armstrong number in c
#include <stdio.h> #include <stdlib.h> #include <math.h> int cube(int a) { int c; c = a*a*a; return c; } int armnum(int *a) { int x = *a, n = 0, rem, r = 0; while (x != 0) { x /= 10; n++; } x = *a; while (x != 0) { rem = x % 10; r += cube(rem); x /= 10; } if(r == *a){ return 1; } } int main() { int a, y; scanf("%d", &a); y = armnum(&a); if(y == 1){ printf("It is an Armstrong number."); } else{ printf("It is not an Armstrong number."); } }
