oj.uz

Submission #59542

# Submission time Handle Problem Language Result Execution time Memory
59542 2018-07-22T09:33:31 Z zadrga Dango Maker (JOI18_dango_maker) C++14
33 / 100
 1184 ms 123804 KB 
/*
Idea:
- http://codeforces.com/blog/entry/57637?#comment-413356 (Problem 4)
*/

// 11.15

#include <bits/stdc++.h>
 
using namespace std;
 
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define INF (1 << 30)
#define MOD (1000 * 1000 * 1000 + 7)
#define maxn 3111

typedef long long ll;
typedef long double ld;
typedef pair<ll, ll> pii;

char str[maxn][maxn];
int dp[maxn][maxn][3];
int n, m;

bool can(int x, int y, char c){
	if(x < 1 || x > n || y < 1 && y > m)
		return 0;

	return (str[x][y] == c);
}

int fun(int x, int y, int t){ 				// 0 - nothing, 1 - horizontal, 2 - vertical
	if(x < 1 || x > n || y < 1 && y > m)
		return 0;

	int &cur = dp[x][y][t];
	if(cur != -1)
		return cur;

	int add = 0;
	if(t == 1 && can(x, y - 1, 'R') && can(x, y, 'G') && can(x, y + 1, 'W'))
		add = 1;

	if(t == 2 && can(x - 1, y, 'R') && can(x, y, 'G') && can(x + 1, y, 'W'))
		add = 1;

	if(t != 0 && add == 0){
		cur = -INF;
		return cur;
	}

	cur = 0;
	for(int i = 0; i < 3; i++){
		if(t + i == 3)
			continue;

		cur = max(cur, fun(x - 1, y + 1, i) + add);
	} 
	return cur;
}

int main(){
	scanf("%d%d", &n, &m);
	memset(dp, -1, sizeof(dp));

	for(int i = 1; i <= n; i++)
		scanf("%s", str[i] + 1);

	int ans = 0;
	for(int i = 1; i <= n; i++){
		int tren = max(fun(i, 1, 0), max(fun(i, 1, 1), fun(i, 1, 2)));
		ans += tren;
//		cout <<  i << " 1:" << tren << endl;
	}

	for(int i = 2; i <= m; i++){
		ans += max(fun(n, i, 0), max(fun(n, i, 1), fun(n, i, 2)));
	//	cout <<  i << " 1:" << tren << endl;
	}

