A doubt in a correct code

#1

sir, what is the significance of line number 14
in the following code

#2

first we generate the string corresponding to given integer
then we search that string (out) into the every string of searchIn[] array

found=searchIn[p].find(out);
here we find out in searchIn[]

#3

but sir how can we assign any string into an integer

#4

find() function returns the position of the first character of the first match
And position Is integer so it is correct

#5

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