C++ New And Delete Question:

In C++ if program executed successfully, following value will be returned to the calling process, if nothing specified in return statement?

a) 0
b) 1
c) -1
d) 2

a) 0

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In C++ if return statements is written in a non-void function without any specified value, what will be return value of the function? a) undefined b) 1 c) 0 d) -1	Individual characters in a string are accessed as following: a) cout << S.at(i); b) cout << S[i]; c) both a) and b) d) None