C Program to Enter Week Number and Print Day of Week

program:

#include<stdio.h>
int main()
{
 int num;
 printf("Enter any number\n");
 scanf("%d",&num);
 switch(num)
 {
  case 1:
   printf("Monday");
   break;
  case 2:
   printf("Tuesday");
   break;
  case 3:
   printf("Wednesday");
   break;
  case 4:
   printf("Thrusday");
   break;
  case 5:
   printf("Friday");
   break;
  case 6:
   printf("Saturday");
   break;
  case 7:
   printf("Sunday");
   break;
  default:
   printf("Invalid input");
   return 0;
 }
}

output: