oj.uz

Submission #285095

# Submission time Handle Problem Language Result Execution time Memory
285095 2020-08-28T10:13:31 Z 2fat2code Nautilus (BOI19_nautilus) C++17
100 / 100
 121 ms 768 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ld long double
#define all(a) (a).begin(), (a).end()
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#define sz() size()
#define fr first
#define sc second
//#define int long long
#define mp make_pair
#define rc(s) return cout<<s,0
#define rcc(s) cout<<s,exit(0)

const int mod = 1e9 + 7;

ll lgp(ll a,ll b){
    ll res = 1LL, pop = a;
    for(int i=0;(1LL << i)<=b;i++){
        if(b & (1LL << i)){
            res = (res * pop) % mod;
        }
        pop = (pop * pop) % mod;
    }
    return res;
}

ll inv(ll a){
    return lgp(a, mod - 2LL);
}

const int mmax = 505;

int n,m,k;
char c[mmax][mmax];
string s;
bitset<mmax>pr[mmax],curr[mmax],obstacole[mmax];

int32_t main(){
    ios_base::sync_with_stdio(false);cin.tie(0);cerr.tie(0);cout.tie(0);
    srand(chrono::steady_clock::now().time_since_epoch().count());
  //  freopen("input.in","r",stdin);
    cin >> n >> m >> k;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            cin >> c[i][j];
            curr[i][j] = (c[i][j] == '.' ? 1 : 0);
            obstacole[i][j] = (c[i][j] == '.' ? 1 : 0);
        }
    }
    cin >> s;
    for(int i=1;i<=k;i++){
        for(int j=1;j<=n;j++){
            swap(curr[j],pr[j]);
        }
        for(int j=1;j<=n;j++){
            curr[j].reset();
        }
        if(s[i - 1] == 'N' || s[i - 1] == '?'){
            for(int j=1;j<=n;j++){
                if(j <= n - 1){
                    curr[j] |= pr[j + 1];
                }
            }
        }
        if(s[i - 1] == 'S' || s[i - 1] == '?'){
            for(int j=1;j<=n;j++){
                if(j >= 2){
                    curr[j] |= pr[j - 1];
                }
            }
        }
        if(s[i - 1] == 'E' || s[i - 1] == '?'){
            for(int j=1;j<=n;j++){
                curr[j] |= (pr[j] << 1);
            }
        }
        if(s[i - 1] == 'W' || s[i - 1] == '?'){
            for(int j=1;j<=n;j++){
                curr[j] |= (pr[j] >> 1);
            }
        }
        for(int j=1;j<=n;j++){
            curr[j] &= obstacole[j];
        }
    }
    int ans = 0;
    for(int i=1;i<=n;i++){
        ans += curr[i].count();
    }
    cout << ans << '\n';
}

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 1 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 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 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 1 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 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 66 ms 744 KB Output is correct
23 Correct 67 ms 640 KB Output is correct
24 Correct 77 ms 640 KB Output is correct
25 Correct 77 ms 640 KB Output is correct
26 Correct 65 ms 640 KB Output is correct
27 Correct 82 ms 640 KB Output is correct
28 Correct 109 ms 760 KB Output is correct
29 Correct 85 ms 740 KB Output is correct
30 Correct 87 ms 768 KB Output is correct
31 Correct 84 ms 640 KB Output is correct
32 Correct 103 ms 640 KB Output is correct
33 Correct 99 ms 768 KB Output is correct
34 Correct 121 ms 640 KB Output is correct
35 Correct 109 ms 760 KB Output is correct
36 Correct 99 ms 640 KB Output is correct