//Never stop trying
#include "bits/stdc++.h"
using namespace std;
#define boost ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
typedef long long ll;
typedef string str;
typedef long double ld;
typedef pair<int, int> pi;
#define fi first
#define se second
typedef vector<int> vi;
typedef vector<pi> vpi;
#define pb push_back
#define eb emplace_back
#define sz(x) (int)x.size()
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define endl "\n"
#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
const int MOD = 1e9 + 7; //998244353
const ll INF = 1e18;
const int nx[4] = {0, 0, 1, -1}, ny[4] = {1, -1, 0, 0}; //right left down up
template<class T> using V = vector<T>;
template<class T> bool ckmin(T& a, const T& b) { return a > b ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }
ll cdiv(ll a, ll b) { return a / b + ((a ^ b) > 0 && a % b); } // divide a by b rounded up
//constexpr int log2(int x) { return 31 - __builtin_clz(x); } // floor(log2(x))
mt19937 rng(chrono::system_clock::now().time_since_epoch().count());
//mt19937_64 rng(chrono::system_clock::now().time_since_epoch().count());
ll random(ll a, ll b){
return a + rng() % (b - a + 1);
}
#ifndef LOCAL
#define cerr if(false) cerr
#endif
#define dbg(x) cerr << #x << " : " << x << endl;
#define dbgs(x,y) cerr << #x << " : " << x << " / " << #y << " : " << y << endl;
#define dbgv(v) cerr << #v << " : " << "[ "; for(auto it : v) cerr << it << ' '; cerr << ']' << endl;
#define here() cerr << "here" << endl;
void IO() {
#ifdef LOCAL
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif
}
/////////////////////////ONLY CLEAN CODES ALLOWED/////////////////////////
const int MX=3010;
int N,M,g[MX][MX];
int memo[MX][MX][2][2];
int solve(int x, int y, int m, int m2){
if(x<0 || y>=M) return 0;
int &ind=memo[x][y][m][m2];
if(ind!=-1) return ind;
int ans=solve(x-1,y+1,m2,0);
//down
if(x+2<N && g[x][y]==0 && g[x+1][y]==1 && g[x+2][y]==2){
if(m+m2==0) ckmax(ans,solve(x-1,y+1,m2,0)+1);
}
//right
if(y+2<M && g[x][y]==0 && g[x][y+1]==1 && g[x][y+2]==2){
ckmax(ans,solve(x-1,y+1,m2,1)+1);
}
return ind=ans;
}
int main() {
boost; IO();
cin>>N>>M;
FOR(i,0,N) FOR(j,0,M){
char c; cin>>c;
if(c=='R') g[i][j]=0;
else if(c=='G') g[i][j]=1;
else g[i][j]=2;
}
//FOR(i,0,N) FOR(j,0,M) cout << g[i][j] << " \n"[j==M-1];
memset(memo,-1,sizeof(memo));
int ans=0;
FOR(i,0,N) ans+=solve(i,0,0,0);
FOR(i,1,M) ans+=solve(N-1,i,0,0);
cout << ans << endl;
return 0;
}
//Change your approach
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
61 ms |
142148 KB |
Output is correct |
2 |
Correct |
60 ms |
142100 KB |
Output is correct |
3 |
Correct |
63 ms |
142108 KB |
Output is correct |
4 |
Correct |
70 ms |
142100 KB |
Output is correct |
5 |
Correct |
65 ms |
142148 KB |
Output is correct |
6 |
Correct |
69 ms |
142152 KB |
Output is correct |
7 |
Correct |
70 ms |
142160 KB |
Output is correct |
8 |
Correct |
62 ms |
142132 KB |
Output is correct |
9 |
Correct |
64 ms |
142088 KB |
Output is correct |
10 |
Correct |
61 ms |
142080 KB |
Output is correct |
11 |
Correct |
61 ms |
142112 KB |
Output is correct |
12 |
Correct |
64 ms |
142148 KB |
Output is correct |
13 |
Correct |
70 ms |
142048 KB |
Output is correct |
14 |
Correct |
67 ms |
142172 KB |
Output is correct |
15 |
Correct |
61 ms |
142148 KB |
Output is correct |
16 |
Correct |
61 ms |
142196 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
61 ms |
142148 KB |
Output is correct |
2 |
Correct |
60 ms |
142100 KB |
Output is correct |
3 |
Correct |
63 ms |
142108 KB |
Output is correct |
4 |
Correct |
70 ms |
142100 KB |
Output is correct |
5 |
Correct |
65 ms |
142148 KB |
Output is correct |
6 |
Correct |
69 ms |
142152 KB |
Output is correct |
7 |
Correct |
70 ms |
142160 KB |
Output is correct |
