Answer / jeevanvns

#include<stdio.h>
#include<conio.h>
void main()
{
int a,b;
clrscr();
printf("enter the valu");
scanf("%d%d",&a,&b);
a=a+b;
b=a-b;
a=a-b;
printf("%d\t %d\t",a,b);
getch();
}

Answer / tejesh

#include<stdio.h>
#include<conio.h>
void main()
{
int a,b;
clrscr();
printf("enter the value");
scanf("%d%d",&a,&b);
a=a^b; //xor operator -- ^
b=a^b;
a=a^b;
printf("%d\t %d\t",a,b);
getch();
}

PROG. TO PRODUCE 1 1 1 1 2 1 1 3 3 1 1 4 6 4 1

1 Answers  

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main() { void swap(); int x=10,y=8; swap(&x,&y); printf("x=%d y=%d",x,y); } void swap(int *a, int *b) { *a ^= *b, *b ^= *a, *a ^= *b; }

2 Answers  

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{ int *ptr=(int*)malloc(sizeof(int)); *ptr=4; printf("%d",(*ptr)+++*ptr++); }

4 Answers  

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There are 21 people in a room. They have to form groups of 3 people each. How many combinations are possible? Write a C program to print the same.

1 Answers   TCS,

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write a program in c to merge two array

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how to print 1 2 3 4 5 6 7 8 9 10 9 8 7 6 5 4 3 2 1 using any loop(for or while) only once(only 1 loop) and maximum 2 variables using C.

19 Answers   Cap Gemini, Infosys,

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#define assert(cond) if(!(cond)) \ (fprintf(stderr, "assertion failed: %s, file %s, line %d \n",#cond,\ __FILE__,__LINE__), abort()) void main() { int i = 10; if(i==0) assert(i < 100); else printf("This statement becomes else for if in assert macro"); }

1 Answers  

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#define clrscr() 100 main() { clrscr(); printf("%d\n",clrscr()); }

2 Answers  

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write a origram swaoing valu without 3rd variable

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main() { int i=0; while(+(+i--)!=0) i-=i++; printf("%d",i); }

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struct point { int x; int y; }; struct point origin,*pp; main() { pp=&origin; printf("origin is(%d%d)\n",(*pp).x,(*pp).y); printf("origin is (%d%d)\n",pp->x,pp->y); }

1 Answers  

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