南阳171----聪明的kk

 //简单的dp
 #include<cstdio>
 #define Max(a,b) ((a)>(b)?(a):(b))
 int d[];
 int main()
 {
     int i,j,n,m,x,t,te;
     scanf("%d%d",&n,&m);
     for(i=; i<=n; ++i)
     {
         for(j=; j<=m; ++j)
         {
             scanf("%d",&x);
             d[j] = x + Max(d[j],d[j-]);
         }
     }
     printf("%d\n",d[m]);
     return ;
 }