This is a timed quiz.
You have 20 minutes to complete the 4 questions in this quiz.
Which of the following statements are correct about an if-else statements in a C-program? 1: Every if-else statement can be replaced by an equivalent statements using ?: operators 2: Nested if-else statements are allowed. 3: Multiple statements in an if block are allowed. 4: Multiple statements in an else block are allowed.
1 and 2
2 and 3
1, 2 and 4
2, 3, 4
Point out the error, if any in the for loop. #include<stdio.h> int main() { int i=1; for(;;) { printf("%d\n", i++); if(i>10) break; } return 0; }
There should be a condition in the for loop
The two semicolons should be dropped
The for loop should be replaced with while loop.
No error
8 What is x in the following program? #include<stdio.h>
int main() { typedef char (*(*arrfptr[3])())[10]; arrfptr x; return 0; }
x is a pointer
x is an array of three pointer
x is an array of three function pointers
Error in x declaration
How will you free the memory allocated by the following program? #include<stdio.h> #include<stdlib.h> #define MAXROW 3 #define MAXCOL 4
int main() { int **p, i, j; p = (int **) malloc(MAXROW * sizeof(int*)); return 0; }
memfree(int p);
dealloc(p);
malloc(p, 0);
free(p);
