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Submission #1088085

# Submission time Handle Problem Language Result Execution time Memory
1088085 2024-09-13T20:13:54 Z StefanSebez Hotter Colder (IOI10_hottercolder) C++14
50 / 100
 759 ms 24348 KB 
#include "grader.h"
#include<bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define pb push_back
#define ll long long
#define ld long double
int HC(int n){
	int l=1,r=n,ct=0,res=0;
	vector<pair<int,int> >a;
	while(l<=r){
		//printf("%i %i\n",l,r);
		if(l==r){res=l;break;}
		int mid=l+r>>1;
		if(1){
			a.pb({Guess(mid),mid});
			a.pb({Guess(mid+1),mid+1});
			if(a.back().fi==-1) r=mid;
			else l=mid+1;
		}
		else{
			if(a.back().se<mid){
				int k=(r-l)/4;
				mid=l+3*k;
				a.pb({Guess(mid),mid});
				if(a.back().fi==1) l=mid-k;
				else r=mid-k;
			}
			else{
				int k=(r-l)/4;
				mid=l+k;
				a.pb({Guess(mid),mid});
				if(a.back().fi==1) r=mid+k;
				else l=mid+k;
			}
		}
		ct++;
	}
	return res;
}

Compilation message

hottercolder.cpp: In function 'int HC(int)':
hottercolder.cpp:15:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   15 |   int mid=l+r>>1;
      |           ~^~

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 1372 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 1368 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 34 ms 1372 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 759 ms 24348 KB Output isn't correct - alpha = 0.000000000000
2 Halted 0 ms 0 KB -