exploring <set> in C++

set_test.cpp

#include<iostream>
#include<set>
using namespace std;

int main(){
  
  
  //basic 101
  /*
    set<int> numSet={1,2,3,4,5,454,999,91};
    for(auto it=numSet.begin();it!=numSet.end();it++){
        cout<<*it<<endl;
    }
  */  
  
  
  // basics 102
  /*
  set<string> nameSet;
    //input
    for(int i=0;i<5;i++){
        string name;
        cout<<"Name: ";
        getline(cin,name);
        nameSet.insert(name);
    }
    //prints
    for(auto it=nameSet.begin();it!=nameSet.end();it++){
        cout<<*it<<endl;
    }
    */
    
    
    //basic 103
    /*
     set<string>preSet={"C++","Java","PHP"};
    set<string> nameSet(preSet.begin(),preSet.end());
    string num;
    for(int i=0;i<5;i++){
        cout<<"Name["<<i<<"] : ";
        cin>>num;
        nameSet.insert(num);
    }

    //print
    for(auto it=nameSet.begin();it!=nameSet.end();it++){
        cout<<*it<<endl;
    }
    */
    
    
    
    //basic 104 
    //reverse iteration
    
    //using reverse iterator on set
    set<int>numSet;
    for(int i=0;i<100;i++){
        numSet.insert(i+1);
    }
    for(auto it=numSet.rbegin();it!=numSet.rend();it++){
        cout<<*it<<" ";
    }
    
    
    
    
  
  
}