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C
riddles and Questions on Scanf Function
Scanf Function and Questions
The syntax of scanf function is
int scanf(const char*string ,...)
This function returns the number of data items successfully assigned
value.
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Learn about ceil(),floor(),random(),randomize()
functions.
ceil(1.2)=2 but floor(1.2)=1.
ceil(-1.2=-1 but floor(-1.2)=-2;
round(3.5)=4. round(3.2)=3.
II.Conditional statements:
In c any non zero value is equal to true and so the following printf
function will be executed.
1.if(-1)
{
printf("britney");
}
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2.int i=1;
switch(i)
{
default://default can come in any order
break must be present otherwise all the statements below it will
be excuted regardless of condtion.
case 4.5://not allowed only integer
values.error
case i+1://not allowed only constant
expression(like (8*4)).error.
}
3.int i=1;
switch(i)
{
printf("night");
case 1:
printf("star"); //watch no break.
case 4:
printf("moon");
}
work it out.
4.for(printf("111");printf("222");printf("333")); //work
it out
for(printf("111");0;printf("222"));
"111222" will be the output.The loop will not get executed.
5.Difference between include "stdio.h" and include<stdion.h>
using <> will cause the files to be searched in the current path,
whereas "" causes the file to be searched in the current
directory addition to it.
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