Tips for formatting code indentation

In recent days, I have often been in the Q&A section to answer questions, and found a little problem.
The code that some friends put up when they ask questions is not indented; or the programming format is not very beautiful, and they are often fascinated by it.
The brother who asked the question quickly put a piece of code because he was in a hurry.
I am here to help him answer questions, looking at the code, I am quite anxious.Today, I accidentally discovered a piece of unindented code, just to share a wave of questions.
  I simply take a small program in C language that I have helped deal with in the past two days as an example.I changed it to unindented format.

BTree createTree(char s[]) {BTNode *p;BTNode *rt;BTNode *lchild, *rchild, parent;stack S;p = (BTNode * )malloc(sizeof(BTNode));p->lchild = NULL;p->rchild = NULL;p->data = s[0];S.push§;rt = p;for(int i = 1; s[i] != '\0';i++){if('A' <= s[i] && s[i] <= 'Z') {p = (Node ) malloc(sizeof(Node));p->data = s[i];p->lchild = NULL;p->rchild = NULL;S.pop();S.push§;}if(s[i] == '(') {S.push(NULL);}if(s[i] == ',') {S.push(NULL);}if(s[i] == ')') {rchild = S.top();S.pop();lchild =S.top();S.pop();parent = S.top();S.pop();parent->lchild = lchild;parent->rchild = rchild;S.push(parent);}}returnrt;}

This code doesn't really want to be bothered by looking at it, but let's think about it.The best way is to copy this code and paste it into Visual Studio.
But for all the code without blank lines, VS can't handle it.It needs to be processed with Sublime Text first.

Sublime Text Ctrl + H to bring up the replacement interface.Search for semicolons and replace all semicolons with a semicolon plus a newline (the newline can be typed out with Ctrl+Enter).

Next, copy the code in SublimeText into VisualStudio, and VisualStudio will help with indentation and parentheses.

You're done!
How do you deal with this situation?Welcome to discuss~