Output printed is always blank

#1

please tell the mistake in my code it displays only empty lines .

#2

if you are using string then alway use push_back() and pop_back() functions

Modified Code

#3

can you please tell me the rea

#4

reason behind it please

#5

in any stl either string or vector
without intialization you can’t use [] operator but can use functions on it

#6

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