Standard Template Library – Lists (C++)
/* Google standard template library to use list container and using C++ implement following member functions of list class: empty, insert,merge,reverse,sort */ #include<iostream> #include<list> using namespace std; int main() { list<int> list1,list2; list<int>::iterator p; char ch; int a; do { cout<<"\n***************MENU****************\n"; cout<<"\n1.Create a list\n"; cout<<"\n2.Display a list\n"; cout<<"\n3.Insert an element\n"; cout<<"\n4.Check if list is empty\n"; cout<<"\n5.Reverse the list\n"; cout<<"\n6.Sort the list\n"; cout<<"\n7.Merge two lists\n"; cout<<"\n************************************\n"; cout<<"\n Enter your choice(1-7):\n"; cin>>a; switch(a) { case 1: int n,a; cout<<"\n Enter the number of elements you wish to enter:\n"; cin>>n; cout<<"\nEnter your elements:\n"; for(int i=0;i<n;i++) { cin>>a; list1.push_back(a); } cout<<"\n List created!\n"; break; case 2: for(p=list1.begin();p!=list1.end();++p) { cout<<*p<<" "; } break; case 3: int b; cout<<"Enter the new element:"; cin>>b; list1.push_back(b); cout<"\n Generating new list......\n"; cout<<"\n Displaying new list.......\n"; for(p=list1.begin();p!=list1.end();++p) { cout<<*p<<" "; } break; case 4: if(list1.empty()) { cout<<"\n The list is empty."; } else { cout<<"\n The list is not empty."; } break; case 5: list1.reverse(); for(p=list1.begin();p!=list1.end();++p) { cout<<*p<<" "; } break; case 6: list1.sort(); for(p=list1.begin();p!=list1.end();++p) { cout<<*p<<" "; } break; case 7: int ele; cout<<"\n Enter the number of elements you wish to enter:\n"; cin>>n; cout<<"\nEnter your elements:\n"; for(int i=0;i<n;i++) { cin>>ele; list2.push_back(ele); } list1.merge(list2); for(p=list1.begin();p!=list1.end();++p) { cout<<*p<<" "; } break; } cout<<"\n Do you want to continue?(y/n):\n"; cin>>ch; }while(ch=='y'); }