Submission #773609

#	Time	Username	Problem	Language	Result	Execution time	Memory
773609		lollipop	Hotter Colder (IOI10_hottercolder)	C++17	25 / 100	1327 ms	8112 KiB

hottercolder

#include "grader.h"
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>
//#define int long long
#define pb push_back
#define s second
#define f first
#define pf push_front
#define inf 100000000000000000
#define bitebi __builtin_popcountll
#define FOR( i , n ) for( int i = 0 ; i < n ; i ++ )
#define YES cout <<"YES\n"
#define NO cout << "NO\n"
#define debug cout << "Here Fine" << endl ;
#define pr pair < int , int >
#define fbo find_by_order // returns iterator
#define ook order_of_key // returns strictly less numbers than key
using namespace std ;
//#pragma GCC optimize("Ofast")
//#pragma GCC target("avx,avx2,fma")
using namespace __gnu_pbds;
using namespace __gnu_cxx;
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
const double Pi=acos(-1.0);
const double EPS=1E-8;
const int mod =  1000000007 ;
const int mod1 = 998244353 ;
const int N = 2e5 + 10 ;
mt19937 R(time(0));
struct hash_pair {
    template <class T1, class T2>
    size_t operator()(const pair<T1, T2>& p) const
    {
        auto hash1 = hash<T1>{}(p.first);
        auto hash2 = hash<T2>{}(p.second);
 
        if (hash1 != hash2) {
            return hash1 ^ hash2;             
        }
         
        // If hash1 == hash2, their XOR is zero.
          return hash1;
    }
};
unordered_map < pair < int , int > , int , hash_pair> ma , ma1 ;
int HC( int N ){
    int l = 1 ;
    int z = Guess( 1 ) ;
    int r = N ;
    int lst = -1 ;
    ma.clear() ;
    while( l < r ){
        ma[ { l , r } ] ++ ;
        if( ma[ { l , r } ] == 2 ) break ; 
        int mid = ( l + r ) / 2 ; 
        if( lst == -1 ){
            int x = Guess( r ) ;
            if( x == 1 ){
                l = mid + 1 ; 
                lst = 1 ; 
                continue ; 
            } 
            if( x == -1 ){
                r = mid ;
                int ff = Guess( l ) ; 
                lst = - 1 ; 
                continue ;
            }
            if( x == 0 ){
                return mid ; 
                continue ; 
            }
        }
        else{
            int x = Guess( l ) ;
                if( x == 1 ){
                    r = mid ; 
                    lst = -1 ; 
                    continue ; 
              } 
                if( x == -1 ){
                  l = mid + 1 ;
                  int ff = Guess( l ) ; 
                  lst = - 1 ; 
                  continue ;
              }
                if( x == 0 ){
                    return mid ; 
                    continue ; 
                }            
        }
    }
    if( l != r ){
       Guess( l ) ; 
       int x = Guess( r ) ;
       if( x == 1 ) return r ;
        else return l ; 
    }
    return l ; 
}

Compilation message (stderr)

hottercolder.cpp: In function 'int HC(int)':
hottercolder.cpp:67:21: warning: unused variable 'ff' [-Wunused-variable]
   67 |                 int ff = Guess( l ) ;
      |                     ^~
hottercolder.cpp:85:23: warning: unused variable 'ff' [-Wunused-variable]
   85 |                   int ff = Guess( l ) ;
      |                       ^~
hottercolder.cpp:50:9: warning: unused variable 'z' [-Wunused-variable]
   50 |     int z = Guess( 1 ) ;
      |         ^

• Subtask 1: 25 / 25
• Subtask 2: 0 / 25
• Subtask 3: 0 / 25
• Subtask 4: 0 / 25