제출 #929361

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
929361		erkhem	Rack (eJOI19_rack)	C++14	40 / 100	50 ms	102400 KiB

rack

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

#define int long long
#define endl '\n'
#define ff first
#define ss second
#define rev reverse
#define pb push_back
#define all(a) a.begin(), a.end()
#define maxx(a, b) a = max(a, b);
#define minn(a, b) a = min(a, b);
#define fastio cin.tie(0)->sync_with_stdio(0)
#define rep(i, n) for(int i = 0; i < (n); i++)
#define rep1(i, n) for(int i = 1; i <= (n); i++)

typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<pii> vii;
typedef vector<bool> vb;
typedef vector<string> vs;

const int mod = 1e9 + 7;
const int inf = 1e18;
const int dx[] = {0, 1, 0, -1};
const int dy[] = {-1, 0, 1, 0};

int32_t main() {
	fastio;
	int n, k;
	cin >> n >> k;
	n = 1 << n;
	vi a(n + 1);
	rep1(i, n) {
		a[i] = i;
	}
	int s = 1, t = n / 2 + 1;
	vi ans;
	ans.pb(s);
	ans.pb(t);
	int sz = n / 4;
	while (1) {
		if (ans.size() >= k) break;
		int m = ans.size();
		rep(i, m) {
			ans.pb(ans[i] + sz);
		}
		sz /= 2;
	}
	cout << ans[k - 1] << endl;;
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

rack.cpp: In function 'int32_t main()':
rack.cpp:44:18: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   44 |   if (ans.size() >= k) break;
      |       ~~~~~~~~~~~^~~~

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