What is my name? (just seeing if you are awake or not)

If we want to print on the console,

we use

cin << "Welcome to NU ICPC ";

If I want to execute a block of statements n number of times, which looping

method will be the most suitable?

what will be the output

what is this formula for?

if I have an integer variable that can hold up to 1e9, which data type is most suitable

If I have an integer variable that can hold up to 1e10, what is the most suitable d

data type

(a+b)%m is equivalent to