ArmstrongNumber

#include<stdio.h>
#include<math.h>
int power(int base,int exponent){
    int dependant=base;
    if(exponent<1){return 1;}
    for(int i=1;i<exponent;i++){
        dependant*=base;
    }
    return dependant;
}
void main(int argc, char const *argv[]){
    int sum=0,input;
    scanf("%d",&input);
    int NumOfDigits =  ceil(log10(input))==floor(log10(input)) ? ceil(log10(input))+1 : ceil(log10(input));
    for (int i = 0; i < NumOfDigits; i++){
        sum+=power((input/power(10,i)%10),NumOfDigits);
    }
    if(sum==input){printf("is armstrong number");}
    else{printf("it's not");}
}