programming C( switch structure)

  enter month number and display the name of the month(switch content)

#include <stdio.h>

#include <stdlib.h>

int main()

{

    int opt;

    printf("enter month number");

    scanf("%d",&opt);

    switch(opt){

    case 1:printf("january");break;

    case 2:printf("february");break;

    case 3:printf("march");break;

    case 4:printf("april");break;

    case 5:printf("may");break;

    case 6:printf("june");break;

    case 7:printf("july");break;

    case 8:printf("august");break;

    case 9:printf("september");break;

    case 10:printf("october");break;

    case 11:printf("november");break;

    case 12:printf("december");break;

    default :printf("invalid month number");

    }