Unidentified error in code

#1

i’m unable to find error in the code for pair sum problem
here is the code:

#2

hello @vketan182
image

use n-1 in place of size of .
because sizeof will always give u 1000 (because ur array size is 1000)

#3

still not showing any output

#4

initialise i=0 … … …

#5

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