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Submission #798910

# Submission time Handle Problem Language Result Execution time Memory
798910 2023-07-31T06:55:15 Z boyliguanhan Swap (BOI16_swap) C++17
100 / 100
 602 ms 3132 KB 
#include<bits/stdc++.h>
#define T(a,b,c) make_tuple(a,b,c)
using namespace std;
int arr[400100],n;
int dp(int i,int v){
	if(i*2>n)
        return 0;
	int x = arr[2*i];
	if(i*2==n)
        return x<v;
	int y=arr[2*i+1];
	if(v<x&&v<y)
        return 0;
	if(x<v&&x<y)
        return 1 + dp(2*i,v);
	if(v<x)
		return min(dp(2*i,v),dp(2*i+1,v))+1;
	int l1 = dp(2*i,x), l2 = dp(2*i+1,x);
	if(l1<=l2)
        return 1 +dp(2*i+1,v);
	return 1+dp(2*i,v);
}
int main() {
    memset(arr, 7, sizeof arr);
    cin >> n;
    for(int i = 1; i <= n; i++)
        cin >> arr[i];
    for(int i = 1; i <= n; i++) {
        int &a=arr[i],&b=arr[i*2],&c=arr[i*2+1];
        if(a<b&&a<c);
        else if(b<a&&b<c)
            swap(a,b);
        else {
            swap(a,c);
            if(b>c)
                swap(b,c);
            if(dp(2*i,b)>dp(2*i+1,b)) swap(b,c);
        }
        cout << a << ' ';
    }
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1748 KB Output is correct
2 Correct 1 ms 1748 KB Output is correct
3 Correct 1 ms 1748 KB Output is correct
4 Correct 1 ms 1748 KB Output is correct
5 Correct 1 ms 1748 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1748 KB Output is correct
2 Correct 1 ms 1748 KB Output is correct
3 Correct 1 ms 1748 KB Output is correct
4 Correct 1 ms 1748 KB Output is correct
5 Correct 1 ms 1748 KB Output is correct
6 Correct 1 ms 1748 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 1 ms 1748 KB Output is correct
10 Correct 1 ms 1748 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1748 KB Output is correct
2 Correct 1 ms 1748 KB Output is correct
3 Correct 1 ms 1748 KB Output is correct
4 Correct 1 ms 1748 KB Output is correct
5 Correct 1 ms 1748 KB Output is correct
6 Correct 1 ms 1748 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 1 ms 1748 KB Output is correct
10 Correct 1 ms 1748 KB Output is correct
11 Correct 1 ms 1748 KB Output is correct
12 Correct 1 ms 1748 KB Output is correct
13 Correct 1 ms 1748 KB Output is correct
14 Correct 1 ms 1748 KB Output is correct
15 Correct 1 ms 1748 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1748 KB Output is correct
2 Correct 1 ms 1748 KB Output is correct
3 Correct 1 ms 1748 KB Output is correct
4 Correct 1 ms 1748 KB Output is correct
5 Correct 1 ms 1748 KB Output is correct
6 Correct 1 ms 1748 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 1 ms 1748 KB Output is correct
10 Correct 1 ms 1748 KB Output is correct
11 Correct 1 ms 1748 KB Output is correct
12 Correct 1 ms 1748 KB Output is correct
13 Correct 1 ms 1748 KB Output is correct
14 Correct 1 ms 1748 KB Output is correct
15 Correct 1 ms 1748 KB Output is correct
16 Correct 14 ms 2124 KB Output is correct
17 Correct 14 ms 2124 KB Output is correct
18 Correct 14 ms 2120 KB Output is correct
19 Correct 73 ms 2104 KB Output is correct
20 Correct 71 ms 2112 KB Output is correct

Subtask #5
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1748 KB Output is correct
2 Correct 1 ms 1748 KB Output is correct
3 Correct 1 ms 1748 KB Output is correct
4 Correct 1 ms 1748 KB Output is correct
5 Correct 1 ms 1748 KB Output is correct
6 Correct 1 ms 1748 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 1 ms 1748 KB Output is correct
10 Correct 1 ms 1748 KB Output is correct
11 Correct 1 ms 1748 KB Output is correct
12 Correct 1 ms 1748 KB Output is correct
13 Correct 1 ms 1748 KB Output is correct
14 Correct 1 ms 1748 KB Output is correct
15 Correct 1 ms 1748 KB Output is correct
16 Correct 14 ms 2124 KB Output is correct
17 Correct 14 ms 2124 KB Output is correct
18 Correct 14 ms 2120 KB Output is correct
19 Correct 73 ms 2104 KB Output is correct
20 Correct 71 ms 2112 KB Output is correct
21 Correct 57 ms 3132 KB Output is correct
22 Correct 56 ms 3120 KB Output is correct
23 Correct 70 ms 3120 KB Output is correct
24 Correct 598 ms 3128 KB Output is correct
25 Correct 602 ms 3132 KB Output is correct