c - Printing an integer -

i have user input date, e.g. 'january 10 12' signifying month, day , year. works fine if month 2 digit number, if user enters 'january 12 01' or number 0 in front of 'january 12 1' if month 01 or 'january 12 0' if month 00 instead of input. there form of formatting going wrong?

#include <stdio.h> #include <string.h> #include <stdlib.h>  typedef int (*compfn)(const void*, const void*);  struct date {     int month;     int day; //the day of month (e.g. 18)     int year; //the year of date     };  char* months[]= {    "january", "february",    "march", "april",    "may", "june",    "july", "august",    "september", "october",    "november", "december"};   int getmonth(char tempmonth[]) {     if(strcmp(tempmonth, months[0]) == 0) return 0;     if(strcmp(tempmonth, months[1]) == 0) return 1;     if(strcmp(tempmonth, months[2]) == 0) return 2;     if(strcmp(tempmonth, months[3]) == 0) return 3;     if(strcmp(tempmonth, months[4]) == 0) return 4;     if(strcmp(tempmonth, months[5]) == 0) return 5;     if(strcmp(tempmonth, months[6]) == 0) return 6;     if(strcmp(tempmonth, months[7]) == 0) return 7;     if(strcmp(tempmonth, months[8]) == 0) return 8;     if(strcmp(tempmonth, months[9]) == 0) return 9;     if(strcmp(tempmonth, months[10]) == 0) return 10;     if(strcmp(tempmonth, months[11]) == 0) return 11; }  int sortdates(struct date *elem1, struct date *elem2) {     if ( elem1->year < elem2->year)         return -1;     else if ( elem1->year > elem2->year )         return 1;       /* here sure years equal, go on comparing months */      if ( elem1->month < elem2->month )         return -1;     else if ( elem1->month > elem2->month )         return 1;       /* here sure months equal, go on comparing days */      if ( elem1->day < elem2->day )         return -1;     else if ( elem1->day > elem2->day )         return 1;      else         return 0;  }  main() {     int n;     int i;     char tempmonth[255]; //used store month until checked      scanf("%d", &n);      struct date *list;      list = (struct date *)malloc((n * sizeof(struct date)));      for(i = 0; < n; i++)     {         scanf("%s %d %d", tempmonth, &list[i].day, &list[i].year);         list[i].month = getmonth(tempmonth);     }      qsort(list, n, sizeof(struct date), (compfn)sortdates);      for(i = 0; < n; i++)     {         printf("%s %d %d\n", months[list[i].month], list[i].day, list[i].year);     }  } 

if want output @ least 2 digits, zeros in front, use %02d format string instead of %d.