Compilation error in my submission. Please explain the error and how to fix it

#1

https://practice.geeksforgeeks.org/problems/subset-sum-problem2014/1

#2

hello @

put loop (the one which u r using to initialise dp array ) inside the function.

equal parition function

#3

The declaration of array dp[row][col] is being flagged as invalid too. why?

#4

u r using row and col for dp size ,which is unknow before hand.

either give a fixed size . or declare dp array inside function after computng row and column ,
and then pass dp array to other function wheneve u need

#5

I guess, the size isn’t unknown. See row and column being equal to N+1 and sum+1 respectively if the sum of elements is even. or 0 otherwise

#6

I tried to give a fix size, but what would be a good size for the column part?
Given,
1<=N<=100
1 ≤ arr[i] ≤ 1000. So the sum can be 100000 at max, should i take dp[100][100000] ??

#7

…

row and col is decided at the time of creating of object at the time of creating class u dont have it.
so if u want to delcare it as membe variable then u have to give fix size.

otherwise declare in functin.

ye this should work fine

#8

Please see the updated code, it’s showing segmentation fault

#9

pls share the updated code

#10
#11

becuase of too much memory allocation it is giving segfault.

use given row and colum to intialise dp array

or guess the sizw

#12

Can you please share the code of your solution to the problem?

#13

have already shared ur corrected code in my last response.

also u can check others solution from submissions section

#14

Thanks :slight_smile:

#15

Btw, why did we do this? Can’t a class have any other statements except for functions and variables?

#16

u can use dynamic array inside ur class if u want.

for statci array fixed size is necessary

#17

i’m talking about putting the loop inside the function

#18

…

you can…
for my convenience i replaced it , u can use loop

#19

thank you :slight_smile:

#20

…

were u asking about loop inside class ? u can use loop only inside any function of class.
not anywhere else