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Submission #538380

# Submission time Handle Problem Language Result Execution time Memory
538380 2022-03-16T17:30:56 Z new_acc Dango Maker (JOI18_dango_maker) C++14
0 / 100
 1 ms 312 KB 
#include<bits/stdc++.h>
#define fi first
#define se second
#define pitem item*
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vl;
const int N=3e3+10;
bool ok[N][N][2];
char t[N][N];
int dp[N][3];
int n,m;
int diag(int a,int b){
	int k=0;
	while(a>0 and b<=m){
		k++;
		dp[k][0]=max(dp[k-1][2],dp[k-1][0])+ok[a][b][0];
		dp[k][1]=max({dp[k-1][2],dp[k-1][1],dp[k-1][0]})+ok[a][b][1];
		dp[k][2]=dp[k-1][1];
		a--,b++;
	}
	return max({dp[k][0],dp[k][1],dp[k][2]});
}
void solve(){
	cin>>n>>m;
	for(int i=1;i<=n;i++)
		for(int j=1;j<=m;j++) cin>>t[i][j];
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			if(t[i][j]=='R'){
				if(i+2<=n and t[i+1][j]=='G' and t[i+2][j]=='W') ok[i][j][0]=1;
				if(j+2<=m and t[i][j+1]=='G' and t[i][j+2]=='W') ok[i][j][1]=1;
			}
		}
	}
	int res=0;
	for(int i=1;i<=n;i++) res+=diag(i,1);
	for(int i=2;i<=m;i++) res+=diag(n,i);
	cout<<res<<"\n";
}
int main(){
	solve();
}

Subtask #1
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 1 ms 304 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Incorrect 0 ms 304 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 1 ms 304 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Incorrect 0 ms 304 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #3
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 1 ms 304 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Incorrect 0 ms 304 KB Output isn't correct
7 Halted 0 ms 0 KB -