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Submission #596914

# Submission time Handle Problem Language Result Execution time Memory
596914 2022-07-15T09:18:00 Z keta_tsimakuridze Hotter Colder (IOI10_hottercolder) C++14
50 / 100
 2445 ms 8104 KB 
#include<bits/stdc++.h>
#define f first
#include "grader.h"
#define s second
#define pii pair<int,int>
using namespace std;
const int N = 2e5 + 5, mod = 1e9 + 7; // !
int t;
int HC(int n) {
    srand(time(0));
    int l = 1, r = n, ans = 1, last = -1;
    while(l != r) {
        if(last == l || (last != r && rand() % 2)) {
            if(last != l) Guess(l);
            int x = Guess(r); last = r;
            if(!x) return (l + r) / 2;
            if(x == 1) l = (l + r) / 2 +  1;
            else r = (l + r) / 2;
            continue;
        }
        if(last != r) Guess(r);
        int x = Guess(l); last = l;
        if(!x) return (l + r) / 2;
        if(x == -1) l = (l + r) / 2 +  1;
        else r = (l + r) / 2;

    }
    return l;
}

Compilation message

hottercolder.cpp: In function 'int HC(int)':
hottercolder.cpp:11:23: warning: unused variable 'ans' [-Wunused-variable]
   11 |     int l = 1, r = n, ans = 1, last = -1;
      |                       ^~~

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 243 ms 1236 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 236 ms 1280 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 244 ms 1280 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 2445 ms 8104 KB Output isn't correct - alpha = 0.000000000000