oj.uz

Submission #314624

# Submission time Handle Problem Language Result Execution time Memory
314624 2020-10-20T13:21:27 Z Dymo Nautilus (BOI19_nautilus) C++14
100 / 100
 190 ms 888 KB 
#include<bits/stdc++.h>

using namespace std;


#define pb	push_back
#define ll long long
#define pll pair<ll,ll>
#define ff first
#define ss second
#define endl "\n"
const ll maxn=5e2+50;
const ll mod =1e9+7;
const ll base=517;
bitset<maxn> a[maxn],dp[maxn][3];
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    if (fopen("GIDDY.inp", "r"))
    {
        freopen("GIDDY.inp", "r", stdin);
        freopen("GIDDY.out", "w", stdout) ;
    }
    ll n, m, q;
    cin>>n>>m>>q;
    for (int i=1; i<=n; i++)
    {
        for (int j=0; j<m; j++)
        {
            char x;
            cin>>x ;
            if (x=='.')
                a[i][j]=1;
                else a[i][j]=0;
        }
        dp[i][0]=a[i];
    }
    string s;
    cin>>s;
    s=" "+s;
    for (int i=1; i<=q; i++)
    {
        for (int t=1; t<=n; t++)
        {

            if (s[i]=='N')
                dp[t][i%2]=dp[t+1][1-i%2];
            else if (s[i]=='S')
                dp[t][i%2]=dp[t-1][1-i%2];
            else if (s[i]=='E')
                dp[t][i%2]=dp[t][1-i%2]<<1;
            else if (s[i]=='W')
                dp[t][i%2]=dp[t][1-i%2]>>1;
            else
            {
                dp[t][i%2]=((dp[t][1-i%2]<<1)|(dp[t][1-i%2]>>1)|(dp[t+1][1-i%2])|(dp[t-1][1-i%2]));
            }
            dp[t][i%2]&=a[t];
        }
    }
    ll ans=0;
    for (int i=1;i<=n;i++)
    {
     ans+=dp[i][q%2].count();
    }
    cout <<ans;

}

Compilation message

nautilus.cpp: In function 'int main()':
nautilus.cpp:24:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   24 |         freopen("GIDDY.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
nautilus.cpp:25:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   25 |         freopen("GIDDY.out", "w", stdout) ;
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 2 ms 384 KB Output is correct

Subtask #3
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 90 ms 768 KB Output is correct
23 Correct 98 ms 796 KB Output is correct
24 Correct 85 ms 768 KB Output is correct
25 Correct 86 ms 888 KB Output is correct
26 Correct 83 ms 768 KB Output is correct
27 Correct 143 ms 768 KB Output is correct
28 Correct 147 ms 768 KB Output is correct
29 Correct 159 ms 816 KB Output is correct
30 Correct 144 ms 768 KB Output is correct
31 Correct 140 ms 768 KB Output is correct
32 Correct 188 ms 888 KB Output is correct
33 Correct 186 ms 800 KB Output is correct
34 Correct 190 ms 768 KB Output is correct
35 Correct 190 ms 888 KB Output is correct
36 Correct 187 ms 768 KB Output is correct