Which of the following are valid?

int array$[20]$;

$$ printf$("\%$d

$",$ array$[0])$;

$$ printf$("\%$d

$",$ array$[20])$;

$$ printf$("\%$d

$",$ array$[-1])$;

$$ printf$("\%$d

$",$ array$[10])$;

What will be the output of this code?

printf$("\%$c$",$ getchar$())$;

printf$("\%$c$",$ getchar$())$;

user keyboard input is $"$ab$$

$$ unknown

$$ a

$$ ab

$$ ab ab

Which of the following are valid?

int v $=1$;

int $*$p;

p $=$ &v;

$*$p $=*$p $+1$;

$$ p $=*$p $+1$;

$*$p $=$ p $+1$;

$$ v $=*$p $+1$;

Which of the following correctly declares an

array of $5$ strings?

$$ char strings$[5][100]$;

$$ char $*$strings$[5]$;

$$ char $*$strings $=$ malloc$(5)$;

$$ char $**$strings $=$ malloc$(5*$sizeof$($char$))$;

$$ char $**$strings $=$ malloc$(5*$sizeof$($char$*))$;

Which of the following are valid?

int v; char c;

$$ scanf$("\%$d$",$ v$)$;

$$ scanf$("\%$c$",$ &c$)$;

$$ scanf$("\%$c$",$ &v$)$;

$$ scanf$("\%$d$",$ &c$)$;

Which of the following are valid?

int v; char c;

$$ scanf$("\%$d$",$ v$)$;

$$ scanf$("\%$c$",$ &c$)$;

$$ scanf$("\%$c$",$ &v$)$;

$$ scanf$("\%$d$",$ &c$)$;

Consider the following code, what will be

printed?

int array$[]=\{1,0,1\}$;

int sum $=0,$ i$=0$;

for $($;i$<=3$;i$++)\{$

sum $+=$ array$[$i$]$;

$\}$

printf$(\%$d$,$ sum$)$;

$$ unknown because sum was never initialised

$3$

$2$

$$ unknown; index out of array bounds

Consider the following code, what will be

printed?

int array$[]=\{1,0,1\}$;

int sum $=0,$ i$=0$;

for $($;i$<=3$;i$++)\{$

sum $+=$ array$[$i$]$;

$\}$

printf$(\%$d$,$ sum$)$;

$$ unknown because sum was never initialised

$3$

$2$

$$ unknown; index out of array bounds

Which of the following will allow you to open

a file for reading?

FILE $*$f;

$$ f $=$ fopen$($filename$,$w$)$;

$$ f $=$ fopen$($filename$,$a$)$;

$$ f $=$ fopen$($filename$,$r$)$;

$$ f $=$ fopen$($filename$,$rb$)$;

Which of the following will allow you to open

a file for reading?

FILE $*$f;

$$ f $=$ fopen$($filename$,$w$)$;

$$ f $=$ fopen$($filename$,$a$)$;

$$ f $=$ fopen$($filename$,$r$)$;

$$ f $=$ fopen$($filename$,$rb$)$;

How many times does the following code

print $$Hello$?$

int i$=0$;

for $($; i$<10$;$)$

printf$($Hello$)$;

i$++$;

$10$

$9$

$1$

$$ infinity

How many times does the following code

print $$Hello$?$

int i$=0$;

for $($; i$<10$;i$++)$;$\{$

printf$($Hello$)$;

$\}$

$10$

$9$

$1$

$$ infinity

What will i be after the following code?

int i $=5$;

i $=$ i$<<2$;

$1$

$$ false

$0$

$20$

What will i be after the following code?

int i $=5$;

i $=$ i$>>2$;

$1$

$$ false

$0$

$20$

What will i be after the following code?

int i $=5$;

i $=$ i$>>2$;

$1$

$$ false

$0$

$20$

What will b be after the following code?

int a$=5,$ b$=0$;

if $(($a$=$b$)||($a$==0)||($b$=11))\{$

b$++$;

$\}$

$1$

$12$

$6$

$0$

What will b be after the following code?

int a$=5,$ b$=0$;

if $(($a$=$b$)||($a$==0)||($b$=11))\{$

b$++$;

$\}$

$1$

$12$

$6$

$0$