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Reverse The Number With Using while Loop In C

Reverse The Number With Using while Loop In C program

 void main(){ 
 int a,sum=0,b;
 printf("Enter a no");
 scanf("%d ",&amp;a);
 while(a!=0) { b=a%10; sum=sum+b; a=a/b; } 
 printf("the sum of the no is %d",sum);
 getch(); }

Output:-enter the number 123
reverse is 321

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