oj.uz

Submission #357654

# Submission time Handle Problem Language Result Execution time Memory
357654 2021-01-24T11:19:47 Z leinad2 Colors (BOI20_colors) C++17
0 / 100
 1 ms 364 KB 
#include<bits/stdc++.h>
using namespace std;
long long n, a, b, m, prv, ans;
int main()
{
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
    cin>>n;
    prv=1;
    cout<<"? "<<prv<<endl;
    cin>>ans;
    a=1;b=n;
    while(a<b)
    {
        m=(a+b)/2;
        if(prv-m<1&&prv+m>n)
        {
            cout<<"? 1"<<endl;
            cin>>ans;
            prv=1;
        }
        if(prv-m>=1)
        {
            prv-=m;
            cout<<"? "<<prv<<endl;
            cin>>ans;
            if(ans==1)b=m;
            else a=m+1;
        }
        else
        {
            prv+=m;
            cout<<"? "<<prv<<endl;
            cin>>ans;
            if(ans==1)b=m;
            else a=m+1;
        }
    }
    cout<<a<<endl;
}

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 364 KB Token parameter [name=cmd] equals to "4", doesn't correspond to pattern "[?=]"
2 Halted 0 ms 0 KB -

Subtask #2
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 364 KB Token parameter [name=cmd] equals to "4", doesn't correspond to pattern "[?=]"
2 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 364 KB Token parameter [name=cmd] equals to "4", doesn't correspond to pattern "[?=]"
2 Halted 0 ms 0 KB -

Subtask #4
0 / 24.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 364 KB Token parameter [name=cmd] equals to "4", doesn't correspond to pattern "[?=]"
2 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 364 KB Token parameter [name=cmd] equals to "4", doesn't correspond to pattern "[?=]"
2 Halted 0 ms 0 KB -