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Submission #258362

# Submission time Handle Problem Language Result Execution time Memory
258362 2020-08-05T20:20:28 Z maximath_1 Swap (BOI16_swap) C++11
100 / 100
 59 ms 5300 KB 
#include <iostream>
using namespace std;

int n, arr[200005], used[400005];
const int inf = 1e9 + 69;

int query(int id){
	int rs = inf;
	for(; id; id >>= 1){
		if(used[id] != 1) rs = min(rs, arr[id]);
		if(!used[id]) break;

		if(id % 2 == 1 && used[id - 1]){
			rs = min(rs, arr[id - 1]);
			if(used[id - 1] == 1) break;
		}
	}
	return rs;
}

void erase(int id, int val){
	for(; id; id >>= 1){
		if(arr[id] == val){
			used[id] = 0;
			break;
		}

		if(id % 2 == 1){
			if(arr[id - 1] == val){
				used[id - 1] = used[id] = 1;
				break;
			}else used[id - 1] = 0;
		}

		used[id] = 1;
	}
}

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);

	cin >> n;
	for(int i = 1; i <= n; i ++){
		cin >> arr[i];
		used[i] = 2;
	}
	used[1] = 0;

	for(int i = 1; i <= n; i ++){
		int rs = query(i);
		int upl = (i * 2 <= n ? arr[i * 2] : inf);
		int upr = (i * 2 + 1 <= n ? arr[i * 2 + 1] : inf);
		int v = min(rs, min(upl, upr));

		cout << v;
		if(i == n) cout << endl;
		else cout << " ";

		if(rs == v){
			used[i * 2] = used[i * 2 + 1] = 0;
			erase(i, rs);
		}else if(upl == v){
			used[i * 2] = 1;
			used[i * 2 + 1] = 0;
		}else if(upr == v){
			used[i * 2 + 1] = 1;
		}
	}

	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 14 ms 1536 KB Output is correct
17 Correct 13 ms 1536 KB Output is correct
18 Correct 12 ms 1536 KB Output is correct
19 Correct 15 ms 1528 KB Output is correct
20 Correct 22 ms 1536 KB Output is correct

Subtask #5
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 14 ms 1536 KB Output is correct
17 Correct 13 ms 1536 KB Output is correct
18 Correct 12 ms 1536 KB Output is correct
19 Correct 15 ms 1528 KB Output is correct
20 Correct 22 ms 1536 KB Output is correct
21 Correct 56 ms 5240 KB Output is correct
22 Correct 50 ms 5240 KB Output is correct
23 Correct 55 ms 5240 KB Output is correct
24 Correct 59 ms 5300 KB Output is correct
25 Correct 58 ms 5240 KB Output is correct