Q:

C program to reverse a number

hamza
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2022-05-18
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C program to reverse a number

 

C program to reverse a number and to print it on the screen. For example, if the input is 123, the output will be 321. In the program, we use the modulus operator (%) to obtain digits of the number. To invert the number write its digits from right to left.

C programming,
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hamza
2022-05-18
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#include <stdio.h>
int main()
{
  int n, r = 0;

  printf("Enter a number to reverse\n");
  scanf("%d", &n);

  while (n != 0)
  {
    r = r * 10;
    r = r + n%10;
    n = n/10;
  }

  printf("Reverse of the number = %d\n", r);

  return 0;
}

output:

Enter a number to reverse

12345

Reverse of the number = 54321

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