	printf("%d\n", ans);
	return 0;
}

Compilation message

dango_maker.cpp: In function 'bool can(int, int, char)':
dango_maker.cpp:29:29: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
  if(x < 1 || x > n || y < 1 && y > m)
                       ~~~~~~^~~~~~~~
dango_maker.cpp: In function 'int fun(int, int, int)':
dango_maker.cpp:36:29: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
  if(x < 1 || x > n || y < 1 && y > m)
                       ~~~~~~^~~~~~~~
dango_maker.cpp: In function 'int main()':
dango_maker.cpp:66:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~
dango_maker.cpp:70:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s", str[i] + 1);
   ~~~~~^~~~~~~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 98 ms 113916 KB Output is correct
2 Correct 85 ms 114148 KB Output is correct
3 Correct 100 ms 114148 KB Output is correct
4 Correct 107 ms 114148 KB Output is correct
5 Correct 95 ms 114148 KB Output is correct
6 Correct 96 ms 114148 KB Output is correct
7 Correct 115 ms 114272 KB Output is correct
8 Correct 99 ms 114272 KB Output is correct
9 Correct 102 ms 114272 KB Output is correct
10 Correct 93 ms 114328 KB Output is correct
11 Correct 94 ms 114328 KB Output is correct
12 Correct 103 ms 114332 KB Output is correct
13 Correct 106 ms 114332 KB Output is correct
14 Correct 101 ms 114332 KB Output is correct
15 Correct 91 ms 114332 KB Output is correct
16 Correct 102 ms 114332 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 98 ms 113916 KB Output is correct
2 Correct 85 ms 114148 KB Output is correct
3 Correct 100 ms 114148 KB Output is correct
4 Correct 107 ms 114148 KB Output is correct
5 Correct 95 ms 114148 KB Output is correct
6 Correct 96 ms 114148 KB Output is correct
7 Correct 115 ms 114272 KB Output is correct
8 Correct 99 ms 114272 KB Output is correct
9 Correct 102 ms 114272 KB Output is correct
10 Correct 93 ms 114328 KB Output is correct
11 Correct 94 ms 114328 KB Output is correct
12 Correct 103 ms 114332 KB Output is correct
13 Correct 106 ms 114332 KB Output is correct
14 Correct 101 ms 114332 KB Output is correct
15 Correct 91 ms 114332 KB Output is correct
16 Correct 102 ms 114332 KB Output is correct
17 Correct 93 ms 114332 KB Output is correct
18 Correct 97 ms 114332 KB Output is correct
19 Correct 89 ms 114332 KB Output is correct
20 Correct 104 ms 114332 KB Output is correct
21 Correct 93 ms 114332 KB Output is correct
22 Correct 111 ms 114332 KB Output is correct
23 Correct 108 ms 114332 KB Output is correct
24 Correct 105 ms 114332 KB Output is correct
25 Correct 116 ms 114332 KB Output is correct
26 Correct 95 ms 114332 KB Output is correct
27 Correct 108 ms 114332 KB Output is correct
28 Correct 94 ms 114332 KB Output is correct
29 Correct 109 ms 114332 KB Output is correct
30 Correct 105 ms 114332 KB Output is correct
31 Correct 102 ms 114332 KB Output is correct
32 Correct 88 ms 114332 KB Output is correct
33 Correct 94 ms 114332 KB Output is correct
34 Correct 106 ms 114332 KB Output is correct
35 Correct 93 ms 114332 KB Output is correct
36 Correct 94 ms 114332 KB Output is correct
37 Correct 97 ms 114332 KB Output is correct
38 Correct 94 ms 114332 KB Output is correct
39 Correct 95 ms 114424 KB Output is correct
40 Correct 93 ms 114424 KB Output is correct
41 Correct 106 ms 114424 KB Output is correct
42 Correct 102 ms 114424 KB Output is correct
43 Correct 103 ms 114424 KB Output is correct
44 Correct 96 ms 114424 KB Output is correct
45 Correct 104 ms 114424 KB Output is correct
46 Correct 103 ms 114424 KB Output is correct
47 Correct 102 ms 114424 KB Output is correct
48 Correct 101 ms 114424 KB Output is correct
49 Correct 101 ms 114424 KB Output is correct
50 Correct 96 ms 114424 KB Output is correct
51 Correct 108 ms 114424 KB Output is correct
52 Correct 106 ms 114424 KB Output is correct
53 Correct 104 ms 114424 KB Output is correct

Subtask #3
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 98 ms 113916 KB Output is correct
2 Correct 85 ms 114148 KB Output is correct
3 Correct 100 ms 114148 KB Output is correct
4 Correct 107 ms 114148 KB Output is correct
5 Correct 95 ms 114148 KB Output is correct
6 Correct 96 ms 114148 KB Output is correct
7 Correct 115 ms 114272 KB Output is correct
8 Correct 99 ms 114272 KB Output is correct
9 Correct 102 ms 114272 KB Output is correct
10 Correct 93 ms 114328 KB Output is correct
11 Correct 94 ms 114328 KB Output is correct
12 Correct 103 ms 114332 KB Output is correct
13 Correct 106 ms 114332 KB Output is correct
14 Correct 101 ms 114332 KB Output is correct
15 Correct 91 ms 114332 KB Output is correct
16 Correct 102 ms 114332 KB Output is correct
17 Correct 93 ms 114332 KB Output is correct
18 Correct 97 ms 114332 KB Output is correct
19 Correct 89 ms 114332 KB Output is correct
20 Correct 104 ms 114332 KB Output is correct
21 Correct 93 ms 114332 KB Output is correct
22 Correct 111 ms 114332 KB Output is correct
23 Correct 108 ms 114332 KB Output is correct
24 Correct 105 ms 114332 KB Output is correct
25 Correct 116 ms 114332 KB Output is correct
26 Correct 95 ms 114332 KB Output is correct
27 Correct 108 ms 114332 KB Output is correct
28 Correct 94 ms 114332 KB Output is correct
29 Correct 109 ms 114332 KB Output is correct
30 Correct 105 ms 114332 KB Output is correct
31 Correct 102 ms 114332 KB Output is correct
32 Correct 88 ms 114332 KB Output is correct
33 Correct 94 ms 114332 KB Output is correct
34 Correct 106 ms 114332 KB Output is correct
35 Correct 93 ms 114332 KB Output is correct
36 Correct 94 ms 114332 KB Output is correct
37 Correct 97 ms 114332 KB Output is correct
38 Correct 94 ms 114332 KB Output is correct
39 Correct 95 ms 114424 KB Output is correct
40 Correct 93 ms 114424 KB Output is correct
41 Correct 106 ms 114424 KB Output is correct
42 Correct 102 ms 114424 KB Output is correct
43 Correct 103 ms 114424 KB Output is correct
44 Correct 96 ms 114424 KB Output is correct
45 Correct 104 ms 114424 KB Output is correct
46 Correct 103 ms 114424 KB Output is correct
47 Correct 102 ms 114424 KB Output is correct
48 Correct 101 ms 114424 KB Output is correct
49 Correct 101 ms 114424 KB Output is correct
50 Correct 96 ms 114424 KB Output is correct
51 Correct 108 ms 114424 KB Output is correct
52 Correct 106 ms 114424 KB Output is correct
53 Correct 104 ms 114424 KB Output is correct
54 Correct 100 ms 114424 KB Output is correct
55 Correct 530 ms 123796 KB Output is correct
56 Correct 106 ms 123796 KB Output is correct
57 Correct 289 ms 123796 KB Output is correct
58 Correct 245 ms 123796 KB Output is correct
59 Incorrect 1184 ms 123804 KB Output isn't correct
60 Halted 0 ms 0 KB -