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Submission #129180

# Submission time Handle Problem Language Result Execution time Memory
129180 2019-07-11T19:26:07 Z mahmoudbadawy Lamps (JOI19_lamps) C++17
10 / 100
 691 ms 143588 KB 
#include <bits/stdc++.h>

using namespace std;

const int N=1e6+5;

int mem[N][16];
int cost[16][16];
int eff[16][2];
int n;
string a,b;

vector< vector<int> > conv = {{}, {0}, {1}, {2}, {0,1} , {1,0}, {0,2}, {2,0}, {1,2}, {2,1} , {0,1,2}, {0,2,1}, {1,0,2}, {1,2,0}, {2,0,1}, {2,1,0}};

int get(int mas,int b)
{
	vector<int> v=conv[mas];
	for(int i:v)
	{
		if(i==0) b=0;
		else if(i==1) b=1;
		else b=1-b;
	}
	return b;
}

int calc(int a,int b)
{
	vector<int> x=conv[a],y=conv[b];
	int j=0;
	for(int i=0;i<x.size()&&j<y.size();i++)
	{
		if(x[i]==y[j]) j++;
	}
	return y.size()-j;
}

int go(int ind,int mas)
{
	//cout << ind << " " << mas << endl;
	if(ind>=n) return 0;
	if(mem[ind][mas]!=-1) return mem[ind][mas];
	mem[ind][mas]=(1<<30);
	for(int i=0;i<16;i++)
	{
		if(eff[i][a[ind]-'0']==b[ind]-'0')
		{
			mem[ind][mas]=min(mem[ind][mas],cost[mas][i]+go(ind+1,i));
		}
	}
	return mem[ind][mas];
}

int main()
{
	cin >> n >> a >> b;
	memset(mem,-1,sizeof mem);
	for(int i=0;i<16;i++)
	{
		for(int j=0;j<16;j++)
		{
			cost[i][j]=calc(i,j);
		}
	}
	//cout << "OK" << endl;
	for(int i=0;i<16;i++)
	{
		for(int k=0;k<2;k++)
			eff[i][k]=get(i,k);
	}
	//cout << "OK" << endl;
	cout << go(0,0) << endl;
}

Compilation message

lamp.cpp: In function 'int calc(int, int)':
lamp.cpp:31:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<x.size()&&j<y.size();i++)
              ~^~~~~~~~~
lamp.cpp:31:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<x.size()&&j<y.size();i++)
                          ~^~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 62968 KB Output is correct
2 Correct 54 ms 62968 KB Output is correct
3 Correct 54 ms 62968 KB Output is correct
4 Correct 54 ms 62968 KB Output is correct
5 Correct 59 ms 62968 KB Output is correct
6 Correct 54 ms 62968 KB Output is correct
7 Correct 54 ms 62968 KB Output is correct
8 Correct 54 ms 62972 KB Output is correct
9 Correct 54 ms 62968 KB Output is correct
10 Correct 54 ms 62968 KB Output is correct
11 Correct 54 ms 62888 KB Output is correct
12 Correct 54 ms 62968 KB Output is correct
13 Correct 54 ms 62968 KB Output is correct
14 Correct 54 ms 62968 KB Output is correct
15 Correct 54 ms 62968 KB Output is correct
16 Correct 54 ms 62968 KB Output is correct
17 Correct 54 ms 62968 KB Output is correct
18 Correct 55 ms 62968 KB Output is correct
19 Correct 54 ms 62968 KB Output is correct
20 Correct 54 ms 62968 KB Output is correct
21 Correct 54 ms 62968 KB Output is correct
22 Correct 55 ms 62968 KB Output is correct
23 Correct 54 ms 62968 KB Output is correct
24 Correct 54 ms 62968 KB Output is correct
25 Correct 54 ms 62968 KB Output is correct
26 Correct 54 ms 62968 KB Output is correct
27 Correct 54 ms 63096 KB Output is correct
28 Correct 54 ms 62940 KB Output is correct
29 Correct 54 ms 62968 KB Output is correct
30 Correct 63 ms 62968 KB Output is correct
31 Correct 55 ms 62968 KB Output is correct
32 Correct 60 ms 62968 KB Output is correct
33 Correct 54 ms 62968 KB Output is correct
34 Correct 54 ms 62968 KB Output is correct

