oj.uz

Submission #414708

# Submission time Handle Problem Language Result Execution time Memory
414708 2021-05-31T05:17:32 Z juggernaut Nautilus (BOI19_nautilus) C++17
100 / 100
 569 ms 1220 KB 
#include<bits/stdc++.h>
#define fr first
#define sc second
using namespace std;
void usaco(string s){freopen((s+".in").c_str(),"r",stdin);freopen((s+".out").c_str(),"w",stdout);}
typedef long long ll;
#define USING_ORDERED_SET 0
#if USING_ORDERED_SET
#include<bits/extc++.h>
using namespace __gnu_pbds;
template<class T>using ordered_set=tree<T,null_type,less<T>,rb_tree_tag,tree_order_statistics_node_update>;
#endif
template<class T>void umax(T &a,T b){if(a<b)a=b;}
template<class T>void umin(T &a,T b){if(b<a)a=b;}
#ifdef IOI2021SG
    #define printl(args...)printf(args)
#else
    #define printl(args...)((void)0)
#endif
int n,m,q;
const int N=505;
int main(){
    #ifndef IOI2021SG
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    #endif
    cin>>n>>m>>q;
    bitset<2*N*N>valid,dp;
    for(int i=1;i<=n;i++)
    for(int j=1;j<=m;j++){
        char ch;
        cin>>ch;
        if(ch=='.')valid.set(i*N+j,1);
    }
    dp=valid;
    for(int i=1;i<=q;i++){
        char ch;
        cin>>ch;
        if(ch=='N')dp>>=N;
        else if(ch=='S')dp<<=N;
        else if(ch=='W')dp>>=1;
        else if(ch=='E')dp<<=1;
        else dp=((dp<<N)|(dp>>1)|(dp<<1)|(dp>>N));
        dp&=valid;
    }
    cout<<dp.count();
}
/*
5 9 7
...##....
..#.##..#
..#....##
.##...#..
....#....
WS?EE??
*/

Compilation message

nautilus.cpp: In function 'void usaco(std::string)':
nautilus.cpp:5:29: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 | void usaco(string s){freopen((s+".in").c_str(),"r",stdin);freopen((s+".out").c_str(),"w",stdout);}
      |                      ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
nautilus.cpp:5:66: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 | void usaco(string s){freopen((s+".in").c_str(),"r",stdin);freopen((s+".out").c_str(),"w",stdout);}
      |                                                           ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 844 KB Output is correct
2 Correct 3 ms 844 KB Output is correct
3 Correct 3 ms 844 KB Output is correct
4 Correct 4 ms 844 KB Output is correct
5 Correct 3 ms 972 KB Output is correct
6 Correct 3 ms 844 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 844 KB Output is correct
2 Correct 3 ms 844 KB Output is correct
3 Correct 3 ms 844 KB Output is correct
4 Correct 4 ms 844 KB Output is correct
5 Correct 3 ms 972 KB Output is correct
6 Correct 3 ms 844 KB Output is correct
7 Correct 5 ms 844 KB Output is correct
8 Correct 5 ms 864 KB Output is correct
9 Correct 6 ms 844 KB Output is correct
10 Correct 6 ms 844 KB Output is correct
11 Correct 5 ms 844 KB Output is correct
12 Correct 8 ms 844 KB Output is correct
13 Correct 9 ms 872 KB Output is correct
14 Correct 9 ms 844 KB Output is correct
15 Correct 10 ms 844 KB Output is correct
16 Correct 8 ms 844 KB Output is correct
17 Correct 11 ms 868 KB Output is correct
18 Correct 14 ms 844 KB Output is correct
19 Correct 11 ms 864 KB Output is correct
20 Correct 11 ms 868 KB Output is correct
21 Correct 14 ms 872 KB Output is correct

Subtask #3
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 844 KB Output is correct
2 Correct 3 ms 844 KB Output is correct
3 Correct 3 ms 844 KB Output is correct
4 Correct 4 ms 844 KB Output is correct
5 Correct 3 ms 972 KB Output is correct
6 Correct 3 ms 844 KB Output is correct
7 Correct 5 ms 844 KB Output is correct
8 Correct 5 ms 864 KB Output is correct
9 Correct 6 ms 844 KB Output is correct
10 Correct 6 ms 844 KB Output is correct
11 Correct 5 ms 844 KB Output is correct
12 Correct 8 ms 844 KB Output is correct
13 Correct 9 ms 872 KB Output is correct
14 Correct 9 ms 844 KB Output is correct
15 Correct 10 ms 844 KB Output is correct
16 Correct 8 ms 844 KB Output is correct
17 Correct 11 ms 868 KB Output is correct
18 Correct 14 ms 844 KB Output is correct
19 Correct 11 ms 864 KB Output is correct
20 Correct 11 ms 868 KB Output is correct
21 Correct 14 ms 872 KB Output is correct
22 Correct 198 ms 864 KB Output is correct
23 Correct 210 ms 1220 KB Output is correct
24 Correct 194 ms 1112 KB Output is correct
25 Correct 195 ms 1100 KB Output is correct
26 Correct 226 ms 1108 KB Output is correct
27 Correct 357 ms 1100 KB Output is correct
28 Correct 363 ms 1108 KB Output is correct
29 Correct 364 ms 1116 KB Output is correct
30 Correct 374 ms 1108 KB Output is correct
31 Correct 350 ms 1108 KB Output is correct
32 Correct 474 ms 1100 KB Output is correct
33 Correct 569 ms 1100 KB Output is correct
34 Correct 493 ms 1100 KB Output is correct
35 Correct 477 ms 1108 KB Output is correct
36 Correct 480 ms 1220 KB Output is correct