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답안 #258523

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
258523 2020-08-06T05:32:41 Z 임성재(#5051) Swap (BOI16_swap) C++17
0 / 100
 5 ms 4992 KB 
#include<bits/stdc++.h>
using namespace std;

#define fast ios::sync_with_stdio(false); cin.tie(NULL)
#define fi first
#define se second
#define pb push_back
#define eb emplace_back
#define em emplace
#define all(v) (v).begin(), (v).end()
#define pre(a) cout<<fixed; cout.precision(a)
#define mp make_pair

typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
const int inf = 1e9;
const ll INF = 1e18;

int n;
int a[100010];
set<int> g[100010];

int main() {
	fast;

	cin >> n;

	for(int i=1; i<=n; i++) {
		cin >> a[i];

		if(i > 1) g[i/2].insert(i), g[i].insert(i/2);
	}

	for(int i=1; i<=n; i++) {
		int mn = a[i];

		for(auto it : g[i]) {
			g[it].erase(i);
			mn = min(mn, a[it]);
		}

		if(mn == a[i]) continue;

		bool flag = false;
		int x;

		for(auto it : g[i]) {
			if(mn == a[it]) {
				x = it;
				flag = true;
				break;
			}
		}

		swap(a[x], a[i]);

		for(auto it : g[i]) {
			if(it == x) break;

			g[x].insert(it);
			g[it].insert(x);
		}
	}

	for(int i=1; i<=n; i++) {
		cout << a[i] << " ";
	}
}

Compilation message

swap.cpp: In function 'int main()':
swap.cpp:45:8: warning: variable 'flag' set but not used [-Wunused-but-set-variable]
   bool flag = false;
        ^~~~

Subtask #1
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 4992 KB Output is correct
2 Correct 4 ms 4992 KB Output is correct
3 Incorrect 4 ms 4992 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 4992 KB Output is correct
2 Correct 4 ms 4992 KB Output is correct
3 Incorrect 4 ms 4992 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 4992 KB Output is correct
2 Correct 4 ms 4992 KB Output is correct
3 Incorrect 4 ms 4992 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 4992 KB Output is correct
2 Correct 4 ms 4992 KB Output is correct
3 Incorrect 4 ms 4992 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 4992 KB Output is correct
2 Correct 4 ms 4992 KB Output is correct
3 Incorrect 4 ms 4992 KB Output isn't correct
4 Halted 0 ms 0 KB -