oj.uz

Submission #402736

# Submission time Handle Problem Language Result Execution time Memory
402736 2021-05-12T10:05:38 Z cpp219 Dango Maker (JOI18_dango_maker) C++14
100 / 100
 720 ms 83520 KB 
#pragma GCC optimization "O2"
#pragma GCC optimization "unroll-loop"
#pragma GCC target ("avx2")

#include <bits/stdc++.h>
#define ll int
#define ld long double
#define fs first
#define sc second
using namespace std;
const ll N = 6e3 + 16;
const ll Log2 = 19;
const ll inf = 1e9 + 7;
typedef pair<ll,ll> LL;
///Road to EF/M

char a[N][N];
ll n,m,ans;
ll dx[3] = {0,1,0};
ll dy[3] = {0,0,1};
bool aval[N][N][5];

bool chk(ll x,ll y,ll dir){
    ll A2 = x + dx[dir],B2 = y + dy[dir];
    ll A1 = x - dx[dir],B1 = y - dy[dir];
    return a[A1][B1] == 'R' && a[A2][B2] == 'W' && a[x][y] == 'G';
}

ll dp[N][3],dia;

ll f(ll row,ll prv){
    if (row == dia) return 0;
    if (dp[row][prv] != -1) return dp[row][prv];
    ll ans = f(row + 1,0);
    if (!prv){
        if (aval[row][dia - row][1]) ans = max(ans,1 + f(row + 1,1));
        if (aval[row][dia - row][2]) ans = max(ans,1 + f(row + 1,2));
    }
    if (prv == 1){
        if (aval[row][dia - row][1]) ans = max(ans,1 + f(row + 1,1));
    }
    if (prv == 2){
        if (aval[row][dia - row][2]) ans = max(ans,1 + f(row + 1,2));
    }
    return dp[row][prv] = ans;
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);
    #define task "tst"
    if (fopen(task".inp", "r")){
        freopen(task".inp", "r", stdin);
        //freopen(task".out", "w", stdout);
    }
    cin>>n>>m;
    for (ll i = 1;i <= n;i++)
        for (ll j = 1;j <= m;j++) cin>>a[i][j];
    for (ll i = 1;i <= n;i++)
        for (ll j = 1;j <= m;j++){
            aval[i][j][1] = chk(i,j,1);
            aval[i][j][2] = chk(i,j,2);
        }
    //cout<<aval[3][2][2]; return 0;
    for (ll i = 2;i <= n + m;i++){
        memset(dp,-1,sizeof(dp)); dia = i;
        ans += f(1,0);
    }
    cout<<ans;
}

Compilation message

dango_maker.cpp:1: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    1 | #pragma GCC optimization "O2"
      | 
dango_maker.cpp:2: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    2 | #pragma GCC optimization "unroll-loop"
      | 
dango_maker.cpp: In function 'int main()':
dango_maker.cpp:53:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   53 |         freopen(task".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 460 KB Output is correct
21 Correct 1 ms 460 KB Output is correct
22 Correct 1 ms 460 KB Output is correct
23 Correct 1 ms 460 KB Output is correct
24 Correct 1 ms 460 KB Output is correct
25 Correct 1 ms 460 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 460 KB Output is correct
28 Correct 1 ms 460 KB Output is correct
29 Correct 1 ms 460 KB Output is correct
30 Correct 1 ms 460 KB Output is correct
31 Correct 1 ms 460 KB Output is correct
32 Correct 1 ms 460 KB Output is correct
33 Correct 1 ms 460 KB Output is correct
34 Correct 1 ms 460 KB Output is correct
35 Correct 1 ms 460 KB Output is correct
36 Correct 1 ms 460 KB Output is correct
37 Correct 1 ms 460 KB Output is correct
38 Correct 1 ms 460 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 1 ms 460 KB Output is correct
41 Correct 1 ms 460 KB Output is correct
42 Correct 1 ms 460 KB Output is correct
43 Correct 1 ms 460 KB Output is correct
44 Correct 1 ms 460 KB Output is correct
45 Correct 1 ms 460 KB Output is correct
46 Correct 1 ms 460 KB Output is correct
47 Correct 1 ms 460 KB Output is correct
48 Correct 1 ms 460 KB Output is correct
49 Correct 1 ms 460 KB Output is correct
50 Correct 1 ms 460 KB Output is correct
51 Correct 1 ms 460 KB Output is correct
52 Correct 1 ms 460 KB Output is correct
53 Correct 1 ms 460 KB Output is correct

