49.#include<stdio.h> main() { int a,b; scanf("

44.what is the difference between strcpy() and memcpy()
function?
45.what is output of the following statetment?
46.Printf(“%x”, -1<<4); ?
47.will the program compile?
int i;
scanf(“%d”,i);
printf(“%d”,i);
48.write a string copy function routine?
49.swap two integer variables without using a third
temporary variable?
50.how do you redirect stdout value from a program to a file?
51.write a program that finds the factorial of a number
using recursion?

Question Posted / vidya v

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Answer Posted / vidya v

49.#include<stdio.h>
main()
{
int a,b;
scanf("%d%d",&a,&b);
a=a+b;
b=a-b;
a=a-b;
printf("%d%d",a,b);
}

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