Ans 12,
as addition will takes place from left to right
step1: i++ = 5;
step2: value of i will be updated before taking value of
another operand and hence i = 6;
step3: ++i = 7 as first increment will happen and then value
will be used.
final result: 5 + 7 = 12;
when ever a cout or a printf statement is used..the instruction is processed from right to left..
had this been the qn
int i=5;
printf("%d%d",i++ + ++i,i);
ans would be 125.
as i said earlier the processing takes from right to left..
so first ++i=6,
then i++=6;
therfore 6+6=12..
this program output is 12.
first is i++ is 5 only because this the post increment
first using the value after increment.
whenever i++ + the value of is 6.
++ i means this is the pre-increment.first increment
the value after using the variable this step i will become
7.
total is i++ =5
i++ + =6
++ i=7
i++ + ++i= 12. this is posted by Ramesh(MCA)Nizam
college.HYDERABAD
I HAVE PRACTICED MANY ASPECTS OF THESE QUESTIONS
THING IS THAT
PRINTING VALUES IS FROM RIGHT TO LEFT.
SOLVING AN EXPRESSION IS FROM LEFT TO RIGHT.
SOME SAMPLE OUTPUTS:-(TRY IT)
int i=5;
printf("%d",i++ + ++i); 12(5+7 only)(not 6+6)
int i=5;
printf("%d",i++ * ++i); 35(5*7 only)(not 6*6)
int i=5;
printf("%d %d",i++ + ++i,i); 12 5
int i=5;
printf("%d",i++ + i++); 11 7
printf(" %d",i);
we have to use realloc only after malloc or calloc ? or we
can use initially with out depending on whether we are
using malloc or calloc in our program ?
What will be printed as the result of the operation below:
#include<..>
int x;
int modifyvalue()
{
return(x+=10);
}
int changevalue(int x)
{
return(x+=1);
}
void main()
{
int x=10;
x++;
changevalue(x);
x++;
modifyvalue();
printf("First output:%d\n",x);
x++;
changevalue(x);
printf("Second output:%d\n",x);
modifyvalue();
printf("Third output:%d\n",x);
}
9.how do you write a function that takes a variable number
of arguments? What is the prototype of printf () function?
10.How do you access command-line arguments?
11.what does ‘#include<stdio.h>’ mean?
12.what is the difference between #include<> and #include”…”?
13.what are # pragma staments?
14.what is the most appropriate way to write a
multi-statement macro?
1. Write the function int countchtr(char string[ ], int ch);
which returns the number of times the character ch appears
in the string.
Example, the call countchtr(“She lives in NEWYORK”, ‘e’)
would return 3.
What is the function of ceil(X) defined in math.h do?
A)It returns the value rounded down to the next lower
integer
B)it returns the value rounded up to the next higher integer
C)the Next Higher Value
D)the next lower value
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