Submission #319565

#	Time	Username	Problem	Language	Result	Execution time	Memory
319565		ehdtjskaqhd	Hotter Colder (IOI10_hottercolder)	C++17	0 / 100	737 ms	44900 KiB

hottercolder

#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 (stderr)

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