Subtask #2
0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 62968 KB Output is correct
2 Correct 54 ms 62968 KB Output is correct
3 Correct 54 ms 62968 KB Output is correct
4 Correct 54 ms 62968 KB Output is correct
5 Correct 59 ms 62968 KB Output is correct
6 Correct 54 ms 62968 KB Output is correct
7 Correct 54 ms 62968 KB Output is correct
8 Correct 54 ms 62972 KB Output is correct
9 Correct 54 ms 62968 KB Output is correct
10 Correct 54 ms 62968 KB Output is correct
11 Correct 54 ms 62888 KB Output is correct
12 Correct 54 ms 62968 KB Output is correct
13 Correct 54 ms 62968 KB Output is correct
14 Correct 54 ms 62968 KB Output is correct
15 Correct 54 ms 62968 KB Output is correct
16 Correct 54 ms 62968 KB Output is correct
17 Correct 54 ms 62968 KB Output is correct
18 Correct 55 ms 62968 KB Output is correct
19 Correct 54 ms 62968 KB Output is correct
20 Correct 54 ms 62968 KB Output is correct
21 Correct 54 ms 62968 KB Output is correct
22 Correct 55 ms 62968 KB Output is correct
23 Correct 54 ms 62968 KB Output is correct
24 Correct 54 ms 62968 KB Output is correct
25 Correct 54 ms 62968 KB Output is correct
26 Correct 54 ms 62968 KB Output is correct
27 Correct 54 ms 63096 KB Output is correct
28 Correct 54 ms 62940 KB Output is correct
29 Correct 54 ms 62968 KB Output is correct
30 Correct 63 ms 62968 KB Output is correct
31 Correct 55 ms 62968 KB Output is correct
32 Correct 60 ms 62968 KB Output is correct
33 Correct 54 ms 62968 KB Output is correct
34 Correct 54 ms 62968 KB Output is correct
35 Correct 55 ms 63096 KB Output is correct
36 Correct 55 ms 63096 KB Output is correct
37 Correct 55 ms 63096 KB Output is correct
38 Correct 55 ms 63096 KB Output is correct
39 Correct 55 ms 63096 KB Output is correct
40 Incorrect 55 ms 63096 KB Output isn't correct
41 Halted 0 ms 0 KB -

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 62968 KB Output is correct
2 Correct 55 ms 62940 KB Output is correct
3 Correct 54 ms 63068 KB Output is correct
4 Correct 54 ms 62968 KB Output is correct
5 Correct 54 ms 62968 KB Output is correct
6 Correct 54 ms 62968 KB Output is correct
7 Correct 651 ms 143464 KB Output is correct
8 Correct 679 ms 143464 KB Output is correct
9 Correct 659 ms 143336 KB Output is correct
10 Correct 658 ms 143588 KB Output is correct
11 Correct 659 ms 143460 KB Output is correct
12 Correct 691 ms 143416 KB Output is correct
13 Correct 676 ms 143272 KB Output is correct
14 Correct 663 ms 143464 KB Output is correct

Subtask #4
0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 62968 KB Output is correct
2 Correct 54 ms 62968 KB Output is correct
3 Correct 54 ms 62968 KB Output is correct
4 Correct 54 ms 62968 KB Output is correct
5 Correct 59 ms 62968 KB Output is correct
6 Correct 54 ms 62968 KB Output is correct
7 Correct 54 ms 62968 KB Output is correct
8 Correct 54 ms 62972 KB Output is correct
9 Correct 54 ms 62968 KB Output is correct
10 Correct 54 ms 62968 KB Output is correct
11 Correct 54 ms 62888 KB Output is correct
12 Correct 54 ms 62968 KB Output is correct
13 Correct 54 ms 62968 KB Output is correct
14 Correct 54 ms 62968 KB Output is correct
15 Correct 54 ms 62968 KB Output is correct
16 Correct 54 ms 62968 KB Output is correct
17 Correct 54 ms 62968 KB Output is correct
18 Correct 55 ms 62968 KB Output is correct
19 Correct 54 ms 62968 KB Output is correct
20 Correct 54 ms 62968 KB Output is correct
21 Correct 54 ms 62968 KB Output is correct
22 Correct 55 ms 62968 KB Output is correct
23 Correct 54 ms 62968 KB Output is correct
24 Correct 54 ms 62968 KB Output is correct
25 Correct 54 ms 62968 KB Output is correct
26 Correct 54 ms 62968 KB Output is correct
27 Correct 54 ms 63096 KB Output is correct
28 Correct 54 ms 62940 KB Output is correct
29 Correct 54 ms 62968 KB Output is correct
30 Correct 63 ms 62968 KB Output is correct
31 Correct 55 ms 62968 KB Output is correct
32 Correct 60 ms 62968 KB Output is correct
33 Correct 54 ms 62968 KB Output is correct
34 Correct 54 ms 62968 KB Output is correct
35 Correct 55 ms 63096 KB Output is correct
36 Correct 55 ms 63096 KB Output is correct
37 Correct 55 ms 63096 KB Output is correct
38 Correct 55 ms 63096 KB Output is correct
39 Correct 55 ms 63096 KB Output is correct
40 Incorrect 55 ms 63096 KB Output isn't correct
41 Halted 0 ms 0 KB -