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Submission #484493

# Submission time Handle Problem Language Result Execution time Memory
484493 2021-11-03T18:12:28 Z MilosMilutinovic Nautilus (BOI19_nautilus) C++14
0 / 100
 8 ms 5836 KB 
#include <bits/stdc++.h>
using namespace std;
#define rep(i,a,n) for (int i=a;i<n;i++)
#define per(i,a,n) for (int i=n-1;i>=a;i--)
#define pb push_back
#define mp make_pair
#define all(x) (x).begin(),(x).end()
#define fi first
#define se second
#define SZ(x) ((int)(x).size())
typedef vector<int> VI;
typedef long long ll;
typedef pair<int,int> PII;
typedef double db;
mt19937 mrand(random_device{}());
const ll mod=1000000007;
int rnd(int x) { return mrand() % x;}
ll powmod(ll a,ll b) {ll res=1;a%=mod; assert(b>=0); for(;b;b>>=1){if(b&1)res=res*a%mod;a=a*a%mod;}return res;}
ll gcd(ll a,ll b) { return b?gcd(b,a%b):a;}
// head

const int N=505;
int n,m,k,g[N][N];
char s[N],pt[N];
bool dp[N][N][N];
int main() {
	scanf("%d%d%d",&n,&m,&k);
	rep(i,1,n+1) {
		scanf("%s",s+1);
		rep(j,1,m+1) g[i][j]=(s[j]=='.'?1:0);
	}
	scanf("%s",pt+1);
	rep(i,1,n+1) rep(j,1,m+1) if (g[i][j]) dp[i][j][0]=true;
	rep(x,1,k+1) rep(i,1,n+1) rep(j,1,m+1) if (g[i][j]) {
		if (pt[x]=='N'||pt[x]=='?') dp[i][j][x]|=dp[i-1][j][x-1];
		if (pt[x]=='S'||pt[x]=='?') dp[i][j][x]|=dp[i+1][j][x-1];
		if (pt[x]=='W'||pt[x]=='?') dp[i][j][x]|=dp[i][j+1][x-1];
		if (pt[x]=='E'||pt[x]=='?') dp[i][j][x]|=dp[i][j-1][x-1];
	}
	int ans=0;
	rep(i,1,n+1) rep(j,1,m+1) if (dp[i][j][k]) ans++;
	printf("%d",ans);
}

Compilation message

nautilus.cpp: In function 'int main()':
nautilus.cpp:27:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |  scanf("%d%d%d",&n,&m,&k);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~
nautilus.cpp:29:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 |   scanf("%s",s+1);
      |   ~~~~~^~~~~~~~~~
nautilus.cpp:32:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   32 |  scanf("%s",pt+1);
      |  ~~~~~^~~~~~~~~~~

Subtask #1
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5836 KB Output is correct
2 Correct 7 ms 5708 KB Output is correct
3 Incorrect 8 ms 5708 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5836 KB Output is correct
2 Correct 7 ms 5708 KB Output is correct
3 Incorrect 8 ms 5708 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5836 KB Output is correct
2 Correct 7 ms 5708 KB Output is correct
3 Incorrect 8 ms 5708 KB Output isn't correct
4 Halted 0 ms 0 KB -