oj.uz

Submission #110439

# Submission time Handle Problem Language Result Execution time Memory
110439 2019-05-10T20:53:31 Z pamaj Growing Vegetable is Fun 3 (JOI19_ho_t3) C++14
15 / 100
 8 ms 640 KB 
#include <bits/stdc++.h>
using namespace std;
const int maxn = 410;

int n;
long long ans = 1e18;
string s;

void generate(int a, int b, int c, string crct)
{
	if((int)crct.size() == n)
	{
		vector<int> v1r, v1g, v1y;
		vector<int> v2r, v2g, v2y;

		for(int i = 0; i < n; i++)
		{
			if(s[i] == 'R')
			{
				v1r.push_back(i);
			}
			if(s[i] == 'G')
			{
				v1g.push_back(i);
			}
			if(s[i] == 'Y')
			{
				v1y.push_back(i);
			}
			if(crct[i] == 'R')
			{
				v2r.push_back(i);
			}
			if(crct[i] == 'G')
			{
				v2g.push_back(i);
			}
			if(crct[i] == 'Y')
			{
				v2y.push_back(i);
			}
		}

		long long num_dif = 0;

		for(int i = 0; i < (int)v1y.size(); i++)
		{
			num_dif += abs(v1y[i] - v2y[i]);
		}
		for(int i = 0; i < (int)v1r.size(); i++)
		{
			num_dif += abs(v1r[i] - v2r[i]);
		}
		for(int i = 0; i < (int)v1g.size(); i++)
		{
			num_dif += abs(v1g[i] - v2g[i]);
		}

		ans = min(ans, num_dif/2);

		return;
	}

	else
	{
		if((int)crct.size())
		{
			if(a)
			{
				char last = crct[crct.size() - 1];
				if(last != 'R') generate(a - 1, b, c, crct + "R");
			}
			if(b)
			{
				char last = crct[crct.size() - 1];
				if(last != 'G') generate(a, b - 1, c, crct + "G");
			}
			if(c)
			{
				char last = crct[crct.size() - 1];
				if(last != 'Y') generate(a, b, c - 1, crct + "Y");
			}
		}
		else if((int)crct.size() == 0)
		{
			if(a) generate(a - 1, b, c, crct + "R");
			if(b) generate(a, b - 1, c, crct + "G");
			if(c) generate(a, b, c - 1, crct + "Y");
		}
	}
}

string vazia;

int qt[4];

int main()
{
	cin >> n;
	

	for(int i = 0; i < n; i++)
	{
		char c;
		cin >> c;
		int tipo;
		if(c == 'R') tipo = 1;
		else if(c == 'G') tipo = 2;
		else tipo = 3;

		qt[tipo]++;

		s += c;	
	}

	string crct;

	int metade = n/2 + (n % 2 == 1);

	int cont = 0;

	generate(qt[1], qt[2], qt[3], vazia);

	cout << (ans == (long long)1e18 ? -1 : ans) << "\n";

}

Compilation message

joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:118:6: warning: unused variable 'metade' [-Wunused-variable]
  int metade = n/2 + (n % 2 == 1);
      ^~~~~~
joi2019_ho_t3.cpp:120:6: warning: unused variable 'cont' [-Wunused-variable]
  int cont = 0;
      ^~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 5 ms 512 KB Output is correct
6 Correct 7 ms 384 KB Output is correct
7 Correct 4 ms 364 KB Output is correct
8 Correct 8 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Incorrect 3 ms 128 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #2
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 5 ms 512 KB Output is correct
6 Correct 7 ms 384 KB Output is correct
7 Correct 4 ms 364 KB Output is correct
8 Correct 8 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Incorrect 3 ms 128 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 4 ms 640 KB Output is correct
3 Correct 3 ms 640 KB Output is correct
4 Correct 3 ms 640 KB Output is correct
5 Correct 2 ms 640 KB Output is correct
6 Correct 2 ms 640 KB Output is correct
7 Correct 2 ms 640 KB Output is correct
8 Correct 3 ms 640 KB Output is correct
9 Correct 2 ms 640 KB Output is correct
10 Correct 3 ms 640 KB Output is correct
11 Correct 2 ms 640 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 3 ms 512 KB Output is correct
14 Correct 4 ms 512 KB Output is correct
15 Correct 2 ms 640 KB Output is correct
16 Correct 2 ms 640 KB Output is correct

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 5 ms 512 KB Output is correct
6 Correct 7 ms 384 KB Output is correct
7 Correct 4 ms 364 KB Output is correct
8 Correct 8 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Incorrect 3 ms 128 KB Output isn't correct
12 Halted 0 ms 0 KB -