36 lines
706 B
C
36 lines
706 B
C
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/*
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* C program to find the reverse of a number using recursion
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*/
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#include <stdio.h>
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#include <math.h>
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int rev(int, int);
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int main()
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{
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int num, result;
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int length = 0, temp;
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printf("Enter an integer number to reverse: ");
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scanf("%d", &num);
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temp = num;
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while (temp != 0)
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{
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length++;
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temp = temp / 10;
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}
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result = rev(num, length);
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printf("The reverse of %d is %d.\n", num, result);
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return 0;
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}
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int rev(int num, int len)
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{
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if (len == 1)
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{
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return num;
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}
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else
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{
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return (((num % 10) * pow(10, len - 1)) + rev(num / 10, --len));
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}
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}
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