Submission #977970

#	Time	Username	Problem	Language	Result	Execution time	Memory
977970		kilkuwu	Arranging Shoes (IOI19_shoes)	C++17	Compilation error	0 ms	0 KiB

shoes

#include "shoes.h"

long long count_swaps(std::vector<int> s) {
  int n = (int) s.size() / 2;
  return (int64_t) n * (n - 1) / 2;
}

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:5:11: error: 'int64_t' was not declared in this scope
    5 |   return (int64_t) n * (n - 1) / 2;
      |           ^~~~~~~
shoes.cpp:5:19: error: expected ';' before 'n'
    5 |   return (int64_t) n * (n - 1) / 2;
      |                   ^~
      |                   ;
shoes.cpp:5:32: warning: statement has no effect [-Wunused-value]
    5 |   return (int64_t) n * (n - 1) / 2;
      |                    ~~~~~~~~~~~~^~~