oj.uz

Submission #763736

# Submission time Handle Problem Language Result Execution time Memory
763736 2023-06-22T17:59:07 Z Gabi88 Rack (eJOI19_rack) C++14
40 / 100
 1 ms 212 KB 
#include<bits/stdc++.h>
using namespace std;

#define LL long long

LL n, k, poc = 0, kraj = 1;

int main(){
	ios_base::sync_with_stdio(false); cin.tie(0); cin >> n >> k;
	for(int i=0; i<n; i++){ kraj *= 2; kraj %= 1000000007; }
	while(k > 1){
		LL mid = (poc + kraj) / 2;
		if (k % 2 == 0) poc = mid;
		else kraj = mid;
		k = (k+1) / 2;
	}
	cout << (poc+1) % 1000000007; return 0;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 212 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 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 1 ms 212 KB Output is correct

Subtask #3
0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 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 1 ms 212 KB Output is correct
11 Incorrect 0 ms 212 KB Output isn't correct
12 Halted 0 ms 0 KB -