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SWAPPING OF VALUES C CODE


Q1:Write a C program to "interchange" values without using third                     variable?


 #include<conio.h>                     
 #include<stdio.h>                      
 void main()                                
 {                                                 
 clrscr();                                      
 //interchange number                
 int a=4;                                      
 int b=5;                                      
 clrscr();                                      
 printf("\na=%d",a);                     
 printf("\nb=%d",b);                     
 b=a+b;                                       
 a=b-a;                                        
 b=b-a;                                        
 printf("\nAfter interchanging ");  
 printf("\na=%d",a);                     
 printf("\nb=%d ",b);                    
 getch();                                      
 }                                                 

***********************************************************************************


Sample Output:








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