oj.uz

Submission #260322

# Submission time Handle Problem Language Result Execution time Memory
260322 2020-08-10T05:21:10 Z arnold518 Nautilus (BOI19_nautilus) C++14
100 / 100
 260 ms 157816 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 500;
const int MAXM = 5000;

int R, C, M;
char S[MAXN+10][MAXN+10];
char A[MAXM+10];
bitset<501> B[MAXN+10];
bitset<501> D[MAXN+10][MAXM+10];

int main()
{
	scanf("%d%d%d", &R, &C, &M);
	for(int i=1; i<=R; i++) scanf("%s", S[i]+1);
	scanf("%s", A+1);

	for(int i=1; i<=R; i++) for(int j=1; j<=C; j++) if(S[i][j]=='.') B[i][j-1]=1;
	for(int i=1; i<=R; i++) D[i][0]=B[i];

	for(int p=1; p<=M; p++)
	{
		if(A[p]=='N' || A[p]=='?')
		{
			for(int i=1; i<R; i++)
			{
				D[i][p]|=D[i+1][p-1];
			}
		}
		if(A[p]=='S' || A[p]=='?')
		{
			for(int i=2; i<=R; i++)
			{
				D[i][p]|=D[i-1][p-1];
			}	
		}
		if(A[p]=='E' || A[p]=='?')
		{
			for(int i=1; i<=R; i++)
			{
				D[i][p]|=D[i][p-1]<<1;
			}
		}
		if(A[p]=='W' || A[p]=='?')
		{
			for(int i=1; i<=R; i++)
			{
				D[i][p]|=D[i][p-1]>>1;
			}
		}
		for(int i=1; i<=R; i++) D[i][p]&=B[i];
	}
	int ans=0;
	for(int i=1; i<=R; i++) ans+=D[i][M].count();
	printf("%d\n", ans);
}

Compilation message

nautilus.cpp: In function 'int main()':
nautilus.cpp:19:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d", &R, &C, &M);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~
nautilus.cpp:20:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1; i<=R; i++) scanf("%s", S[i]+1);
                          ~~~~~^~~~~~~~~~~~~~
nautilus.cpp:21:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s", A+1);
  ~~~~~^~~~~~~~~~~

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1408 KB Output is correct
2 Correct 1 ms 1408 KB Output is correct
3 Correct 1 ms 1408 KB Output is correct
4 Correct 1 ms 1568 KB Output is correct
5 Correct 1 ms 1536 KB Output is correct
6 Correct 1 ms 1408 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1408 KB Output is correct
2 Correct 1 ms 1408 KB Output is correct
3 Correct 1 ms 1408 KB Output is correct
4 Correct 1 ms 1568 KB Output is correct
5 Correct 1 ms 1536 KB Output is correct
6 Correct 1 ms 1408 KB Output is correct
7 Correct 2 ms 1408 KB Output is correct
8 Correct 2 ms 1536 KB Output is correct
9 Correct 2 ms 1408 KB Output is correct
10 Correct 1 ms 1408 KB Output is correct
11 Correct 2 ms 1536 KB Output is correct
12 Correct 2 ms 1536 KB Output is correct
13 Correct 2 ms 1408 KB Output is correct
14 Correct 2 ms 1536 KB Output is correct
15 Correct 2 ms 1408 KB Output is correct
16 Correct 2 ms 1536 KB Output is correct
17 Correct 2 ms 1408 KB Output is correct
18 Correct 2 ms 1408 KB Output is correct
19 Correct 2 ms 1408 KB Output is correct
20 Correct 2 ms 1536 KB Output is correct
21 Correct 2 ms 1408 KB Output is correct

Subtask #3
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1408 KB Output is correct
2 Correct 1 ms 1408 KB Output is correct
3 Correct 1 ms 1408 KB Output is correct
4 Correct 1 ms 1568 KB Output is correct
5 Correct 1 ms 1536 KB Output is correct
6 Correct 1 ms 1408 KB Output is correct
7 Correct 2 ms 1408 KB Output is correct
8 Correct 2 ms 1536 KB Output is correct
9 Correct 2 ms 1408 KB Output is correct
10 Correct 1 ms 1408 KB Output is correct
11 Correct 2 ms 1536 KB Output is correct
12 Correct 2 ms 1536 KB Output is correct
13 Correct 2 ms 1408 KB Output is correct
14 Correct 2 ms 1536 KB Output is correct
15 Correct 2 ms 1408 KB Output is correct
16 Correct 2 ms 1536 KB Output is correct
17 Correct 2 ms 1408 KB Output is correct
18 Correct 2 ms 1408 KB Output is correct
19 Correct 2 ms 1408 KB Output is correct
20 Correct 2 ms 1536 KB Output is correct
21 Correct 2 ms 1408 KB Output is correct
22 Correct 183 ms 157432 KB Output is correct
23 Correct 185 ms 157560 KB Output is correct
24 Correct 213 ms 157452 KB Output is correct
25 Correct 216 ms 157432 KB Output is correct
26 Correct 204 ms 157560 KB Output is correct
27 Correct 247 ms 157432 KB Output is correct
28 Correct 229 ms 157688 KB Output is correct
29 Correct 225 ms 157816 KB Output is correct
30 Correct 224 ms 157688 KB Output is correct
31 Correct 223 ms 157816 KB Output is correct
32 Correct 260 ms 157688 KB Output is correct
33 Correct 258 ms 157688 KB Output is correct
34 Correct 259 ms 157676 KB Output is correct
35 Correct 259 ms 157816 KB Output is correct
36 Correct 260 ms 157816 KB Output is correct