oj.uz

Submission #670321

# Submission time Handle Problem Language Result Execution time Memory
670321 2022-12-08T17:01:00 Z dozer Growing Vegetable is Fun 3 (JOI19_ho_t3) C++14
15 / 100
 67 ms 174416 KB 
#include <bits/stdc++.h>
using namespace std;
#define fileio() freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout)
#define fastio() cin.tie(0), ios_base::sync_with_stdio(0)
#define pb push_back
#define pii pair<int, int>
#define st first
#define nd second
#define endl "\n"
#define sp " "
#define N 405

int dp[N][N][N][4];
vector<int> r, g, y;
int n;

const int INF = 1e9 + 7;

int f(int i, int j, int k, int last)
{
	int t1 = INF, t2 = INF, t3 = INF;
	int pos = i + j + k + 1;
	if (pos > n) return 0;
	if (dp[i][j][k][last] != -1) return dp[i][j][k][last];
	if (i < r.size() && last != 0) t1 = f(i + 1, j, k, 0) + abs(r[i] - pos);
	if (j < g.size() && last != 1) t2 = f(i, j + 1, k, 1) + abs(g[j] - pos);
	if (k < y.size() && last != 2) t3 = f(i, j, k + 1, 2) + abs(y[k] - pos);
	int res = min(t1, t2);
	res = min(res, t3);
	res = min(res, INF);
	return dp[i][j][k][last] = res;
}

int32_t main()
{
	fastio();

	cin>>n;
	for (int i = 1; i <= n; i++)
	{
		char tmp;
		cin>>tmp;
		if (tmp == 'R') r.pb(i);
		else if (tmp == 'Y') y.pb(i);
		else g.pb(i);
	}

	for (int i = 0; i <= r.size() + 5; i++)
	{
		for (int j = 0; j <= g.size() + 5; j++)
		{
			for (int k = 0; k <= y.size() + 5; k++)
			{
				for (int last = 0; last <= 3; last++) dp[i][j][k][last] = -1;
			}
		}
	}
	int ans = f(0, 0, 0, 3);
	if (ans >= INF) cout<<-1<<endl;
	else cout<<ans / 2<<endl;

	cerr<<"time taken : "<<(float)clock() / CLOCKS_PER_SEC<<" seconds\n";
}

Compilation message

joi2019_ho_t3.cpp: In function 'int f(int, int, int, int)':
joi2019_ho_t3.cpp:25:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |  if (i < r.size() && last != 0) t1 = f(i + 1, j, k, 0) + abs(r[i] - pos);
      |      ~~^~~~~~~~~~
joi2019_ho_t3.cpp:26:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |  if (j < g.size() && last != 1) t2 = f(i, j + 1, k, 1) + abs(g[j] - pos);
      |      ~~^~~~~~~~~~
joi2019_ho_t3.cpp:27:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |  if (k < y.size() && last != 2) t3 = f(i, j, k + 1, 2) + abs(y[k] - pos);
      |      ~~^~~~~~~~~~
joi2019_ho_t3.cpp: In function 'int32_t main()':
joi2019_ho_t3.cpp:48:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |  for (int i = 0; i <= r.size() + 5; i++)
      |                  ~~^~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:50:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |   for (int j = 0; j <= g.size() + 5; j++)
      |                   ~~^~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:52:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |    for (int k = 0; k <= y.size() + 5; k++)
      |                    ~~^~~~~~~~~~~~~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 468 KB Output is correct
2 Correct 0 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 852 KB Output is correct
7 Correct 1 ms 852 KB Output is correct
8 Correct 0 ms 852 KB Output is correct
9 Correct 1 ms 980 KB Output is correct
10 Correct 1 ms 980 KB Output is correct
11 Incorrect 1 ms 852 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #2
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 468 KB Output is correct
2 Correct 0 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 852 KB Output is correct
7 Correct 1 ms 852 KB Output is correct
8 Correct 0 ms 852 KB Output is correct
9 Correct 1 ms 980 KB Output is correct
10 Correct 1 ms 980 KB Output is correct
11 Incorrect 1 ms 852 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 0 ms 468 KB Output is correct
2 Correct 66 ms 174408 KB Output is correct
3 Correct 60 ms 173548 KB Output is correct
4 Correct 61 ms 174348 KB Output is correct
5 Correct 61 ms 174380 KB Output is correct
6 Correct 67 ms 174316 KB Output is correct
7 Correct 65 ms 173572 KB Output is correct
8 Correct 65 ms 173580 KB Output is correct
9 Correct 62 ms 172748 KB Output is correct
10 Correct 61 ms 174392 KB Output is correct
11 Correct 62 ms 174416 KB Output is correct
12 Correct 20 ms 49208 KB Output is correct
13 Correct 31 ms 84436 KB Output is correct
14 Correct 44 ms 120332 KB Output is correct
15 Correct 66 ms 174404 KB Output is correct
16 Correct 60 ms 174388 KB Output is correct

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 468 KB Output is correct
2 Correct 0 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 852 KB Output is correct
7 Correct 1 ms 852 KB Output is correct
8 Correct 0 ms 852 KB Output is correct
9 Correct 1 ms 980 KB Output is correct
10 Correct 1 ms 980 KB Output is correct
11 Incorrect 1 ms 852 KB Output isn't correct
12 Halted 0 ms 0 KB -