Write a program that reads the C source code from the standard input and verifies that all curly braces are correctly paired to appear

Source: Internet
Author: User

(Three if cases are considered complete, attention to problem-solving ideas)

#include <stdio.h>
int main ()
{
int count=0;

Char ch;

while ((Ch=getchar ())!=eof) //Until the end of file flag appears, no longer enters the loop

{
if (ch== ' {')
{
count++;
}
if (ch== '} ' &&count==0)//Before ' {', and then '} ', which does not match
{
printf ("does not match \ n");
return 0;
}
if (ch== '} ' &&count!=0)//before having ' {', after '} '
{
count--;
}
}
if (count==0)//i.e. the number of the preceding ' {' and '} ' is offset, matching the
{
printf ("Match \ n");
}
Else
{
printf ("Mismatch");
}
return 0;
}


This article from "Sentiment" blog, reproduced please contact the author!

Write a program that reads the C source code from the standard input and verifies that all curly braces are correctly paired to appear

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.