Submission #1290721

#	Time	Username	Problem	Language	Result	Execution time	Memory
1290721		kahoul	Arranging Shoes (IOI19_shoes)	C++20	Compilation error	0 ms	0 KiB

shoes

#include "shoes.h"
using namespace std;

long long count_swaps(vector<int> s) {
    deque<int> q;
	long long ans = 0 ;

    for (int i = 0; i < s.size() / 2; i++) {
        ans += s.size() / 2 - i - 1;
    }

	return ans;
}

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:5:5: error: 'deque' was not declared in this scope
    5 |     deque<int> q;
      |     ^~~~~
shoes.cpp:2:1: note: 'std::deque' is defined in header '<deque>'; did you forget to '#include <deque>'?
    1 | #include "shoes.h"
  +++ |+#include <deque>
    2 | using namespace std;
shoes.cpp:5:11: error: expected primary-expression before 'int'
    5 |     deque<int> q;
      |           ^~~