Submission #143947

#	Time	Username	Problem	Language	Result	Execution time	Memory
143947		Nucleist	Arranging Shoes (IOI19_shoes)	C++14	15 / 100	32 ms	2012 KiB

shoes

#include <bits/stdc++.h>
#include "shoes.h" 
using namespace std; 
#define flash ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#define debug(x) cerr << " - " << #x << ": " << x << endl;
#define debugs(x, y) cerr << " - " << #x << ": " << x << " " << #y << ": " << y << endl;
#define all(x) (x).begin(),(x).end()
#define sz(x) (ll)x.size()
#define ll long long
#define INF 1000000000
#define pb push_back
struct greateri
{
    template<class T>
    bool operator()(T const &a, T const &b) const { return a > b; }
};
ll count_swaps(vector<int>S)
{
  //flash;
  ll ans=0;
  ll index=(S.size()/2)-1;
  for (int i = 0; i < (S.size()/2); ++i)
  {
    if(index>0)
    ans+=index;
    index--;
  }
  return ans;
}
//code the AC sol !
// BS/queue/map

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:22:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = 0; i < (S.size()/2); ++i)
                   ~~^~~~~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 15 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 15