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Submission #384202

# Submission time Handle Problem Language Result Execution time Memory
384202 2021-03-31T19:05:29 Z pure_mem Swap (BOI16_swap) C++14
100 / 100
 169 ms 17408 KB 
#include <bits/stdc++.h>

#define X first
#define Y second
#define MP make_pair
#define ll long long

using namespace std;

const int N = 5e5 + 12;
const int mod = 1e9 + 7;

int n, p[N];
map< pair<int, int>, int > dp;

int get(int v, int val){
	if(dp.count(MP(v, val)))
		return dp[MP(v, val)];
	if(val < min(p[v * 2], p[v * 2 + 1]))
		return v;
	if(p[v * 2] < p[v * 2 + 1])
		return dp[MP(v, val)] = get(v * 2, val);
	int mn = min(p[v * 2], val), mx = max(p[v * 2], mx);
	if(get(v * 2, mn) < get(v * 2 + 1, mn)){
		if(mn == val)
			return dp[MP(v, val)] = get(v * 2, val);
		else
			return dp[MP(v, val)] = get(v * 2 + 1, val); 	
	}
	else{
	    if(mn != val)
			return dp[MP(v, val)] = get(v * 2, val);
		else
			return dp[MP(v, val)] = get(v * 2 + 1, val);
	}
}

int main () {
	ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
	memset(p, 0x3f, sizeof(p));
	cin >> n;
	for(int i = 1;i <= n;i++)
		cin >> p[i];
    for(int i = 1;i <= n;i++){
    	if(p[i * 2 + 1] < min(p[i], p[i * 2])){
    		int mn = min(p[i], p[i * 2]), mx = max(p[i], p[i * 2]);
    		p[i] = p[i * 2 + 1], p[i * 2] = mx, p[i * 2 + 1] = mn;
    		if(get(i * 2, mn) < get(i * 2 + 1, mn))
    			p[i * 2] = mn, p[i * 2 + 1] = mx;
    	}
    	else if(p[i * 2] < p[i]){
    		swap(p[i], p[i * 2]);
    	}
    	cout << p[i] << " ";
    }
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2284 KB Output is correct
2 Correct 2 ms 2284 KB Output is correct
3 Correct 2 ms 2284 KB Output is correct
4 Correct 2 ms 2284 KB Output is correct
5 Correct 2 ms 2284 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2284 KB Output is correct
2 Correct 2 ms 2284 KB Output is correct
3 Correct 2 ms 2284 KB Output is correct
4 Correct 2 ms 2284 KB Output is correct
5 Correct 2 ms 2284 KB Output is correct
6 Correct 2 ms 2284 KB Output is correct
7 Correct 2 ms 2284 KB Output is correct
8 Correct 3 ms 2284 KB Output is correct
9 Correct 2 ms 2284 KB Output is correct
10 Correct 2 ms 2284 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2284 KB Output is correct
2 Correct 2 ms 2284 KB Output is correct
3 Correct 2 ms 2284 KB Output is correct
4 Correct 2 ms 2284 KB Output is correct
5 Correct 2 ms 2284 KB Output is correct
6 Correct 2 ms 2284 KB Output is correct
7 Correct 2 ms 2284 KB Output is correct
8 Correct 3 ms 2284 KB Output is correct
9 Correct 2 ms 2284 KB Output is correct
10 Correct 2 ms 2284 KB Output is correct
11 Correct 2 ms 2284 KB Output is correct
12 Correct 2 ms 2284 KB Output is correct
13 Correct 3 ms 2284 KB Output is correct
14 Correct 2 ms 2412 KB Output is correct
15 Correct 2 ms 2412 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2284 KB Output is correct
2 Correct 2 ms 2284 KB Output is correct
3 Correct 2 ms 2284 KB Output is correct
4 Correct 2 ms 2284 KB Output is correct
5 Correct 2 ms 2284 KB Output is correct
6 Correct 2 ms 2284 KB Output is correct
7 Correct 2 ms 2284 KB Output is correct
8 Correct 3 ms 2284 KB Output is correct
9 Correct 2 ms 2284 KB Output is correct
10 Correct 2 ms 2284 KB Output is correct
11 Correct 2 ms 2284 KB Output is correct
12 Correct 2 ms 2284 KB Output is correct
13 Correct 3 ms 2284 KB Output is correct
14 Correct 2 ms 2412 KB Output is correct
15 Correct 2 ms 2412 KB Output is correct
16 Correct 18 ms 3564 KB Output is correct
17 Correct 18 ms 3540 KB Output is correct
18 Correct 18 ms 3564 KB Output is correct
19 Correct 37 ms 5740 KB Output is correct
20 Correct 40 ms 5740 KB Output is correct

Subtask #5
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2284 KB Output is correct
2 Correct 2 ms 2284 KB Output is correct
3 Correct 2 ms 2284 KB Output is correct
4 Correct 2 ms 2284 KB Output is correct
5 Correct 2 ms 2284 KB Output is correct
6 Correct 2 ms 2284 KB Output is correct
7 Correct 2 ms 2284 KB Output is correct
8 Correct 3 ms 2284 KB Output is correct
9 Correct 2 ms 2284 KB Output is correct
10 Correct 2 ms 2284 KB Output is correct
11 Correct 2 ms 2284 KB Output is correct
12 Correct 2 ms 2284 KB Output is correct
13 Correct 3 ms 2284 KB Output is correct
14 Correct 2 ms 2412 KB Output is correct
15 Correct 2 ms 2412 KB Output is correct
16 Correct 18 ms 3564 KB Output is correct
17 Correct 18 ms 3540 KB Output is correct
18 Correct 18 ms 3564 KB Output is correct
19 Correct 37 ms 5740 KB Output is correct
20 Correct 40 ms 5740 KB Output is correct
21 Correct 80 ms 7476 KB Output is correct
22 Correct 99 ms 8624 KB Output is correct
23 Correct 73 ms 8608 KB Output is correct
24 Correct 169 ms 17328 KB Output is correct
25 Correct 167 ms 17408 KB Output is correct