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Submission #145694

# Submission time Handle Problem Language Result Execution time Memory
145694 2019-08-20T18:58:55 Z TadijaSebez Dango Maker (JOI18_dango_maker) C++11
100 / 100
 392 ms 51612 KB 
#include <bits/stdc++.h>
using namespace std;
const int N=3005;
const int M=2*N;
const int inf=1e9+7;
bool can[M][N][2];
char s[N][N];
int dp[N][2][2];
void Clear(){ for(int i=0;i<N;i++) dp[i][0][0]=dp[i][1][0]=dp[i][0][1]=dp[i][1][1]=-inf;}
void ckmx(int &a, int b){ a=max(a,b);}
int main()
{
	int n,m;
	scanf("%i %i",&n,&m);
	for(int i=1;i<=n;i++) scanf("%s",s[i]+1);
	for(int i=1;i<=n;i++) for(int j=1;j<=m;j++)
	{
		if(s[i][j]=='R' && s[i][j+1]=='G' && s[i][j+2]=='W') can[i+j][i][0]=1;
		if(s[i][j]=='R' && s[i+1][j]=='G' && s[i+2][j]=='W') can[i+j][i][1]=1;
	}
	int ans=0;
	for(int z=2;z<=n+m;z++)
	{
		Clear();
		dp[0][0][0]=0;
		for(int i=1;i<=n;i++)
		{
			for(int x=0;x<2;x++) for(int y=0;y<2;y++)
			{
				ckmx(dp[i][0][x],dp[i-1][x][y]);
				if(can[z][i][0] && x==0 && y==0) ckmx(dp[i][0][x],dp[i-1][x][y]+1);
				if(can[z][i][1]) ckmx(dp[i][1][x],dp[i-1][x][y]+1);
			}
		}
		int tmp=0;
		for(int x=0;x<2;x++) for(int y=0;y<2;y++) ckmx(tmp,dp[n][x][y]);
		ans+=tmp;
	}
	printf("%i\n",ans);
	return 0;
}

Compilation message

dango_maker.cpp: In function 'int main()':
dango_maker.cpp:14:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%i %i",&n,&m);
  ~~~~~^~~~~~~~~~~~~~~
dango_maker.cpp:15:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1;i<=n;i++) scanf("%s",s[i]+1);
                        ~~~~~^~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 504 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 504 KB Output is correct
23 Correct 2 ms 504 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 504 KB Output is correct
29 Correct 2 ms 504 KB Output is correct
30 Correct 2 ms 504 KB Output is correct
31 Correct 3 ms 504 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 3 ms 504 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 504 KB Output is correct
37 Correct 2 ms 504 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 3 ms 376 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 3 ms 504 KB Output is correct
42 Correct 3 ms 504 KB Output is correct
43 Correct 2 ms 504 KB Output is correct
44 Correct 3 ms 376 KB Output is correct
45 Correct 2 ms 504 KB Output is correct
46 Correct 2 ms 504 KB Output is correct
47 Correct 2 ms 376 KB Output is correct
48 Correct 2 ms 376 KB Output is correct
49 Correct 2 ms 504 KB Output is correct
50 Correct 2 ms 376 KB Output is correct
51 Correct 2 ms 380 KB Output is correct
52 Correct 2 ms 376 KB Output is correct
53 Correct 2 ms 376 KB Output is correct

Subtask #3
67.0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 504 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 504 KB Output is correct
23 Correct 2 ms 504 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 504 KB Output is correct
29 Correct 2 ms 504 KB Output is correct
30 Correct 2 ms 504 KB Output is correct
31 Correct 3 ms 504 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 3 ms 504 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 504 KB Output is correct
37 Correct 2 ms 504 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 3 ms 376 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 3 ms 504 KB Output is correct
42 Correct 3 ms 504 KB Output is correct
43 Correct 2 ms 504 KB Output is correct
44 Correct 3 ms 376 KB Output is correct
45 Correct 2 ms 504 KB Output is correct
46 Correct 2 ms 504 KB Output is correct
47 Correct 2 ms 376 KB Output is correct
48 Correct 2 ms 376 KB Output is correct
49 Correct 2 ms 504 KB Output is correct
50 Correct 2 ms 376 KB Output is correct
51 Correct 2 ms 380 KB Output is correct
52 Correct 2 ms 376 KB Output is correct
53 Correct 2 ms 376 KB Output is correct
54 Correct 25 ms 888 KB Output is correct
55 Correct 123 ms 9684 KB Output is correct
56 Correct 27 ms 7800 KB Output is correct
57 Correct 67 ms 12536 KB Output is correct
58 Correct 58 ms 14200 KB Output is correct
59 Correct 392 ms 51416 KB Output is correct
60 Correct 382 ms 51180 KB Output is correct
61 Correct 380 ms 51320 KB Output is correct
62 Correct 22 ms 1144 KB Output is correct
63 Correct 372 ms 50448 KB Output is correct
64 Correct 306 ms 31992 KB Output is correct
65 Correct 307 ms 31992 KB Output is correct
66 Correct 308 ms 31988 KB Output is correct
67 Correct 338 ms 51612 KB Output is correct
68 Correct 336 ms 51448 KB Output is correct
69 Correct 343 ms 51564 KB Output is correct
70 Correct 48 ms 7672 KB Output is correct
71 Correct 48 ms 7672 KB Output is correct
72 Correct 49 ms 7676 KB Output is correct
73 Correct 48 ms 7672 KB Output is correct
74 Correct 49 ms 7672 KB Output is correct
75 Correct 48 ms 7676 KB Output is correct
76 Correct 48 ms 7672 KB Output is correct
77 Correct 48 ms 7804 KB Output is correct
78 Correct 48 ms 7672 KB Output is correct
79 Correct 48 ms 7672 KB Output is correct
80 Correct 48 ms 7672 KB Output is correct
81 Correct 48 ms 7672 KB Output is correct
82 Correct 48 ms 7676 KB Output is correct
83 Correct 48 ms 7672 KB Output is correct
84 Correct 48 ms 7672 KB Output is correct
85 Correct 48 ms 7676 KB Output is correct
86 Correct 49 ms 7672 KB Output is correct
87 Correct 48 ms 7708 KB Output is correct
88 Correct 49 ms 7676 KB Output is correct
89 Correct 49 ms 7640 KB Output is correct
90 Correct 48 ms 7672 KB Output is correct