write a C program two swap two numbers without using temporary variable??

• MAIN()
  {
  PRINTF("ENTER TOW NO")
  SCANF("%d%d",&a &b
  a=a+b;
  b=a-b;
  a=a-b;
  getch
  }
  there is key problem so it is not error free but logic is same;
• 10 years agoHelpfull: Yes(11) No(1)
• #include
  int main(void)
  {
  int a,b;
  printf("Enter two number");
  scanf("%d%d",&a,&b);//a=10,b=20
  a ^= b;//using XOR ^
  b ^= a;
  a ^= b;
  printf("a=%d b=%d",a,b);//a=20,b=10
  getch();
  }
• 10 years agoHelpfull: Yes(5) No(0)
• main()
  {
  printf("enter two number");
  SCANF("%d%d",&a &b);
  a=a*b;
  b=a/b;
  a=a/b;
  }
• 10 years agoHelpfull: Yes(2) No(0)
• void main()
  {
  int a=5,b=6,temp;
  a=temp;
  b=a;
  temp=b;
  printf("swaping of two no");
  scanf("%d%d%d",&a,&b,&temp);
  }
  
  
  
• 10 years agoHelpfull: Yes(1) No(4)
• main()
  {
  int a,b;
  printf("enter two numbers:");
  scanf("%d%d",&a,&b);
  a=a^b;
  b=a^b;
  a=a^b;
  printf("%d%d",a,b);
  getch();
  }
  Here a,b values converted to binary number and doing xor operation on two values....i think u can understand it....it is another way without using temporary variable...
• 10 years agoHelpfull: Yes(1) No(0)
• LOGIC....
  a=a+b;
  b=a-b;
  a=a-b;
• 10 years agoHelpfull: Yes(0) No(0)
• #include
  #include
  void main()
  {
  clrscr();
  int a=10,b=20;
  a=a+b;
  b=a-b;
  a=a-b;
  printf("%d %d",a,b);
  getch();
  }
• 10 years agoHelpfull: Yes(0) No(0)
• //Let a=1,b=2
  a=b-a; //a=1
  b=b-a; //b=1
  a=a+b; //a=2
  //a=2,b=1
  
• 10 years agoHelpfull: Yes(0) No(0)
• #include
  
  void main()
  {
  int a=10,b=20;
  a=b-a;
  b=b-a;
  a=a+b;
  printf("%d %d",a,b);
  return 0;
  }
• 10 years agoHelpfull: Yes(0) No(0)
• int main()
  {
  int a,b;
  printf("nenter any 2 numbers");
  scanf("%d%d",&a,&b);
  printf("nbefore swapingn%d,%d"a,b);
  a=a+b;
  b=a-b;
  a=a-b;
  printf("nafter swapingn%d,%d",a,b);
  }
• 10 years agoHelpfull: Yes(0) No(0)
• #include
  #include
  void main()
  {
  int a=10,b=20;
  clrscr();
  a=a+b;
  b=a-b;
  a=a-b;
  printf("%d %d",a,b);
  getch();
  }
• 10 years agoHelpfull: Yes(0) No(0)
• #include
  int main(void)
  {
  int a,b;
  printf("Enter two number");
  scanf("%d%d",&a,&b);
  b=a+b-(a=b);
  printf("a=%d b=%d",a,b);
  getch();
  }
  
• 9 years agoHelpfull: Yes(0) No(0)