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Submission #554840

# Submission time Handle Problem Language Result Execution time Memory
554840 2022-04-29T13:40:42 Z kevinxiehk Hotter Colder (IOI10_hottercolder) C++17
0 / 100
 578 ms 8648 KB 
#include <bits/stdc++.h>
#include "grader.h"
#define mp make_pair
#define pb emplace_back
#define fi first
#define se second
using namespace std;
 
int Guess (int x);
int last = 1;
int ans;

// int Guess (int x) {
//     cout << x << '\n';
//     if(abs(last - ans) == abs(x - ans)) return 0;
//     else if(abs(last - ans) > abs(x - ans)) return 1;
//     return -1;
// }

int HC(int n){
    int l = 1, r = n;
    last = 1;
    Guess(1);
    while(l < r) {
        // if(last != l && last != r) {
        //     Guess(l); last = l;
        // }
        int mid = (l + r) / 2;
        int now = mid * 2 - last;
        now = min(now, n); now = max(now, 1);

        int k = Guess(now);
        // last = l ^ r ^ last;
        if(k == 0) {
            return (last + now) / 2;
        }
        else if((k == 1 && now > last) || (k == -1 && now < last)) {
            l = (last + now) / 2 + 1;
        }
        else {
            r = (last + now + 1) / 2 - 1;
        }
        last = now;
    }
    return l;
}

// int main() {
//     int n;
//     cin >> n >> ans;
//     cout << HC(n) << '\n';
// }

Subtask #1
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 21 ms 1620 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 21 ms 1676 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 1676 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 578 ms 8648 KB Output isn't correct - alpha = 0.000000000000