C언어 swea 2058 자릿수 더하기

https://swexpertacademy.com/main/code/problem/problemDetail.do?contestProbId=AV5QPRjqA10DFAUq&categoryId=AV5QPRjqA10DFAUq&categoryType=CODE

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#include <stdio.h>

int main(void){
	int num, count = 1;
	scanf("%d", &num);
	while(num > 10){
		num /= 10;
		count++;
	}
	printf("%d", count);
}