8진수 10진수 변환

#include <stdio.h>
#include <math.h>

long long convertOctalToDecimal(int octalNumber);
int main(void){
int octalNumber;

printf("Enter an octal number: ");
scanf("%d", &octalNumber);

printf("%d in octal = %lld in decimal\n", octalNumber, convertOctalToDecimal(octalNumber));
return 0;
}

long long convertOctalToDecimal(int octalNumber){
int decimalNumber = 0, i = 0;

while(octalNumber != 0){
decimalNumber += (octalNumber%10) * pow(8,i);
++i;
octalNumber /= 10;
}

i = 1;

return decimalNumber;
}

8 진수를 입력: 116

10 진수 = 78