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#include <bits/stdc++.h>
 
using namespace std;
 
 
#define endl "\n"
#define rr(a,b,n) b a[n+1]
#define sx(a,b,c) sort(a+b,a+c+1)
#define forj(a,b) for(ll j=a;j<=b;j++)
#define fori(a,b) for(ll i=a;i<=b;i+=1)
#define lvt ios_base::sync_with_stdio(0)
#define setup lvt;freopen("FM.inp","r",stdin);freopen("FM.out","w",stdout)
 
 
typedef string str;typedef long l;
typedef unsigned long long ull;
typedef unsigned long ul;
typedef int ll;
int a[505][505];int f[505][505];
const ll inf=1e9;ll m,n;
int main()
    {
        ios_base::sync_with_stdio(false);
        fori(0,504)
        forj(0,504)
            f[i][j]=-inf;
        cin >>m >> n;
        fori(3,m+2)
        forj(3,n+2)
            cin >> a[i][j];
        f[3][3]=a[3][3];
        fori(4,m+2)
        forj(3,n+2){
            f[i][j]=max(f[i-2][j+1],
                    max(f[i-2][j-1],
                    max(f[i-1][j-2],
                        f[i-1][j+2]
                        ))) + a[i][j];
        }
        int res=-inf;
        fori(3,n+2)
            res=max(res,f[m+2][i]);
        cout <<res;
    }

Main.java:1: error: illegal character: '#'
#include <bits/stdc++.h>
^
Main.java:1: error: class, interface, or enum expected
#include <bits/stdc++.h>
         ^
Main.java:6: error: illegal character: '#'
#define endl "\n"
^
Main.java:6: error: class, interface, or enum expected
#define endl "\n"
        ^
Main.java:7: error: illegal character: '#'
#define rr(a,b,n) b a[n+1]
^
Main.java:8: error: illegal character: '#'
#define sx(a,b,c) sort(a+b,a+c+1)
^
Main.java:9: error: illegal character: '#'
#define forj(a,b) for(ll j=a;j<=b;j++)
^
Main.java:9: error: class, interface, or enum expected
#define forj(a,b) for(ll j=a;j<=b;j++)
                             ^
Main.java:9: error: class, interface, or enum expected
#define forj(a,b) for(ll j=a;j<=b;j++)
                                  ^
Main.java:10: error: illegal character: '#'
#define fori(a,b) for(ll i=a;i<=b;i+=1)
^
Main.java:10: error: class, interface, or enum expected
#define fori(a,b) for(ll i=a;i<=b;i+=1)
                             ^
Main.java:10: error: class, interface, or enum expected
#define fori(a,b) for(ll i=a;i<=b;i+=1)
                                  ^
Main.java:11: error: illegal character: '#'
#define lvt ios_base::sync_with_stdio(0)
^
Main.java:12: error: illegal character: '#'
#define setup lvt;freopen("FM.inp","r",stdin);freopen("FM.out","w",stdout)
^
Main.java:12: error: class, interface, or enum expected
#define setup lvt;freopen("FM.inp","r",stdin);freopen("FM.out","w",stdout)
                  ^
Main.java:12: error: class, interface, or enum expected
#define setup lvt;freopen("FM.inp","r",stdin);freopen("FM.out","w",stdout)
                                              ^
Main.java:15: error: class, interface, or enum expected
typedef string str;typedef long l;
                   ^
Main.java:16: error: class, interface, or enum expected
typedef unsigned long long ull;
^
Main.java:17: error: class, interface, or enum expected
typedef unsigned long ul;
^
Main.java:18: error: class, interface, or enum expected
typedef int ll;
^
Main.java:19: error: class, interface, or enum expected
int a[505][505];int f[505][505];
^
Main.java:19: error: class, interface, or enum expected
int a[505][505];int f[505][505];
                ^
Main.java:20: error: class, interface, or enum expected
const ll inf=1e9;ll m,n;
^
Main.java:20: error: class, interface, or enum expected
const ll inf=1e9;ll m,n;
                 ^
Main.java:21: error: class, interface, or enum expected
int main()
^
Main.java:24: error: class, interface, or enum expected
        fori(0,504)
        ^
Main.java:27: error: class, interface, or enum expected
        cin >>m >> n;
        ^
Main.java:28: error: class, interface, or enum expected
        fori(3,m+2)
        ^
Main.java:31: error: class, interface, or enum expected
        f[3][3]=a[3][3];
        ^
Main.java:32: error: class, interface, or enum expected
        fori(4,m+2)
        ^
Main.java:39: error: class, interface, or enum expected
        }
        ^
Main.java:41: error: class, interface, or enum expected
        fori(3,n+2)
        ^
Main.java:43: error: class, interface, or enum expected
        cout <<res;
        ^
Main.java:44: error: class, interface, or enum expected
    }
    ^
34 errors

Standard output is empty