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28 lines
649 B
C
28 lines
649 B
C
/*
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* C program to compute the value of X ^ N given X and N as inputs
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*/
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#include <stdio.h>
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#include <math.h>
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long int power(int x, int n);
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void main()
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{
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long int x, n, xpown;
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printf("Enter the values of X and N \n");
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scanf("%ld %ld", &x, &n);
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xpown = power(x, n);
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printf("X to the power N = %ld\n", xpown);
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}
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/* Recursive function to computer the X to power N */
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long int power(int x, int n)
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{
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if (n == 1)
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return(x);
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else if (n % 2 == 0)
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/* if n is even */
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return (pow(power(x, n/2), 2));
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else
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/* if n is odd */
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return (x * power(x, n - 1));
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} |