oj.uz

Submission #260064

# Submission time Handle Problem Language Result Execution time Memory
260064 2020-08-09T07:39:28 Z arnold518 Swap (BOI16_swap) C++14
68 / 100
 1000 ms 241520 KB 
#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
 
const int MAXN = 2e5;
 
int N, A[MAXN+10];
vector<int> V[MAXN+10], D[MAXN+10];

vector<vector<int>> dp[MAXN+10];
 
int get(int now, int pp)
{
	return lower_bound(V[now].begin(), V[now].end(), pp, greater<int>())-V[now].begin();
}

void solve(int now, int pp)
{
	if(now*2>N)
	{
		dp[now][pp].push_back(A[V[now][pp]]);
		return;
	}
	if(now*2+1>N)
	{
		if(A[V[now][pp]]>A[now*2])
		{
			dp[now][pp].push_back(A[now*2]);
			dp[now][pp].push_back(A[V[now][pp]]);
		}
		else
		{
			dp[now][pp].push_back(A[V[now][pp]]);
			dp[now][pp].push_back(A[now*2]);
		}
		return;
	}
 
	if(A[V[now][pp]]<A[now*2] && A[V[now][pp]]<A[now*2+1])
	{
		vector<int> &p=dp[now*2][0], &q=dp[now*2+1][0];
		dp[now][pp].push_back(A[V[now][pp]]);
		for(int k=0, i=0, j=0; i<p.size() || j<q.size(); k++)
		{
			for(int t=0; t<(1<<k) && i<p.size(); t++, i++) dp[now][pp].push_back(p[i]);
			for(int t=0; t<(1<<k) && j<q.size(); t++, j++) dp[now][pp].push_back(q[j]);
		}
		return;
	}
	if(A[now*2]<A[V[now][pp]] && A[now*2]<A[now*2+1])
	{
		vector<int> &p=dp[now*2][get(now*2, V[now][pp])], &q=dp[now*2+1][0];
		dp[now][pp].push_back(A[now*2]);
		for(int k=0, i=0, j=0; i<p.size() || j<q.size(); k++)
		{
			for(int t=0; t<(1<<k) && i<p.size(); t++, i++) dp[now][pp].push_back(p[i]);
			for(int t=0; t<(1<<k) && j<q.size(); t++, j++) dp[now][pp].push_back(q[j]);
		}
		return;
	}
	if(A[now*2+1]<A[V[now][pp]] && A[now*2+1]<A[now*2])
	{
		vector<int> &p1=dp[now*2][get(now*2, V[now][pp])], &q1=dp[now*2+1][1];
		vector<int> &p2=dp[now*2][0], &q2=dp[now*2+1][get(now*2+1, V[now][pp])];
		dp[now][pp].push_back(A[now*2+1]);
		int flag=0;
		for(int k=0, i=0, j=0; i<p1.size() || j<q1.size(); k++)
		{
			for(int t=0; t<(1<<k) && i<p1.size(); t++, i++)
			{
				if(flag==1) dp[now][pp].push_back(p1[i]);
				if(flag==2) dp[now][pp].push_back(p2[i]);
				if(flag==0)
				{
					if(p1[i]==p2[i]) dp[now][pp].push_back(p1[i]), flag=0;
					if(p1[i]<p2[i]) dp[now][pp].push_back(p1[i]), flag=1;
					if(p1[i]>p2[i]) dp[now][pp].push_back(p2[i]), flag=2;
				}
			}
			for(int t=0; t<(1<<k) && j<q1.size(); t++, j++)
			{
				if(flag==1) dp[now][pp].push_back(q1[j]);
				if(flag==2) dp[now][pp].push_back(q2[j]);
				if(flag==0)
				{
					if(q1[j]==q2[j]) dp[now][pp].push_back(q1[j]), flag=0;
					if(q1[j]<q2[j]) dp[now][pp].push_back(q1[j]), flag=1;
					if(q1[j]>q2[j]) dp[now][pp].push_back(q2[j]), flag=2;
				}
			}
		}
		return;
	}
}
 
int main()
{
	scanf("%d", &N);
	for(int i=1; i<=N; i++) scanf("%d", &A[i]);
 
	for(int i=1; i<=N; i++)
	{
		int now=i;
		while(now!=1)
		{
			V[i].push_back(now);
			if(now%2) V[i].push_back(now-1);
			now/=2;
		}
		V[i].push_back(1);
		dp[i].resize(V[i].size());
	}

	int p=0;
	for(int i=1; i<=N; i++)
	{
		if(__builtin_popcount(i)==1) p++;
		D[p].push_back(i);
	}

	for(int now=N, p=N; now>=1; now--)
	{
		for(; p>now*2+1; p--)
		{
			for(auto &it : dp[p])
			{
				it.clear();
				it.shrink_to_fit();
			}
			dp[p].clear();
			dp[p].shrink_to_fit();
		}
		for(int pp=0; pp<V[now].size(); pp++)
		{
			solve(now, pp);
		}
	}

