#include <bits/stdc++.h>
using namespace std;
#define ll long long
ll INF=1e9,LINF=1e18,MOD=1e9+7; const ll MAXN=1e3+1,MAXS=2*MAXN;
#define fi first
#define se second
#define pii pair<int,int>
#define mid ((l+r)/2)
#define sz(a) (int((a).size()))
#define all(a) a.begin(),a.end()
#define endl "\n"
#define PRINT(x) cerr<<#x<<'-'<<x<<endl<<flush;
#define pb push_back
#define PRINTvec(x) { cerr<<#x<<"-"; for(auto i_:x) cerr<<i_<<" "; cerr<<endl; }
vector<vector<vector<int>>> dp(MAXN+1,vector<vector<int>>(2,vector<int>(2)));
vector<vector<vector<bool>>> start(MAXS+1,vector<vector<bool>>(MAXN+1,(vector<bool>(2))));
void Solve(){
int N,M; cin>>N>>M;
vector<vector<char>> a(N+3,vector<char>(M+3,'@'));
for(int i=1;i<=N;i++){
string s; cin>>s;
for(int j=1;j<=M;j++){
a[i][j]=s[j-1];
}
}
for(int i=1;i<=N;i++){
for(int j=1;j<=M;j++){
if(a[i][j]=='R' && a[i+1][j]=='G' && a[i+2][j]=='W') start[i+j][i][1]=true;
if(a[i][j]=='R' && a[i][j+1]=='G' && a[i][j+2]=='W') start[i+j][i][0]=true;
}
}
function<void(int&,int)> Smax=[&](int& a,int b){
a=max(a,b);
};
function<void()> Build=[&](){
for(int i=1;i<=N;i++){
for(int j=0;j<2;j++){
for(int k=0;k<2;k++){
dp[i][j][k]=-INF;
}
}
}
};
int res=0;
for(int z=2;z<=N+M;z++){
Build();
dp[0][0][0]=0;
for(int i=1;i<=N;i++){
for(int x=0;x<2;x++){
for(int y=0;y<2;y++){
Smax(dp[i][0][x],dp[i-1][x][y]);
if(start[z][i][0] && x==0 && y==0) Smax(dp[i][0][x],dp[i-1][x][y]+1);
if(start[z][i][1]) Smax(dp[i][1][x],dp[i-1][x][y]+1);
}
}
}
int tmp=0;
for(int i=0;i<2;i++){
for(int j=0;j<2;j++){
tmp=max(tmp,dp[N][i][j]);
}
}
res+=tmp;
}
cout<<res<<endl;
}
int main(){
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int t; t=1;
//cin>>t;
while(t--){
Solve();
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
141 ms |
141900 KB |
Output is correct |
2 |
Correct |
149 ms |
141980 KB |
Output is correct |
3 |
Correct |
156 ms |
141976 KB |
Output is correct |
4 |
Correct |
147 ms |
141860 KB |
Output is correct |
5 |
Correct |
141 ms |
141888 KB |
Output is correct |
6 |
Correct |
150 ms |
141900 KB |
Output is correct |
7 |
Correct |
150 ms |
141972 KB |
Output is correct |
8 |
Correct |
143 ms |
141968 KB |
Output is correct |
9 |
Correct |
170 ms |
142004 KB |
Output is correct |
10 |
Correct |
159 ms |
142140 KB |
Output is correct |
11 |
Correct |
140 ms |
141900 KB |
Output is correct |
12 |
Correct |
143 ms |
141896 KB |
Output is correct |
13 |
Correct |
149 ms |
141892 KB |
Output is correct |
14 |
Correct |
151 ms |
142080 KB |
Output is correct |
15 |
Correct |
142 ms |
141932 KB |
Output is correct |
16 |
Correct |
154 ms |
141928 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
141 ms |
141900 KB |
Output is correct |
2 |
Correct |
149 ms |
141980 KB |
Output is correct |
3 |
Correct |
156 ms |
141976 KB |
Output is correct |
4 |
Correct |
147 ms |
141860 KB |
Output is correct |
5 |
Correct |
141 ms |
141888 KB |
Output is correct |
6 |
Correct |
150 ms |
141900 KB |
Output is correct |
7 |
Correct |
150 ms |
141972 KB |
Output is correct |
8 |
Correct |
143 ms |
141968 KB |
Output is correct |
9 |
Correct |
170 ms |
142004 KB |
Output is correct |
10 |
Correct |
159 ms |
142140 KB |
Output is correct |
11 |
Correct |
140 ms |
141900 KB |
Output is correct |
12 |
Correct |
143 ms |
141896 KB |
Output is correct |
13 |
Correct |
149 ms |
141892 KB |
Output is correct |
14 |
Correct |
151 ms |
142080 KB |
Output is correct |
15 |
Correct |
142 ms |
141932 KB |
Output is correct |
16 |
Correct |
154 ms |
141928 KB |
Output is correct |
17 |
Correct |
152 ms |
141900 KB |
Output is correct |
18 |
Correct |
150 ms |
142040 KB |
Output is correct |
19 |
Correct |
143 ms |
142036 KB |
Output is correct |
20 |
Correct |
145 ms |
141976 KB |
Output is correct |
21 |
Correct |
143 ms |
141896 KB |
Output is correct |
22 |
Correct |
171 ms |
141972 KB |
Output is correct |
23 |
Correct |
146 ms |
141976 KB |
Output is correct |
24 |
Correct |
149 ms |
141932 KB |
Output is correct |
25 |
Correct |
147 ms |
141892 KB |
Output is correct |
26 |
Correct |
143 ms |
141972 KB |
Output is correct |
27 |
Correct |
150 ms |
141928 KB |
Output is correct |
28 |
Correct |
146 ms |
141916 KB |
Output is correct |
29 |
Correct |
143 ms |
141976 KB |
Output is correct |
30 |
Correct |
146 ms |
141964 KB |
Output is correct |
31 |
Correct |
153 ms |
141980 KB |
