in x=x++;
the above expression is postfix
first we assign 10 into x then increment it by one so value
of x become 11
ic case of
y=++y;
is prefix expression firstly we increment value of y
then assign it to y.
so y become
y=16
the answer is 10 and 16..
in the case of postfix,the value will be displayed first
[that is the difference between postfix and prefix]..
when the main function is again called and the value is
displayed it will b'com..11 and 17..
the ans is 11 and 16..
y = ++y;
wont make any differance as a statement.
we will have to think about it only if we are using it in
loops.. or conditional statements etc.. :-)
so dont get confused.
dont forget ur basics..
C is a procedural language.
hence
x = x++;
will be completely executed first
the value of x = 11.
and then
y = ++y;
will be executed and value will be changed to 16
the answer is 10,16.
because x=x++;
means first assign after that that is incremented.
in case of y=++y;
first increment operation is performed. after that assigned.
I use turbo C which allocates 2 bytes for integers and 4
bytes for long. I tried to declare array of size 500000 of
long type using the following code...
long *arr;
arr=(long *)(malloc)(500000 * sizeof(long));
It gives a warning that "Conversion may lose significant
digits in function main"...
And the resulting array size was very less around 8400 as
compared to 500000. Any suggestions will be welcomed....
#define MAX(x,y) (x) > (y) ? (x) : (y)
main()
{
int i = 10, j = 5, k = 0;
k = MAX(i++, ++j);
printf("%d %d %d", i,j,k);
}
what will the values of i , j and k?
}
Write a program that accepts a string where multiple spaces
are given in between the words. Print the string ignoring
the multiple spaces.
Example:
Input: “ We.....Are....Student “ Note: one .=1 Space
Output: "We Are Student"
logic for generating all the combinations of the any number
of given letters.
ex:::::::::
if a,b,c,d are given the o/p should be
abcd,dcba,dbac,bcad,................
4*3*2*1 combinations............
Would you rather wait for the results of a quicksort, a
linear search, or a bubble sort on a 200000 element array?
1) Quicksort
2) Linear Search
3) Bubble Sort
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?
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