	for(auto it : dp[1][0]) printf("%d ", it);
}

Compilation message

swap.cpp: In function 'void solve(int, int)':
swap.cpp:47:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int k=0, i=0, j=0; i<p.size() || j<q.size(); k++)
                          ~^~~~~~~~~
swap.cpp:47:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int k=0, i=0, j=0; i<p.size() || j<q.size(); k++)
                                        ~^~~~~~~~~
swap.cpp:49:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int t=0; t<(1<<k) && i<p.size(); t++, i++) dp[now][pp].push_back(p[i]);
                             ~^~~~~~~~~
swap.cpp:50:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int t=0; t<(1<<k) && j<q.size(); t++, j++) dp[now][pp].push_back(q[j]);
                             ~^~~~~~~~~
swap.cpp:58:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int k=0, i=0, j=0; i<p.size() || j<q.size(); k++)
                          ~^~~~~~~~~
swap.cpp:58:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int k=0, i=0, j=0; i<p.size() || j<q.size(); k++)
                                        ~^~~~~~~~~
swap.cpp:60:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int t=0; t<(1<<k) && i<p.size(); t++, i++) dp[now][pp].push_back(p[i]);
                             ~^~~~~~~~~
swap.cpp:61:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int t=0; t<(1<<k) && j<q.size(); t++, j++) dp[now][pp].push_back(q[j]);
                             ~^~~~~~~~~
swap.cpp:71:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int k=0, i=0, j=0; i<p1.size() || j<q1.size(); k++)
                          ~^~~~~~~~~~
swap.cpp:71:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int k=0, i=0, j=0; i<p1.size() || j<q1.size(); k++)
                                         ~^~~~~~~~~~
swap.cpp:73:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int t=0; t<(1<<k) && i<p1.size(); t++, i++)
                             ~^~~~~~~~~~
swap.cpp:84:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int t=0; t<(1<<k) && j<q1.size(); t++, j++)
                             ~^~~~~~~~~~
swap.cpp: In function 'int main()':
swap.cpp:137:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int pp=0; pp<V[now].size(); pp++)
                 ~~^~~~~~~~~~~~~~
swap.cpp:102:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~
swap.cpp:103:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1; i<=N; i++) scanf("%d", &A[i]);
                          ~~~~~^~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 14464 KB Output is correct
2 Correct 9 ms 14464 KB Output is correct
3 Correct 9 ms 14464 KB Output is correct
4 Correct 9 ms 14464 KB Output is correct
5 Correct 9 ms 14464 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 14464 KB Output is correct
2 Correct 9 ms 14464 KB Output is correct
3 Correct 9 ms 14464 KB Output is correct
4 Correct 9 ms 14464 KB Output is correct
5 Correct 9 ms 14464 KB Output is correct
6 Correct 9 ms 14464 KB Output is correct
7 Correct 9 ms 14464 KB Output is correct
8 Correct 10 ms 14464 KB Output is correct
9 Correct 12 ms 14464 KB Output is correct
10 Correct 9 ms 14464 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 14464 KB Output is correct
2 Correct 9 ms 14464 KB Output is correct
3 Correct 9 ms 14464 KB Output is correct
4 Correct 9 ms 14464 KB Output is correct
5 Correct 9 ms 14464 KB Output is correct
6 Correct 9 ms 14464 KB Output is correct
7 Correct 9 ms 14464 KB Output is correct
8 Correct 10 ms 14464 KB Output is correct
9 Correct 12 ms 14464 KB Output is correct
10 Correct 9 ms 14464 KB Output is correct
11 Correct 12 ms 15008 KB Output is correct
12 Correct 12 ms 15104 KB Output is correct
13 Correct 12 ms 15104 KB Output is correct
14 Correct 16 ms 15104 KB Output is correct
15 Correct 12 ms 15104 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 14464 KB Output is correct
2 Correct 9 ms 14464 KB Output is correct
3 Correct 9 ms 14464 KB Output is correct
4 Correct 9 ms 14464 KB Output is correct
5 Correct 9 ms 14464 KB Output is correct
6 Correct 9 ms 14464 KB Output is correct
7 Correct 9 ms 14464 KB Output is correct
8 Correct 10 ms 14464 KB Output is correct
9 Correct 12 ms 14464 KB Output is correct
10 Correct 9 ms 14464 KB Output is correct
11 Correct 12 ms 15008 KB Output is correct
12 Correct 12 ms 15104 KB Output is correct
13 Correct 12 ms 15104 KB Output is correct
14 Correct 16 ms 15104 KB Output is correct
15 Correct 12 ms 15104 KB Output is correct
16 Correct 314 ms 65336 KB Output is correct
17 Correct 311 ms 65144 KB Output is correct
18 Correct 301 ms 65144 KB Output is correct
19 Correct 314 ms 65144 KB Output is correct
20 Correct 311 ms 65280 KB Output is correct

Subtask #5
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 14464 KB Output is correct
2 Correct 9 ms 14464 KB Output is correct
3 Correct 9 ms 14464 KB Output is correct
4 Correct 9 ms 14464 KB Output is correct
5 Correct 9 ms 14464 KB Output is correct
6 Correct 9 ms 14464 KB Output is correct
7 Correct 9 ms 14464 KB Output is correct
8 Correct 10 ms 14464 KB Output is correct
9 Correct 12 ms 14464 KB Output is correct
10 Correct 9 ms 14464 KB Output is correct
11 Correct 12 ms 15008 KB Output is correct
12 Correct 12 ms 15104 KB Output is correct
13 Correct 12 ms 15104 KB Output is correct
14 Correct 16 ms 15104 KB Output is correct
15 Correct 12 ms 15104 KB Output is correct
16 Correct 314 ms 65336 KB Output is correct
17 Correct 311 ms 65144 KB Output is correct
18 Correct 301 ms 65144 KB Output is correct
19 Correct 314 ms 65144 KB Output is correct
20 Correct 311 ms 65280 KB Output is correct
21 Execution timed out 1104 ms 241520 KB Time limit exceeded
22 Halted 0 ms 0 KB -