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Submission #628411

# Submission time Handle Problem Language Result Execution time Memory
628411 2022-08-13T11:39:18 Z abcvuitunggio Hotter Colder (IOI10_hottercolder) C++17
81 / 100
 8419 ms 8108 KB 
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2")
#include "grader.h"
#include <bits/stdc++.h>
using namespace std;
map <std::pair <int, int>, int> mp,mp2;
int HC(int N){
    mp.clear();
    mp2.clear();
    int l=1,r=N,kq=N,val;
    int last=N;
    val=Guess(N);
    while (l<r){
        if (mp2.count({l,r})){
            val=Guess((last<l?l:r));
            last=(last<l?l:r);
        }
        mp2[{l,r}]=1;
        int mid=l+r-last;
      	mid=std::max(mid,1);
      	mid=std::min(mid,N);
        val=(mp.count({last,mid})?mp[{last,mid}]:Guess(mid));
        int ch=(mp.count({last,mid}));
        mp[{last,mid}]=val;
        mp[{mid,last}]=-val;
        if (val==0)
            return (mid+last)/2;
        if (val==1){
            if (last<mid)
                l=(last+mid+1)/2;
            else{
                r=(last+mid-1)/2;
                kq=r;
            }
            if (!ch)
                last=mid;
            continue;
        }
        if (last<mid){
            r=(last+mid-1)/2;
            kq=r;
        }
        else
            l=(last+mid+1)/2;
        if (!ch)
            last=mid;
    }
    return kq;
}

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 230 ms 1280 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 243 ms 1284 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 232 ms 1276 KB Output is correct

Subtask #4
6.0 / 25.0

# Verdict Execution time Memory Grader output
1 Partially correct 8419 ms 8108 KB Output is partially correct - alpha = 0.250000000000