Selim_Senpai's blog

Time limit exceeded
By Selim_Senpai, history, 4 years ago, In English

hello, my friends, I'm solving a DP problem on Cses and I got a time limit exceeded but I saw a solution for the problem using bottom-up technique but I got a time limit on top-down technique although we use the same approach

can someone explain why I get TLE ?

my code https://ideone.com/inIGo6

bottom-up solution https://ideone.com/Pp0EA5

Problem link https://cses.fi/problemset/task/1636

  • Vote: I like it
  • 0
  • Vote: I do not like it

Comments Comments (4)
| Write comment?
»
4 years ago, # |
← Rev. 2   Vote: I like it +1 Vote: I do not like it

Mostly, the time limit in the CSES set for DP is made just to accept iterative approach, as the recursive method is costly as compared to iterative, given the same constraints (See). Try making lesser operation in the recursive function or go for the iterative.

→ Reply
»
4 years ago, # |
  Vote: I like it +1 Vote: I do not like it

Please specify the problem you want to solve and the link to the problem.

→ Reply
»
4 years ago, # |
  Vote: I like it 0 Vote: I do not like it

It´s not your problem but it´s faster to use "const int mod" than "int mod"

→ Reply
  • »
    »
    14 months ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    You are right, I had the same problem but when I turned the variables to const int&, the runtime reduced to its half. So ridiculous

    → Reply