Question

C++

Question 1 (18 points) What will be the outcome of the C++ expressions A, B, C, and D? Esplain your answer

Answer 1

"c) { int n = 5 count < < n < < "", "" < < my function (n): return 0: } n value 5 will be printed, and my function(n) will be called in function called in function call, n = 5 is passed 5, 15 will be printed result = 0 while (n > 0) Rightarrow 5 > 0 result = 0 + 5 = 5 n --: Rightarrow 5 - 1 = 4 loop n > 0, 4 > 0 result = 5 + 4 = 9 n --: Rightarrow 4 - 1 = 3 loop n > 0, 3 > 0 result = 9 + 3 = 12 n--: Rightarrow 3 - 1 = 2 loop n > 0: 2 > 0 result = 12 + 2 = 14 n --: Rightarrow 2 - 1 = 1 loop n > 0: 1 > 0 result = 14 + 1 = 15 n--: Rightarrow 1 - 1 = 0 loop 0 > 0 false \r\n # include < iostream.h > using namespace std: int my_ function(int&n): int main() { int n = 5: cout < < n < < "", "" < < my_function(n): return 0: } int my_function(int & n) { int result = 0: while (n > 0) { result + = n: n --: } return result: } D) int x, n = 10;"

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