oj.uz

Submission #929469

# Submission time Handle Problem Language Result Execution time Memory
929469 2024-02-18T05:46:15 Z hngr Rack (eJOI19_rack) C++14
0 / 100
 1 ms 504 KB 
#include <iostream>
#include <vector>
#include <set>
#include <cstdio>
#include <cmath>
#include <algorithm>
#include <string>
#define int long long 
const int mod = 1e9+7;
using namespace std;
int32_t main() {
    int n, k; cin >> n >> k;
    vector<int> y(n+1, 1);
    for(int i = 1; i <= n; i ++) y[i] = y[i-1] * 2;
    int ind = k;
    ind --;
    int ans = 1;
    while(ind != 0){
        int i = log(ind);
        (ans += (y[n-i-1] % mod)) %= mod;
        ind -= y[i];
    }
    cout << ans;
    return 0;
}

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 504 KB Output is correct
2 Incorrect 1 ms 444 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 504 KB Output is correct
2 Incorrect 1 ms 444 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 504 KB Output is correct
2 Incorrect 1 ms 444 KB Output isn't correct
3 Halted 0 ms 0 KB -