oj.uz

Submission #328822

# Submission time Handle Problem Language Result Execution time Memory
328822 2020-11-18T06:54:45 Z egas Nautilus (BOI19_nautilus) C++14
66 / 100
 418 ms 262144 KB 
#include <bits/stdc++.h>
using namespace std;


int dp[101][101][5001];
int solve(int r,int c,int idx,vector<string> &a,string &b){
	//Invalid Cells
	if(r<0 or r>=a.size() or c<0 or c>=a[0].size())return 0;
	
	//Cell is land
	if(a[r][c]!='.')return 0;
	
	// Reached End
	if(idx==b.size()){		
		if(dp[r][c][idx]!=-1) return 0;		
		dp[r][c][idx]=1;	
		return 1;
	}
	
	// Already Visited
	if(dp[r][c][idx]!=-1) return 0;
	
	if(b[idx]=='?'){
		dp[r][c][idx] = solve(r,c-1,idx+1,a,b)
					 + solve(r,c+1,idx+1,a,b)
					 + solve(r-1,c,idx+1,a,b)
					 + solve(r+1,c,idx+1,a,b);
		return dp[r][c][idx];
		
	}else{
		int ans=0;
		if(b[idx]=='W')
			ans= solve(r,c-1,idx+1,a,b);
		else if(b[idx]=='E')
			ans = solve(r,c+1,idx+1,a,b);
		else if(b[idx]=='N')
			ans = solve(r-1,c,idx+1,a,b);
		else if(b[idx]=='S')
			ans = solve(r+1,c,idx+1,a,b);
		dp[r][c][idx]=ans;
		return dp[r][c][idx];
	}
	return 0;
}



int32_t main(){
    ios_base::sync_with_stdio(false);cin.tie(0);
	int r,c,m;
	cin >> r >> c >> m;
	vector<string> a;
	for(int i=0;i<r;i++){
		string temp;cin >> temp;
		a.push_back(temp);
	}
	
	string b;
	cin >> b;
	memset(dp,-1,sizeof dp);
	int res=0;
	for(int i=0;i<r;i++){
		for(int j=0;j<c;j++){
			res+=solve(i,j,0,a,b);
		}
	}	
	cout << res << endl;
    return 0;
}

Compilation message

nautilus.cpp: In function 'int solve(int, int, int, std::vector<std::__cxx11::basic_string<char> >&, std::string&)':
nautilus.cpp:8:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |  if(r<0 or r>=a.size() or c<0 or c>=a[0].size())return 0;
      |            ~^~~~~~~~~~
nautilus.cpp:8:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |  if(r<0 or r>=a.size() or c<0 or c>=a[0].size())return 0;
      |                                  ~^~~~~~~~~~~~~
nautilus.cpp:14:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |  if(idx==b.size()){
      |     ~~~^~~~~~~~~~

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 115 ms 200044 KB Output is correct
2 Correct 96 ms 200044 KB Output is correct
3 Correct 94 ms 200044 KB Output is correct
4 Correct 96 ms 200044 KB Output is correct
5 Correct 93 ms 200044 KB Output is correct
6 Correct 93 ms 200044 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 115 ms 200044 KB Output is correct
2 Correct 96 ms 200044 KB Output is correct
3 Correct 94 ms 200044 KB Output is correct
4 Correct 96 ms 200044 KB Output is correct
5 Correct 93 ms 200044 KB Output is correct
6 Correct 93 ms 200044 KB Output is correct
7 Correct 126 ms 200044 KB Output is correct
8 Correct 101 ms 200044 KB Output is correct
9 Correct 98 ms 200044 KB Output is correct
10 Correct 94 ms 200044 KB Output is correct
11 Correct 95 ms 200044 KB Output is correct
12 Correct 151 ms 200044 KB Output is correct
13 Correct 134 ms 200172 KB Output is correct
14 Correct 119 ms 200044 KB Output is correct
15 Correct 96 ms 200044 KB Output is correct
16 Correct 93 ms 200044 KB Output is correct
17 Correct 175 ms 200172 KB Output is correct
18 Correct 146 ms 200044 KB Output is correct
19 Correct 105 ms 200172 KB Output is correct
20 Correct 100 ms 200044 KB Output is correct
21 Correct 95 ms 200044 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 115 ms 200044 KB Output is correct
2 Correct 96 ms 200044 KB Output is correct
3 Correct 94 ms 200044 KB Output is correct
4 Correct 96 ms 200044 KB Output is correct
5 Correct 93 ms 200044 KB Output is correct
6 Correct 93 ms 200044 KB Output is correct
7 Correct 126 ms 200044 KB Output is correct
8 Correct 101 ms 200044 KB Output is correct
9 Correct 98 ms 200044 KB Output is correct
10 Correct 94 ms 200044 KB Output is correct
11 Correct 95 ms 200044 KB Output is correct
12 Correct 151 ms 200044 KB Output is correct
13 Correct 134 ms 200172 KB Output is correct
14 Correct 119 ms 200044 KB Output is correct
15 Correct 96 ms 200044 KB Output is correct
16 Correct 93 ms 200044 KB Output is correct
17 Correct 175 ms 200172 KB Output is correct
18 Correct 146 ms 200044 KB Output is correct
19 Correct 105 ms 200172 KB Output is correct
20 Correct 100 ms 200044 KB Output is correct
21 Correct 95 ms 200044 KB Output is correct
22 Runtime error 418 ms 262144 KB Execution killed with signal 11 (could be triggered by violating memory limits)
23 Halted 0 ms 0 KB -