is there any difference between
a[i][j]+=MAX(a[i][j-1],a[i-1][j]);
and a[i][j]=a[i][j]+MAX(a[i][j-1],a[i-1][j]);
in the problem ‘magic rankings’ if i use the latter one, my solution doesnt work.
my solution to the problem is in the following link
http://www.codechef.com/viewsolution/1675348
a=a+b and a+=b should not be any different. i have no idea why it is different in this case. Please tell me why… thanks in advance
Maybe there is problem in your MAX macro.
This is just a tip, I was told that good practice is to use brackets, try this:
#define MAX(x,y) (x>y?x:y)i would definitely recommend #define max(x,y) ((x)>(y)?(x):(y)) to prevent operator precedence problems.
see Operator Precedence Problems for an example.
Thanks that worked…
incredibly foolish of me not to have done that.
You don’t need to award me karma points, you can accept and/or vote for the answer 