8 |
Correct |
62 ms |
142132 KB |
Output is correct |
9 |
Correct |
64 ms |
142088 KB |
Output is correct |
10 |
Correct |
61 ms |
142080 KB |
Output is correct |
11 |
Correct |
61 ms |
142112 KB |
Output is correct |
12 |
Correct |
64 ms |
142148 KB |
Output is correct |
13 |
Correct |
70 ms |
142048 KB |
Output is correct |
14 |
Correct |
67 ms |
142172 KB |
Output is correct |
15 |
Correct |
61 ms |
142148 KB |
Output is correct |
16 |
Correct |
61 ms |
142196 KB |
Output is correct |
17 |
Correct |
69 ms |
142116 KB |
Output is correct |
18 |
Correct |
61 ms |
142064 KB |
Output is correct |
19 |
Correct |
67 ms |
142092 KB |
Output is correct |
20 |
Correct |
60 ms |
142144 KB |
Output is correct |
21 |
Correct |
61 ms |
142100 KB |
Output is correct |
22 |
Correct |
62 ms |
142132 KB |
Output is correct |
23 |
Correct |
62 ms |
142136 KB |
Output is correct |
24 |
Correct |
62 ms |
142088 KB |
Output is correct |
25 |
Correct |
62 ms |
142148 KB |
Output is correct |
26 |
Correct |
61 ms |
142040 KB |
Output is correct |
27 |
Correct |
61 ms |
142172 KB |
Output is correct |
28 |
Correct |
61 ms |
142172 KB |
Output is correct |
29 |
Correct |
67 ms |
142140 KB |
Output is correct |
30 |
Correct |
62 ms |
142108 KB |
Output is correct |
31 |
Correct |
61 ms |
142120 KB |
Output is correct |
32 |
Correct |
63 ms |
142136 KB |
Output is correct |
33 |
Correct |
61 ms |
142176 KB |
Output is correct |
34 |
Correct |
64 ms |
142184 KB |
Output is correct |
35 |
Correct |
62 ms |
142112 KB |
Output is correct |
36 |
Correct |
70 ms |
142100 KB |
Output is correct |
37 |
Correct |
61 ms |
142144 KB |
Output is correct |
38 |
Correct |
61 ms |
142184 KB |
Output is correct |
39 |
Correct |
61 ms |
142184 KB |
Output is correct |
40 |
Correct |
61 ms |
142064 KB |
Output is correct |
41 |
Correct |
62 ms |
142100 KB |
Output is correct |
42 |
Correct |
62 ms |
142228 KB |
Output is correct |
43 |
Correct |
62 ms |
142176 KB |
Output is correct |
44 |
Correct |
62 ms |
142080 KB |
Output is correct |
45 |
Correct |
64 ms |
142148 KB |
Output is correct |
46 |
Correct |
64 ms |
142124 KB |
Output is correct |
47 |
Correct |
65 ms |
142172 KB |
Output is correct |
48 |
Correct |
62 ms |
142124 KB |
Output is correct |
49 |
Correct |
62 ms |
142148 KB |
Output is correct |
50 |
Correct |
63 ms |
142176 KB |
Output is correct |
51 |
Correct |
63 ms |
142128 KB |
Output is correct |
52 |
Correct |
62 ms |
142148 KB |
Output is correct |
53 |
Correct |
70 ms |
142112 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
61 ms |
142148 KB |
Output is correct |
2 |
Correct |
60 ms |
142100 KB |
Output is correct |
3 |
Correct |
63 ms |
142108 KB |
Output is correct |
4 |
Correct |
70 ms |
142100 KB |
Output is correct |
5 |
Correct |
65 ms |
142148 KB |
Output is correct |
6 |
Correct |
69 ms |
142152 KB |
Output is correct |
7 |
Correct |
70 ms |
142160 KB |
Output is correct |
8 |
Correct |
62 ms |
142132 KB |
Output is correct |
9 |
Correct |
64 ms |
142088 KB |
Output is correct |
10 |
Correct |
61 ms |
142080 KB |
Output is correct |
11 |
Correct |
61 ms |
142112 KB |
Output is correct |
12 |
Correct |
64 ms |
142148 KB |
Output is correct |
13 |
Correct |
70 ms |
142048 KB |
Output is correct |
14 |
Correct |
67 ms |
142172 KB |
Output is correct |
15 |
Correct |
61 ms |
142148 KB |
Output is correct |
16 |
Correct |
61 ms |
142196 KB |
Output is correct |
17 |
Correct |
69 ms |
142116 KB |
Output is correct |
18 |
Correct |
61 ms |
142064 KB |
Output is correct |
19 |
Correct |
67 ms |
142092 KB |
Output is correct |
20 |
Correct |
60 ms |
142144 KB |
Output is correct |
21 |
Correct |
61 ms |
142100 KB |
Output is correct |
22 |
Correct |
62 ms |
142132 KB |
Output is correct |
23 |
Correct |