Output is correct |
32 |
Correct |
145 ms |
141936 KB |
Output is correct |
33 |
Correct |
158 ms |
141932 KB |
Output is correct |
34 |
Correct |
145 ms |
141900 KB |
Output is correct |
35 |
Correct |
146 ms |
141960 KB |
Output is correct |
36 |
Correct |
148 ms |
141860 KB |
Output is correct |
37 |
Correct |
154 ms |
141888 KB |
Output is correct |
38 |
Correct |
147 ms |
141972 KB |
Output is correct |
39 |
Correct |
158 ms |
141872 KB |
Output is correct |
40 |
Correct |
154 ms |
141928 KB |
Output is correct |
41 |
Correct |
144 ms |
141864 KB |
Output is correct |
42 |
Correct |
143 ms |
142000 KB |
Output is correct |
43 |
Correct |
150 ms |
141888 KB |
Output is correct |
44 |
Correct |
184 ms |
141900 KB |
Output is correct |
45 |
Correct |
142 ms |
141980 KB |
Output is correct |
46 |
Correct |
150 ms |
142028 KB |
Output is correct |
47 |
Correct |
142 ms |
141848 KB |
Output is correct |
48 |
Correct |
148 ms |
141972 KB |
Output is correct |
49 |
Correct |
143 ms |
141980 KB |
Output is correct |
50 |
Correct |
162 ms |
141892 KB |
Output is correct |
51 |
Correct |
185 ms |
141964 KB |
Output is correct |
52 |
Correct |
139 ms |
141932 KB |
Output is correct |
53 |
Correct |
143 ms |
141976 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
141 ms |
141900 KB |
Output is correct |
2 |
Correct |
149 ms |
141980 KB |
Output is correct |
3 |
Correct |
156 ms |
141976 KB |
Output is correct |
4 |
Correct |
147 ms |
141860 KB |
Output is correct |
5 |
Correct |
141 ms |
141888 KB |
Output is correct |
6 |
Correct |
150 ms |
141900 KB |
Output is correct |
7 |
Correct |
150 ms |
141972 KB |
Output is correct |
8 |
Correct |
143 ms |
141968 KB |
Output is correct |
9 |
Correct |
170 ms |
142004 KB |
Output is correct |
10 |
Correct |
159 ms |
142140 KB |
Output is correct |
11 |
Correct |
140 ms |
141900 KB |
Output is correct |
12 |
Correct |
143 ms |
141896 KB |
Output is correct |
13 |
Correct |
149 ms |
141892 KB |
Output is correct |
14 |
Correct |
151 ms |
142080 KB |
Output is correct |
15 |
Correct |
142 ms |
141932 KB |
Output is correct |
16 |
Correct |
154 ms |
141928 KB |
Output is correct |
17 |
Correct |
152 ms |
141900 KB |
Output is correct |
18 |
Correct |
150 ms |
142040 KB |
Output is correct |
19 |
Correct |
143 ms |
142036 KB |
Output is correct |
20 |
Correct |
145 ms |
141976 KB |
Output is correct |
21 |
Correct |
143 ms |
141896 KB |
Output is correct |
22 |
Correct |
171 ms |
141972 KB |
Output is correct |
23 |
Correct |
146 ms |
141976 KB |
Output is correct |
24 |
Correct |
149 ms |
141932 KB |
Output is correct |
25 |
Correct |
147 ms |
141892 KB |
Output is correct |
26 |
Correct |
143 ms |
141972 KB |
Output is correct |
27 |
Correct |
150 ms |
141928 KB |
Output is correct |
28 |
Correct |
146 ms |
141916 KB |
Output is correct |
29 |
Correct |
143 ms |
141976 KB |
Output is correct |
30 |
Correct |
146 ms |
141964 KB |
Output is correct |
31 |
Correct |
153 ms |
141980 KB |
Output is correct |
32 |
Correct |
145 ms |
141936 KB |
Output is correct |
33 |
Correct |
158 ms |
141932 KB |
Output is correct |
34 |
Correct |
145 ms |
141900 KB |
Output is correct |
35 |
Correct |
146 ms |
141960 KB |
Output is correct |
36 |
Correct |
148 ms |
141860 KB |
Output is correct |
37 |
Correct |
154 ms |
141888 KB |
Output is correct |
38 |
Correct |
147 ms |
141972 KB |
Output is correct |
39 |
Correct |
158 ms |
141872 KB |
Output is correct |
40 |
Correct |
154 ms |
141928 KB |
Output is correct |
41 |
Correct |
144 ms |
141864 KB |
Output is correct |
42 |
Correct |
143 ms |
142000 KB |
Output is correct |
43 |
Correct |
150 ms |
141888 KB |
Output is correct |
44 |
Correct |
184 ms |
141900 KB |
Output is correct |
45 |
Correct |
142 ms |
141980 KB |
Output is correct |
46 |
Correct |
150 ms |
142028 KB |
Output is correct |
47 |
Correct |
142 ms |
141848 KB |
Output is correct |
48 |
Correct |
148 ms |
141972 KB |
Output is correct |
49 |
Correct |
143 ms |
141980 KB |
Output is correct |
50 |
Correct |
162 ms |
141892 KB |
Output is correct |
51 |
Correct |
185 ms |
141964 KB |
Output is correct |
52 |
Correct |
139 ms |
141932 KB |
Output is correct |
53 |
Correct |
143 ms |
141976 KB |
Output is correct |
54 |
Runtime error |
222 ms |
262144 KB |
Execution killed with signal 11 |
55 |
Halted |
0 ms |
0 KB |
- |