Exercises in Chapter 9

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9.3 Sequential Container Operations

9.19: input string into list

Write a program to read a sequence of strings from the standard input into a list. Use iterators to write a loop to print theelements in the list. List the changes you needed to make if rewriting the program from 9.18 where strings are to input into a deque.

list<char> s;
list<char>::iterator it=s.end();
char c;
while(c=getchar())
{
    if (c==10) break;
    else it=s.insert(it,c);
}
for(auto i=s.rbegin();i!=s.rend();i++)
    cout<<*i;
cout<<endl;
return 0;

When I first wrote this program, I didn't use reverse_iterator. I fount that +1, -1 and >= can't be used.

for(auto i=s.end()-1;i<=s.begin();i--)//error,program can't be compiled
        cout<<*i;

2019.1.30