oj.uz

Submission #631233

# Submission time Handle Problem Language Result Execution time Memory
631233 2022-08-17T21:12:41 Z smartmonky Rack (eJOI19_rack) C++14
40 / 100
 710 ms 98892 KB 
#include <bits/stdc++.h>
#define ll long long
#define pb push_back
using namespace std;
const int mod=1e9+7;
main(){
	int n,k;
	cin >>n >>k;
	int x=(1 << n);
	map<int,int> v,ans;
	v[1]=1;
	ans[1]=1;
	v[2]=x/2+1;
	ans[2]=(v[2]);
	int cnt=2;
	int s=3;
	for(int i=x/4;i>=1;i/=2){
		for(int j=1;j<=cnt;j++){
			if(cnt+j<=x){
				v[cnt+j]=(v[j]+i)%mod;
				ans[s]=v[cnt+j];
				s++;
			}
		}
		cnt*=2;
	}
	cout<<ans[k];
}

Compilation message

rack.cpp:6:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    6 | 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 340 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 340 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 4 ms 1068 KB Output is correct
8 Correct 33 ms 6368 KB Output is correct
9 Correct 152 ms 24900 KB Output is correct
10 Correct 710 ms 98892 KB Output is correct

Subtask #3
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 340 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 4 ms 1068 KB Output is correct
8 Correct 33 ms 6368 KB Output is correct
9 Correct 152 ms 24900 KB Output is correct
10 Correct 710 ms 98892 KB Output is correct
11 Incorrect 1 ms 340 KB Output isn't correct
12 Halted 0 ms 0 KB -