How to customize the set <*> Node ordering rules-CodePudding

Topic link
 # include & lt; Iostream> 
#include  
#include  
#include  
#include #include  
#include  
#include  
#include  
#include  
#include  
#include  
#include  
//# include & lt; Sstream> 
//# include & lt; Regex> 
//# include & lt; Functional> 
using namespace std; 


Struct Node {
The string data. 
SetSet The file; 
Bool operator<(const Node& N) const {
Return the data & lt; N.d ata. 
} 
}; 
Bool CMP (Node * a, Node * b) {
Return a - & gt; The data & lt; B - & gt; data; 
} 

Void insert (the root Node * and string STR) {
If (STR) empty ()) 
return; 
Node * n=the new Node (); 
Int index=STR. Find (' \ \ '); 
cout <"Find_index:" & lt; If (index!=1) {
String s=STR. Substr (0, index); 
N - & gt; Data=https://bbs.csdn.net/topics/s; 
For (auto& It: root - & gt; Link) 
If (it - & gt; Data=https://bbs.csdn.net/topics/=n -> data) {
N=it; 
break; 
} 
Root - & gt; The link. The insert (n); 
STR=STR. Substr (index + 1); 
Insert (n, STR); 
} 
The else {
Root - & gt; File. The insert (STR); 
} 
return; 
} 

Void print (Node root, int n) {
for (int i=0; i cout <""; 
cout For (auto& It: root) link) 
Print (* it, n + 1); 
For (auto& It: root file) {
for (int i=0; i cout <""; 
cout } 
} 

Int main () {
int N; 
String STR. 
The Node root, n. 
Root. Data="https://bbs.csdn.net/topics/root"; 
Cin & gt;> N; 
While (N -) {
Cin & gt;> STR; 
Insert (& amp; Root, STR); 
} 
Print (root, 0); 
return 0; 
}