Help with error

#1

problem: smart keypad;
code: https://ide.codingblocks.com/s/461327

How do I store all the possible combinations in a vector?

the code is working correctly if I don’t store and just print

#2

hello @raghav007
ur out is empty string ,u cant use indexing over it.

use push vack to push character at its back

#3

it is not able to correctly handle inputs with 0 and 1

#4

remove the if statement and let ur for loop handel it

#5

thanks it is working now

#6

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