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Submission #484498

# Submission time Handle Problem Language Result Execution time Memory
484498 2021-11-03T19:09:06 Z MilosMilutinovic Nautilus (BOI19_nautilus) C++14
66 / 100
 1000 ms 222996 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*10];
unordered_map<int,bool> dp[N][N];
bool valid(int x,int y) {
	return x>=1&&x<=n&&y>=1&&y<=m;
}
bool gao(int i,int j,int x) {
	if (!valid(i,j)||g[i][j]==0) return false;
	if (x==0) { return true; }
	if (dp[i][j].count(x)) return dp[i][j][x];
	bool ok=false;
	if (pt[x]=='N'||pt[x]=='?') ok|=gao(i+1,j,x-1);
	if (pt[x]=='S'||pt[x]=='?') ok|=gao(i-1,j,x-1);
	if (pt[x]=='W'||pt[x]=='?') ok|=gao(i,j+1,x-1);
	if (pt[x]=='E'||pt[x]=='?') ok|=gao(i,j-1,x-1);
	dp[i][j][x]=ok;
	return ok;
}
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);
	int ans=0;
	rep(i,1,n+1) rep(j,1,m+1) ans+=(gao(i,j,k)?1:0);
	printf("%d",ans);
}

Compilation message

nautilus.cpp: In function 'int main()':
nautilus.cpp:42:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |  scanf("%d%d%d",&n,&m,&k);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~
nautilus.cpp:44:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   44 |   scanf("%s",s+1);
      |   ~~~~~^~~~~~~~~~
nautilus.cpp:47:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   47 |  scanf("%s",pt+1);
      |  ~~~~~^~~~~~~~~~~

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 110 ms 51492 KB Output is correct
2 Correct 19 ms 18508 KB Output is correct
3 Correct 12 ms 16256 KB Output is correct
4 Correct 9 ms 15052 KB Output is correct
5 Correct 8 ms 14796 KB Output is correct
6 Correct 7 ms 14504 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 110 ms 51492 KB Output is correct
2 Correct 19 ms 18508 KB Output is correct
3 Correct 12 ms 16256 KB Output is correct
4 Correct 9 ms 15052 KB Output is correct
5 Correct 8 ms 14796 KB Output is correct
6 Correct 7 ms 14504 KB Output is correct
7 Correct 149 ms 55060 KB Output is correct
8 Correct 30 ms 20832 KB Output is correct
9 Correct 12 ms 15552 KB Output is correct
10 Correct 9 ms 14952 KB Output is correct
11 Correct 8 ms 14540 KB Output is correct
12 Correct 205 ms 55596 KB Output is correct
13 Correct 153 ms 45644 KB Output is correct
14 Correct 81 ms 34372 KB Output is correct
15 Correct 11 ms 15692 KB Output is correct
16 Correct 8 ms 14540 KB Output is correct
17 Correct 210 ms 55896 KB Output is correct
18 Correct 167 ms 47708 KB Output is correct
19 Correct 51 ms 28928 KB Output is correct
20 Correct 21 ms 19572 KB Output is correct
21 Correct 8 ms 14664 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 110 ms 51492 KB Output is correct
2 Correct 19 ms 18508 KB Output is correct
3 Correct 12 ms 16256 KB Output is correct
4 Correct 9 ms 15052 KB Output is correct
5 Correct 8 ms 14796 KB Output is correct
6 Correct 7 ms 14504 KB Output is correct
7 Correct 149 ms 55060 KB Output is correct
8 Correct 30 ms 20832 KB Output is correct
9 Correct 12 ms 15552 KB Output is correct
10 Correct 9 ms 14952 KB Output is correct
11 Correct 8 ms 14540 KB Output is correct
12 Correct 205 ms 55596 KB Output is correct
13 Correct 153 ms 45644 KB Output is correct
14 Correct 81 ms 34372 KB Output is correct
15 Correct 11 ms 15692 KB Output is correct
16 Correct 8 ms 14540 KB Output is correct
17 Correct 210 ms 55896 KB Output is correct
18 Correct 167 ms 47708 KB Output is correct
19 Correct 51 ms 28928 KB Output is correct
20 Correct 21 ms 19572 KB Output is correct
21 Correct 8 ms 14664 KB Output is correct
22 Execution timed out 1104 ms 222996 KB Time limit exceeded
23 Halted 0 ms 0 KB -