oj.uz

Submission #1074248

# Submission time Handle Problem Language Result Execution time Memory
1074248 2024-08-25T09:03:03 Z beaconmc Hotter Colder (IOI10_hottercolder) C++14
25 / 100
 525 ms 8188 KB 
#include "grader.h"
#include <bits/stdc++.h>

typedef long long ll;

#define FOR(i,x,y) for(ll i=x; i<y; i++)
#define FORNEG(i,x,y) for(lli = x; i>y; i--)
using namespace std;

ll n;
int guess(ll a){

   if (a==0) return -1;
   if (a==n+1) return -1;
   return Guess(a);

}
int solve(int a, int b){

   if (a==b) return a;
   ll mid = (a+b)/2;
   ll midval = guess(mid);
   ll right = guess(mid+1);
   ll left = guess(mid-1);


   if (left == -1 && right==0 || left==-1 && right==-1){
      return mid;
   }
   if (left == -1){
      return solve(mid+1, b);
   }else{
      return solve(a, mid);
   }
}


int HC(int N){
   n = N;
   ll ans = solve(1,N);
   return ans;
}

Compilation message

hottercolder.cpp: In function 'int solve(int, int)':
hottercolder.cpp:27:19: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   27 |    if (left == -1 && right==0 || left==-1 && right==-1){
      |        ~~~~~~~~~~~^~~~~~~~~~~
hottercolder.cpp:22:7: warning: unused variable 'midval' [-Wunused-variable]
   22 |    ll midval = guess(mid);
      |       ^~~~~~

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 1372 KB Output is correct

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 22 ms 1372 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 22 ms 1432 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 525 ms 8188 KB Output isn't correct - alpha = 0.000000000000
2 Halted 0 ms 0 KB -