Answers for "str[i] - '0'"

C++

0

str[i] - '0'

The part str[i] - '0' takes the ASCII character of the corresponding digit 
which are sequentially "0123456789" and subtracts the code for '0' from the 
current character. This leaves a number in the range 0..9 as to which digit is 
in that place in the string.

Posted by: Guest on November-02-2020

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