Word count that are integer

Question

1.00/5 (1 vote)

See more:

Given a sample string "hello there are 200 apples and each apple weighs 100 to 300 grams". I have to count number of words which are integers like 200,100,300. How to do it. any code snippets in C, C++ will do .

What I have tried:

I cant figure a logic. I have no idea about how to extract integers from string

Posted 15-Nov-16 19:11pm

Member 12852923

Updated 16-Nov-16 0:08am

Add a Solution

3 solutions

Solution 1

That is really easy done in 2 step.

1. split the string in words (substring) with a string tokenizer. Already handled here.
2. test all substring if the are integers with atoi.

You need only the strtok and atoi functions and write some code. ;-)

Posted 15-Nov-16 20:07pm

KarstenK

Solution 3

Quote:
How to do it. any code snippets in C, C++ will do .

We do not do your HomeWork.
HomeWork is not set to test your skills at begging other people to do your work, it is set to make you think and help your teacher to check your understanding of the courses you have taken and also the problems you have at applying them.
Any failure of you will help your teacher spot your weaknesses and set remedial actions.
So, give it a try, reread your lessons and start working. If you are stuck on a specific problem, show your code and explain this exact problem, we might help.

As programmer, your job is to create algorithms that solve specific problems and you can't rely on someone else to eternally do it for you, so there is a time where you will have to learn how to. And the sooner, the better.
When you just ask for the solution, it is like trying to learn to drive a car by having someone else training.

Quote:
I cant figure a logic. I have no idea about how to extract integers from string

You have to think to how you would do it with a sheet of paper and a pencil.

Posted 16-Nov-16 0:08am

Patrice T

Updated 16-Nov-16 15:35pm

v2

Comments

Member 12852923 16-Nov-16 10:35am

Its not a home work. If you want to help please help but dont say stupid things

Patrice T 16-Nov-16 15:32pm

This is HomeWork.
This kind of problem is a problem only for very beginners and the only purpose of these problems is to make you think and try to devise an algorithm that solve that problem.

[no name] 16-Nov-16 21:46pm

Help isn't always someone doing your job for you. The only thing you learned here today is that if you ask someone to do your homework for you, someone will do it. Maybe you should try it yourself first before begging someone to do it for you. Than you might learn something.

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

CPallini · Accepted Answer · 2016-11-15T23:48:00

Solution 2

Try, for instance:

C++

 #include <iostream>
 #include <string>
 #include <sstream>
 #include <cstdlib>
 using namespace std;

int main()
{
  string line = "hello there are 200 apples and each apple weighs 100 to 300 grams";

  istringstream iss(line);

  while ( iss.good() )
  {
    char *pe;
    string s;
    iss >> s;
    long l = strtol(s.c_str(), &pe, 10);
    if ( *pe == '\0')
      cout << l << endl;
  }

}

C++

Posted 15-Nov-16 23:48pm

CPallini

v2

Comments

Member 12852923 16-Nov-16 10:37am

Thank You it works. What is good() ?

CPallini 16-Nov-16 13:10pm

"What good's a computerized nose" :-)

See
http://www.cplusplus.com/reference/ios/ios/good/