Submission #87018

#	Time	Username	Problem	Language	Result	Execution time	Memory
87018		rakuten	Weighting stones (IZhO11_stones)	C++11	0 / 100	2 ms	252 KiB

stones

#include <bits/stdc++.h>

#define fr first
#define sc second
#define pb push_back
#define mk make_pair
#define int long long
#define OK puts("OK")
#define sz(s) (int)s.size()
#define all(s) s.begin(), s.end()

using namespace std;

const int N = 1e5+10;
const int inf = 1e9+7;

int x , a , n , x1 , x2;
set < int > v ;
set < int > :: iterator  vi ;
set < int > q ;
set < int > :: iterator  qi ;
 main()
 {
     cin >> n ;
     for (int i = 0 ;i < n ;i ++ )
     {
         x1 = 0 ;
         x2 = 0 ;
         cin >> x >> a ;
         if (i == 0)
         {
             if (a == 1)
                cout << '>' << endl ;
             else
                cout << '<' << endl ;
                 if (a == 1)
            v.insert (x) ;
         else
            q.insert (x) ;
         }
         else
         {

         if (a == 1)
            v.insert (x) ;
         else
            q.insert (x) ;
            if (v.size() == 0)
            {
                cout << '<' << endl ;
            }
            else
            if (q.size() == 0 )
            {
                cout << '>' << endl ;
            }
            else
            {

         qi = --q.end();
         for (vi = --v.end();  ; vi -- )
         {
           //  cout << *vi << ' ' << * qi << endl ;
             if ( (*vi) > (*qi))
                x1 ++ ;
             else
                x2 ++ ;
            if (qi == q.begin() || vi == v.begin())
                break;
            qi -- ;
         }
      //   cout << endl ;
         if (x1 != x2 )
         {
             if (x1 > x2)
                cout << '>' << endl ;
             else
                cout << '<' << endl ;
         }
         else
            cout << '?' << endl;
            }
         }
     }


}

Compilation message (stderr)

stones.cpp:22:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  main()
       ^
stones.cpp: In function 'int main()':
stones.cpp:46:10: warning: this 'else' clause does not guard... [-Wmisleading-indentation]
          else
          ^~~~
stones.cpp:48:13: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'else'
             if (v.size() == 0)
             ^~

• Subtask 1: 0 / 100