oj.uz

Submission #484499

# Submission time Handle Problem Language Result Execution time Memory
484499 2021-11-03T19:12:19 Z MilosMilutinovic Nautilus (BOI19_nautilus) C++14
66 / 100
 1000 ms 220484 KB 
#pragma GCC optimize ("Ofast")
#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:43:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 |  scanf("%d%d%d",&n,&m,&k);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~
nautilus.cpp:45:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   45 |   scanf("%s",s+1);
      |   ~~~~~^~~~~~~~~~
nautilus.cpp:48:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   48 |  scanf("%s",pt+1);
      |  ~~~~~^~~~~~~~~~~

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 103 ms 51524 KB Output is correct
2 Correct 19 ms 18452 KB Output is correct
3 Correct 11 ms 16204 KB Output is correct
4 Correct 8 ms 15156 KB Output is correct
5 Correct 8 ms 14804 KB Output is correct
6 Correct 7 ms 14412 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 103 ms 51524 KB Output is correct
2 Correct 19 ms 18452 KB Output is correct
3 Correct 11 ms 16204 KB Output is correct
4 Correct 8 ms 15156 KB Output is correct
5 Correct 8 ms 14804 KB Output is correct
6 Correct 7 ms 14412 KB Output is correct
7 Correct 151 ms 54876 KB Output is correct
8 Correct 29 ms 20980 KB Output is correct
9 Correct 10 ms 15564 KB Output is correct
10 Correct 8 ms 15000 KB Output is correct
11 Correct 8 ms 14572 KB Output is correct
12 Correct 203 ms 55636 KB Output is correct
13 Correct 146 ms 45636 KB Output is correct
14 Correct 80 ms 34388 KB Output is correct
15 Correct 11 ms 15692 KB Output is correct
16 Correct 8 ms 14540 KB Output is correct
17 Correct 213 ms 56004 KB Output is correct
18 Correct 163 ms 47812 KB Output is correct
19 Correct 55 ms 28996 KB Output is correct
20 Correct 21 ms 19584 KB Output is correct
21 Correct 8 ms 14540 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 103 ms 51524 KB Output is correct
2 Correct 19 ms 18452 KB Output is correct
3 Correct 11 ms 16204 KB Output is correct
4 Correct 8 ms 15156 KB Output is correct
5 Correct 8 ms 14804 KB Output is correct
6 Correct 7 ms 14412 KB Output is correct
7 Correct 151 ms 54876 KB Output is correct
8 Correct 29 ms 20980 KB Output is correct
9 Correct 10 ms 15564 KB Output is correct
10 Correct 8 ms 15000 KB Output is correct
11 Correct 8 ms 14572 KB Output is correct
12 Correct 203 ms 55636 KB Output is correct
13 Correct 146 ms 45636 KB Output is correct
14 Correct 80 ms 34388 KB Output is correct
15 Correct 11 ms 15692 KB Output is correct
16 Correct 8 ms 14540 KB Output is correct
17 Correct 213 ms 56004 KB Output is correct
18 Correct 163 ms 47812 KB Output is correct
19 Correct 55 ms 28996 KB Output is correct
20 Correct 21 ms 19584 KB Output is correct
21 Correct 8 ms 14540 KB Output is correct
22 Execution timed out 1093 ms 220484 KB Time limit exceeded
23 Halted 0 ms 0 KB -