Which of the following statements are correct about an array? 1. The array int num[26]; can store 26 elements 2. The expression num[1] designates the very first element in the array 3. It is necessary to initialize the array at the time of declaration. 4. The declaration num[SIZE] is allowed if SIZE is a macro.

What is output? #include #include void swap(char *, char *); int main() { char *pstr[2] = {"LAPTRINHC++", ".NET"}; swap(pstr[0], pstr[1]); printf("%s%s", pstr[0], pstr[1]); getch(); } void swap(char *t1, char *t2) { char *t; t=t1; t1=t2; t2=t; }

The library function used to find the last occurrence of a character in a string is

What is output of code? void main() { int x = 5; const int* p; p = &x; x++; *p = 4; printf("%d", *p); getch(); }

What is output of code? #include int main() { int a = 320; char *ptr; ptr = (char*)&a; printf("%d ", *ptr); return 0; }

What will be output of following program? #include #include #include int main() { char *ptr1 = NULL; char *ptr2 = 0; printf("\n%d", ptr2); strcpy(ptr1, "c"); strcpy(ptr2, "questions"); printf("\n%s %s", ptr1, ptr2); getch(); }

What will be output of following program? #include #include int main() { int i = 5, j; int *p , *q; p = &i; q = &j; j = 5; printf("%d %d", *p, *q); getch(); }

What will be output of following program? #include #include void main() { int i = 5; int *p; p = &i; printf(" %u %u", *&p , &*p); getch(); }