62 ms |
142136 KB |
Output is correct |
24 |
Correct |
62 ms |
142088 KB |
Output is correct |
25 |
Correct |
62 ms |
142148 KB |
Output is correct |
26 |
Correct |
61 ms |
142040 KB |
Output is correct |
27 |
Correct |
61 ms |
142172 KB |
Output is correct |
28 |
Correct |
61 ms |
142172 KB |
Output is correct |
29 |
Correct |
67 ms |
142140 KB |
Output is correct |
30 |
Correct |
62 ms |
142108 KB |
Output is correct |
31 |
Correct |
61 ms |
142120 KB |
Output is correct |
32 |
Correct |
63 ms |
142136 KB |
Output is correct |
33 |
Correct |
61 ms |
142176 KB |
Output is correct |
34 |
Correct |
64 ms |
142184 KB |
Output is correct |
35 |
Correct |
62 ms |
142112 KB |
Output is correct |
36 |
Correct |
70 ms |
142100 KB |
Output is correct |
37 |
Correct |
61 ms |
142144 KB |
Output is correct |
38 |
Correct |
61 ms |
142184 KB |
Output is correct |
39 |
Correct |
61 ms |
142184 KB |
Output is correct |
40 |
Correct |
61 ms |
142064 KB |
Output is correct |
41 |
Correct |
62 ms |
142100 KB |
Output is correct |
42 |
Correct |
62 ms |
142228 KB |
Output is correct |
43 |
Correct |
62 ms |
142176 KB |
Output is correct |
44 |
Correct |
62 ms |
142080 KB |
Output is correct |
45 |
Correct |
64 ms |
142148 KB |
Output is correct |
46 |
Correct |
64 ms |
142124 KB |
Output is correct |
47 |
Correct |
65 ms |
142172 KB |
Output is correct |
48 |
Correct |
62 ms |
142124 KB |
Output is correct |
49 |
Correct |
62 ms |
142148 KB |
Output is correct |
50 |
Correct |
63 ms |
142176 KB |
Output is correct |
51 |
Correct |
63 ms |
142128 KB |
Output is correct |
52 |
Correct |
62 ms |
142148 KB |
Output is correct |
53 |
Correct |
70 ms |
142112 KB |
Output is correct |
54 |
Correct |
62 ms |
142060 KB |
Output is correct |
55 |
Correct |
71 ms |
154136 KB |
Output is correct |
56 |
Correct |
63 ms |
142132 KB |
Output is correct |
57 |
Correct |
65 ms |
150140 KB |
Output is correct |
58 |
Correct |
138 ms |
151072 KB |
Output is correct |
59 |
Correct |
777 ms |
186696 KB |
Output is correct |
60 |
Correct |
788 ms |
186564 KB |
Output is correct |
61 |
Correct |
792 ms |
186648 KB |
Output is correct |
62 |
Correct |
72 ms |
142092 KB |
Output is correct |
63 |
Correct |
778 ms |
186424 KB |
Output is correct |
64 |
Correct |
812 ms |
186700 KB |
Output is correct |
65 |
Correct |
806 ms |
186576 KB |
Output is correct |
66 |
Correct |
847 ms |
186692 KB |
Output is correct |
67 |
Correct |
648 ms |
186604 KB |
Output is correct |
68 |
Correct |
647 ms |
186584 KB |
Output is correct |
69 |
Correct |
649 ms |
187052 KB |
Output is correct |
70 |
Correct |
138 ms |
151144 KB |
Output is correct |
71 |
Correct |
139 ms |
151264 KB |
Output is correct |
72 |
Correct |
135 ms |
151112 KB |
Output is correct |
73 |
Correct |
133 ms |
151124 KB |
Output is correct |
74 |
Correct |
134 ms |
151084 KB |
Output is correct |
75 |
Correct |
142 ms |
151108 KB |
Output is correct |
76 |
Correct |
134 ms |
151208 KB |
Output is correct |
77 |
Correct |
135 ms |
151080 KB |
Output is correct |
78 |
Correct |
135 ms |
151028 KB |
Output is correct |
79 |
Correct |
134 ms |
151104 KB |
Output is correct |
80 |
Correct |
144 ms |
151324 KB |
Output is correct |
81 |
Correct |
133 ms |
151032 KB |
Output is correct |
82 |
Correct |
134 ms |
151148 KB |
Output is correct |
83 |
Correct |
138 ms |
151072 KB |
Output is correct |
84 |
Correct |
138 ms |
151284 KB |
Output is correct |
85 |
Correct |
133 ms |
151072 KB |
Output is correct |
86 |
Correct |
133 ms |
151040 KB |
Output is correct |
87 |
Correct |
133 ms |
151056 KB |
Output is correct |
88 |
Correct |
133 ms |
151032 KB |
Output is correct |
89 |
Correct |
135 ms |
151032 KB |
Output is correct |
90 |
Correct |
134 ms |
151200 KB |
Output is correct |