Answer Posted / supriya

46. fffffff0
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);
}
48.
void strcpy(char *s, char *t)
{
while (*s++ = *t++)
;
}

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