Submission #392925

#	Time	Username	Problem	Language	Result	Execution time	Memory
392925		keta_tsimakuridze	Dango Maker (JOI18_dango_maker)	C++14	100 / 100	771 ms	159088 KiB

dango_maker

#include<bits/stdc++.h>
#define f first
#define s second
using namespace std;
const int N=3005,mod=1e9+7;
int ans[2*N],dp[N][N][4],n,m;
char a[N][N];
string s;
 main(){
	// t=1
	cin>>n>>m;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			cin>>a[i][j];
		}
	}
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			dp[i][j][0] = max(max(dp[i-1][j+1][0],dp[i-1][j+1][1]),dp[i-1][j+1][2]);
			if(a[i][j]=='G' && a[i-1][j]=='R' && a[i+1][j]=='W') {
				dp[i][j][1] = max(dp[i-1][j+1][0],dp[i-1][j+1][1])+1;
			} 
			if(a[i][j]=='G' && a[i][j-1]=='R' && a[i][j+1]=='W'){
				dp[i][j][2] = max(dp[i-1][j+1][0],dp[i-1][j+1][2])+1;
			}
			ans[i+j] = max(dp[i][j][0],max(dp[i][j][1],dp[i][j][2])); 
		}
	}
	int Ans=0;
	for(int i=1;i<=n+m;i++){
		Ans+=ans[i];
	}
	cout<<Ans;
}

Compilation message (stderr)

dango_maker.cpp:9:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    9 |  main(){
      |       ^

• Subtask 1: 13 / 13
• Subtask 2: 20 / 20
• Subtask 3: 67 / 67