Submission #1111857

#	Time	Username	Problem	Language	Result	Execution time	Memory
1111857		vjudge1	Rack (eJOI19_rack)	C++17	0 / 100	120 ms	102400 KiB

rack

#include <bits/stdc++.h>
using namespace std;

#define int long long
#define pb push_back
#define F first
#define S second
#define all(v) v.begin(),v.end()


typedef vector<int> vi;
typedef vector<char> vc;
typedef pair<int,int> ii;
typedef vector<ii> vii;
typedef set<int> si;
typedef map<int,int> mii;
const int INF = 2e5 + 100;

int cal(int s,int e,int k){
	//cout << s << " " << e << " " << k << endl;
	if (k == 1) return s;
	int m = (e - s + 1) / 2;
	if (k%2 == 1){
		cal(s,s + m -1, (k+1) / 2);
	}
	else cal(s + m,e , (k+1) / 2);
}


int32_t main(){

	ios_base::sync_with_stdio(NULL);cin.tie(NULL);cout.tie(NULL);

	int n,k; cin >> n >> k;
	cout << cal(1,(1 << n),k);

	return 0;
}

Compilation message (stderr)

rack.cpp: In function 'long long int cal(long long int, long long int, long long int)':
rack.cpp:27:1: warning: control reaches end of non-void function [-Wreturn-type]
   27 | }
      | ^

• Subtask 1: 0 / 20
• Subtask 2: 0 / 20
• Subtask 3: 0 / 60