Submission #1066144

#	Time	Username	Problem	Language	Result	Execution time	Memory
1066144		Malix	Dango Maker (JOI18_dango_maker)	C++14	100 / 100	1016 ms	18544 KiB

dango_maker

#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vii;
typedef pair<int,int> pi;
typedef vector<pi> pii;
typedef tuple<int,int,int> tii;
typedef vector<ll> li;
typedef vector<li> lii;
 
#define REP(i,a,b) for(int i=a;i<b;i++)
#define F first
#define S second
#define PB push_back
#define MP make_pair
#define LSOne(s) ((s)&(-s))
 
ll INF=1000000000000000010;
int inf=1e9+10;
ll M=1e9+7;

int main() {   
    int n,m;cin>>n>>m;
    vector<vector<char>> a(n,vector<char>(m));
    REP(i,0,n)REP(j,0,m)cin>>a[i][j];
    int ans=0;
    REP(j,0,n+m){
        vii dp(n+1,vi(3,0));
        REP(i,0,n){
            int pos=j-i;
            dp[i+1][0]=max({dp[i][0],dp[i][1],dp[i][2]});
            if(pos<0||pos>=m||a[i][pos]!='G')continue;
            if(pos-1>=0&&pos+1<m&&a[i][pos-1]=='R'&&a[i][pos+1]=='W')dp[i+1][1]=max(dp[i][0],dp[i][1])+1;
            if(i-1>=0&&i+1<n&&a[i-1][pos]=='R'&&a[i+1][pos]=='W')dp[i+1][2]=max(dp[i][0],dp[i][2])+1;
        }
        int mx=0;
        REP(i,0,n+1)mx=max(mx,max({dp[i][0],dp[i][1],dp[i][2]}));
        ans+=mx;
    }
    cout<<ans;
}

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