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Submission #631215

# Submission time Handle Problem Language Result Execution time Memory
631215 2022-08-17T20:39:38 Z typ Rack (eJOI19_rack) C++14
100 / 100
 10 ms 1236 KB 
#include<bits/stdc++.h>

using namespace std;

const long long MOD = 1e9+7;
long long n, k, pom=1, liczba=1;

main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    cin>>n>>k;
    k--;
    stack<bool> bin;
    for(int i=0;i<n;i++)
    {
        bin.push(k%2);
        k/=2;
    }

    while(n--)
    {
        if(bin.top())
            liczba = (liczba+pom)%MOD;
        bin.pop();
        pom = (2*pom)%MOD;
    }

    cout<<liczba;

    return 0;
}

Compilation message

rack.cpp:8:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    8 | main()
      | ^~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct

Subtask #3
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 316 KB Output is correct
15 Correct 10 ms 1236 KB Output is correct