Question

1. Suppose the file mystery.txt contains the text below: The whole thing starts about twelve, fourteen or seventeen. #include <iostream> #include <fstream> #include <string> using namespace std; int main() { string word; int i 0; ifstream read("mystery.txt"); while(!read.eof()) { read>>word; if(i < word. length()) cout<<word[i]; i++; } cout<< endl; } seventeen teen

Answer 1

The output is : Thirteen

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Explanation:

Mystery.txt contains

The whole thing starts about twelve, fourteen or seventeen.

The above code prints i^th character of the ith word, if i is less than word length

>>>> i = 0, word0 = The

i < wordlength, It will print 0th index character of  The which is : T

>>>> i = 1, word1 = whole

i < wordlength, It will print 1st index character of  whole which is : h

>>>> i = 2, word2 = thing

i < wordlength, It will print 2nd index character of  thing which is : i

>>>> i = 3, word3 = starts

i < wordlength, It will print 3rd index character of  starts  which is : r

>>>> i = 4, word4 = about

i < wordlength, It will print 4th index character of  about  which is : t

>>>> i = 5, word5 = twelve,

i < wordlength, It will print 5th index character of  twelve, which is : e

>>>> i = 6, word6 = fourteen

i < wordlength, It will print 6th index character of  fourteen which is : e

>>>> i = 7, word7 = or

i > wordlength, Since, i is greater than wordlength, skip printing

>>>> i = 8, word8 = seventeen.

i < wordlength, It will print 8th index character of  seventeen. which is : n

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Therefore, the output will be: Thirteen

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