oj.uz

Submission #432657

# Submission time Handle Problem Language Result Execution time Memory
432657 2021-06-18T12:08:52 Z frodakcin Mechanical Doll (IOI18_doll) C++11
100 / 100
 136 ms 11152 KB 
#include "doll.h"
#include <cstdio>
#include <cassert>
#include <vector>
#include <algorithm>

const int MN = 3e5;

int S;
std::vector<int> X, Y;
bool root[MN], state[MN];

int dfs(int l, int r, int ql)
{
	int n=++S; X.push_back(1), Y.push_back(1);
	if(r-l>2)
	{
		int m=l+(r-l)/2;
		if(ql < m) X[n-1] = dfs(l, m, ql);
		Y[n-1] = dfs(m, r, ql);
	}
	else
		root[n]=1;
	return n;
}

void create_circuit(int M, std::vector<int> A) {
	X.reserve(MN);
	Y.reserve(MN);

  int N = A.size();
  std::vector<int> C(M + 1);
	C[0]=A[0];
	if(N==1)
	{
		C[C[0]]=0;
		answer(C, X, Y);
		return;
	}

	for(int i=1;i<=M;++i)
		C[i]=-1;

	//for(auto x:A) printf("%d ", x); printf("\n");
	std::rotate(A.begin(), A.begin()+1, A.end());
	A.back()=0;
	if(A.size()&1)
		A.insert(A.begin(), -1);
	//for(auto x:A) printf("%d ", x); printf("\n");

	int d = 31 - __builtin_clz((int)A.size()-1);
	assert((1<<d+1) >= A.size() && A.size() > (1<<d));

	int top;
	top = dfs(0, 1<<d+1, (1<<d+1)-A.size());
	for(int& x:X) x*=-1;
	for(int& x:Y) x*=-1;

	int ctr=0;
	int n=-top;
	for(;n != 0;)
	{
		//printf("ideal: %d\n", n);
		if(n > 0)
			n = -top;
		else if(root[-n])
		{
			state[-n] ^= 1;
			assert(ctr < A.size());
			n = (state[-n] ? X[-n-1] : Y[-n-1]) = A[ctr++];
		}
		else
		{
			state[-n] ^= 1;
			n = state[-n] ? X[-n-1] : Y[-n-1];
		}
	}
	//printf("%d %lu\n", ctr, A.size());
	assert(ctr == A.size());

  answer(C, X, Y);
}

Compilation message

In file included from /usr/include/c++/10/cassert:44,
                 from doll.cpp:3:
doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:52:14: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
   52 |  assert((1<<d+1) >= A.size() && A.size() > (1<<d));
      |             ~^~
doll.cpp:52:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |  assert((1<<d+1) >= A.size() && A.size() > (1<<d));
      |         ~~~~~~~~~^~~~~~~~~~~
doll.cpp:52:42: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   52 |  assert((1<<d+1) >= A.size() && A.size() > (1<<d));
      |                                 ~~~~~~~~~^~~~~~~~
doll.cpp:55:19: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
   55 |  top = dfs(0, 1<<d+1, (1<<d+1)-A.size());
      |                  ~^~
doll.cpp:55:28: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
   55 |  top = dfs(0, 1<<d+1, (1<<d+1)-A.size());
      |                           ~^~
In file included from /usr/include/c++/10/cassert:44,
                 from doll.cpp:3:
doll.cpp:69:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |    assert(ctr < A.size());
      |           ~~~~^~~~~~~~~~
doll.cpp:79:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   79 |  assert(ctr == A.size());
      |         ~~~~^~~~~~~~~~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 54 ms 3656 KB Output is correct
3 Correct 43 ms 3696 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 12 ms 1484 KB Output is correct
6 Correct 66 ms 4760 KB Output is correct
7 Correct 0 ms 204 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 54 ms 3656 KB Output is correct
3 Correct 43 ms 3696 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 12 ms 1484 KB Output is correct
6 Correct 66 ms 4760 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 82 ms 5436 KB Output is correct
9 Correct 92 ms 6828 KB Output is correct
10 Correct 129 ms 8108 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 54 ms 3656 KB Output is correct
3 Correct 43 ms 3696 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 12 ms 1484 KB Output is correct
6 Correct 66 ms 4760 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 82 ms 5436 KB Output is correct
9 Correct 92 ms 6828 KB Output is correct
10 Correct 129 ms 8108 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 124 ms 9184 KB Output is correct
15 Correct 80 ms 5956 KB Output is correct
16 Correct 124 ms 9068 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 125 ms 11152 KB Output is correct
21 Correct 1 ms 288 KB Output is correct
22 Correct 0 ms 292 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct

Subtask #5
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 75 ms 4636 KB Output is correct
3 Correct 76 ms 5280 KB Output is correct
4 Correct 126 ms 6884 KB Output is correct

Subtask #6
56.0 / 56.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 75 ms 4636 KB Output is correct
3 Correct 76 ms 5280 KB Output is correct
4 Correct 126 ms 6884 KB Output is correct
5 Correct 121 ms 8876 KB Output is correct
6 Correct 128 ms 9044 KB Output is correct
7 Correct 125 ms 8980 KB Output is correct
8 Correct 121 ms 8732 KB Output is correct
9 Correct 75 ms 5700 KB Output is correct
10 Correct 136 ms 8556 KB Output is correct
11 Correct 123 ms 8388 KB Output is correct
12 Correct 76 ms 6484 KB Output is correct
13 Correct 78 ms 5816 KB Output is correct
14 Correct 79 ms 6980 KB Output is correct
15 Correct 85 ms 7104 KB Output is correct
16 Correct 2 ms 460 KB Output is correct
17 Correct 74 ms 6524 KB Output is correct
18 Correct 75 ms 5584 KB Output is correct
19 Correct 78 ms 6488 KB Output is correct
20 Correct 117 ms 10104 KB Output is correct
21 Correct 116 ms 8388 KB Output is correct
22 Correct 114 ms 8388 KB Output is correct