What is the value of second after executing the following lines?
first = "tarantula"
second = ""
for i in range(len(first)-1,-1,-1):
second = first[i] + second
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Answer:
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It will prints "tarantula" which is the value of the second variable.
Explanation:
- The first variable holds one string which is reversely scanned by the for loop and assigned to the variable second.
- The value assigned on the second variable is fixed with the previous letter of the second variable value.
- For example, if the "second" variable holds the value 'i' and 'e' will be assigned on it then the value will be made after the assignment is "ei".
- It is because the expression above is "first[i]+second" if the expression is second+first[i], then the second variable holds the reverse of the first variable value.
- The for loop scan the character from last to first because the initial value in the for loop is given as "len-1", the operation is decrement and the last value is -1 for i index.
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