Question

C++

Write a program that reads from the external file input.txt, counts the letters in every word, replaces the word by that number, and then writes the numbers to an external file output.txt (Note: Do not forget to copy the blanks. You may wish to use infile.get and outfile.put in your program.) Also you may wish to use the strlen( ) function.

Output: After the program generates output.txt, the code should display the contents of the file on the screen to verification.

Answer 1

#include <iostream>
#include <stdlib.h>
#include <string.h>
#include <fstream>

using namespace std;

int main() {
  
   ifstream infile;
ofstream outfile;

// open input file
infile.open("input.txt");
if(!infile){
cout<<"File not found"<<endl;
exit(-1);
}

// open output file
outfile.open("output.txt", ios_base::out);

if(!outfile){
cout<<"output File not found"<<endl;
exit(-1);
}

string word;

// read each word from input file in a string and put in output file the length of the word
while(infile>>word){
outfile<<word.length()<<" ";
}

infile.close(); // close input file
outfile.close(); // close output file

infile.open("output.txt"); // open ouptut file for printing

int n;
while(infile>>n){
cout<<n<<" ";
}
   return 0;
}

INPUT.txt

fhh
ffwef
fwfbwbf
fbafbebfebf
hefbebvfe
hefbebvfebfefbehbfbehfe
bfbefbeh fbafbebfebfffefee efefbehsbfe

OUTPUT.txt

3 5 7 11 9 23 8 17 11