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Maybe i wasn't clear enough.Sorry for that :/

First the input matter.
Assume that i want to read two user's inputs..First input,then print ,then input again and then print again..So i have to...

Consider this simple example.


int x;
scanf("%d",&x);

I press a number and then i hit enter.So now the buffer of the stdin has the number and the newline character.scanf will read the number...