convert Days to Remaining Year, Month, Week and Days

#include<stdio.h>
#include<math.h>
int main(void)

{
    int days,weeks,years,months;
    printf("Enter days: ");
    scanf("%d",&days);
    years=days/365;
        //1 year=365 days
    months=(days-(years*365))/30;
        //1 month=30 days
    weeks=(days-(years*365))/7;
        //1 week =7 days
    days=days-((years*365)+(weeks*7));
    printf("Years: %d\n",years);
    printf("Months: %d\n",months);
    printf("Weeks: %d\n",weeks);
    printf("Days: %d\n",days);


}