Check out example codes for "cin does not wait for input". It will help you in understanding the concepts better.

Code Example 1

/* cin stops taking input on whitespace encounter
* so if you pass "Prakhar Patel" into cin>>name;
* only "Prakhar" will be stored into name.
* "Patel" will stay in stream and will come into next cin statement.

getline(cin,fullname,'\n'); //use this to capture input stream till \n

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