Q421
What will be the output for following code? #include #include #include using namespace std; void swap(char *x, char *y) char temp; temp = *x; *x = *y; *y = temp; void func(char *a, int l, int r) int i; if (l == r) cout<<a<<” ,”; else for (i = l; i <= r; i++) swap((a+l), (a+i)); func(a, l+1, r); swap((a+l), (a+i)); int main() char str[] = "AB"; int n = strlen(str); func(str, 0, n-1); return 0;
A.
AB,BA,
AnswerB.
BA,AB,
C.
AB,BA
D.
BA,AB,
Answer: Option A
Solution
Answer: Option A
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