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Submission #319565

# Submission time Handle Problem Language Result Execution time Memory
319565 2020-11-05T14:05:06 Z ehdtjskaqhd Hotter Colder (IOI10_hottercolder) C++17
0 / 100
 737 ms 44900 KB 
#include <bits/stdc++.h>
#include "grader.h"
using namespace std;
int HC(int N)
{
    int l = 1, r = N, res, lg = -1;
    auto gs = [&](int g) -> int {return Guess(lg = g);};
    while (r - l > 1)
    {
        if (lg == l) res = gs(r);
        else if (lg == r) res = -gs(l);
        else gs(l), res = gs(r);
        int mid = (l + r) / 2, adj = (l + r) % 2;
        if (!res) return mid;
        else if (~res) l = mid + adj;
        else r = mid;
    }
    return res > 0 ? r : l;
}

Compilation message

hottercolder.cpp: In function 'int HC(int)':
hottercolder.cpp:18:20: warning: 'res' may be used uninitialized in this function [-Wmaybe-uninitialized]
   18 |     return res > 0 ? r : l;
      |            ~~~~~~~~^~~~~~~

Subtask #1
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 32 ms 6764 KB Output isn't correct

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 32 ms 6756 KB Output isn't correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 34 ms 6636 KB Output isn't correct

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 737 ms 44900 KB Output isn't correct - alpha = 0.000000000000