long long count_swaps(std::vector<int> s) {
   int ans = 0;
   deque<int>d;
   for (auto &i:s){
      d.push_back(i);
   }
   while(!d.empty())
      int cur = d.front();
      auto next = find (d.begin() , d.end() ,cur*-1);
      ans += (next-d.begin());
      if (cur > 0 ){
         ans++;
      }
      d.pop_front();
      d.erase(next);
   }
   return ans;
}
int main() {
	int n;
	assert(1 == scanf("%d", &n));
	vector<int> S(2 * n);
	for (int i = 0; i < 2 * n; i++)
		assert(1 == scanf("%d", &S[i]));
	fclose(stdin);

	long long result = count_swaps(S);

	printf("%lld\n", result);
	fclose(stdout);
	return 0;
}

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:10:4: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
   10 |    while(!d.empty())
      |    ^~~~~
shoes.cpp:12:7: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'while'
   12 |       auto next = find (d.begin() , d.end() ,cur*-1);
      |       ^~~~
shoes.cpp:11:11: warning: unused variable 'cur' [-Wunused-variable]
   11 |       int cur = d.front();
      |           ^~~
shoes.cpp:12:46: error: 'cur' was not declared in this scope
   12 |       auto next = find (d.begin() , d.end() ,cur*-1);
      |                                              ^~~
shoes.cpp:19:4: warning: no return statement in function returning non-void [-Wreturn-type]
   19 |    }
      |    ^
shoes.cpp: At global scope:
shoes.cpp:20:4: error: expected unqualified-id before 'return'
   20 |    return ans;
      |    ^~~~~~
shoes.cpp:21:1: error: expected declaration before '}' token
   21 | }
      | ^