Subtask #3
67.0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 460 KB Output is correct
21 Correct 1 ms 460 KB Output is correct
22 Correct 1 ms 460 KB Output is correct
23 Correct 1 ms 460 KB Output is correct
24 Correct 1 ms 460 KB Output is correct
25 Correct 1 ms 460 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 460 KB Output is correct
28 Correct 1 ms 460 KB Output is correct
29 Correct 1 ms 460 KB Output is correct
30 Correct 1 ms 460 KB Output is correct
31 Correct 1 ms 460 KB Output is correct
32 Correct 1 ms 460 KB Output is correct
33 Correct 1 ms 460 KB Output is correct
34 Correct 1 ms 460 KB Output is correct
35 Correct 1 ms 460 KB Output is correct
36 Correct 1 ms 460 KB Output is correct
37 Correct 1 ms 460 KB Output is correct
38 Correct 1 ms 460 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 1 ms 460 KB Output is correct
41 Correct 1 ms 460 KB Output is correct
42 Correct 1 ms 460 KB Output is correct
43 Correct 1 ms 460 KB Output is correct
44 Correct 1 ms 460 KB Output is correct
45 Correct 1 ms 460 KB Output is correct
46 Correct 1 ms 460 KB Output is correct
47 Correct 1 ms 460 KB Output is correct
48 Correct 1 ms 460 KB Output is correct
49 Correct 1 ms 460 KB Output is correct
50 Correct 1 ms 460 KB Output is correct
51 Correct 1 ms 460 KB Output is correct
52 Correct 1 ms 460 KB Output is correct
53 Correct 1 ms 460 KB Output is correct
54 Correct 80 ms 708 KB Output is correct
55 Correct 101 ms 24652 KB Output is correct
56 Correct 86 ms 784 KB Output is correct
57 Correct 43 ms 16628 KB Output is correct
58 Correct 79 ms 14508 KB Output is correct
59 Correct 685 ms 74672 KB Output is correct
60 Correct 716 ms 83440 KB Output is correct
61 Correct 720 ms 83328 KB Output is correct
62 Correct 72 ms 760 KB Output is correct
63 Correct 682 ms 81628 KB Output is correct
64 Correct 704 ms 83396 KB Output is correct
65 Correct 707 ms 83392 KB Output is correct
66 Correct 694 ms 83520 KB Output is correct
67 Correct 627 ms 83428 KB Output is correct
68 Correct 620 ms 83488 KB Output is correct
69 Correct 622 ms 83400 KB Output is correct
70 Correct 77 ms 15452 KB Output is correct
71 Correct 74 ms 15512 KB Output is correct
72 Correct 73 ms 15400 KB Output is correct
73 Correct 73 ms 15416 KB Output is correct
74 Correct 74 ms 15416 KB Output is correct
75 Correct 74 ms 15428 KB Output is correct
76 Correct 75 ms 15388 KB Output is correct
77 Correct 74 ms 15428 KB Output is correct
78 Correct 74 ms 15384 KB Output is correct
79 Correct 74 ms 15376 KB Output is correct
80 Correct 73 ms 15484 KB Output is correct
81 Correct 75 ms 15476 KB Output is correct
82 Correct 72 ms 15560 KB Output is correct
83 Correct 73 ms 15428 KB Output is correct
84 Correct 75 ms 15412 KB Output is correct
85 Correct 77 ms 15416 KB Output is correct
86 Correct 77 ms 15384 KB Output is correct
87 Correct 75 ms 15488 KB Output is correct
88 Correct 74 ms 15520 KB Output is correct
89 Correct 75 ms 15476 KB Output is correct
90 Correct 72 ms 15424 KB Output is correct