Basic-dpp-set/Triangles check using switch case at main · mhjcodes/Basic-dpp-set · GitHub

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int main()
{
  while(1)
  {
    int n,a,b,c,d;
    printf("\n1.Isosceles triangle check\n");
    printf("2.Right triangle check\n");
    printf("3.Equilateral triangle check\n");
    printf("4.Exit\n\n");
    printf("Select an option:");
    scanf("%d",&n);
   switch(n)
   {
    case 1:
    printf("Enter three nos");
    scanf("%d %d %d",&a,&b,&c);
    if(a+b>c && b+c>a && a+c>b)
    {
       if(a==b || b==c || a==c)
       printf("Test pass");
       else
       printf("Test fail");
       printf("\n");
    }
    else
    printf("Triangle Not possible\n");
    break;
    case 2:
    printf("Enter three nos");
    scanf("%d %d %d",&a,&b,&c);
    if(a+b>c && b+c>a && a+c>b)
    {
       if(c*c== a*a+ b*b || b*b==a*a+ c*c || a*a== c*c + b*b)
       printf("Test pass");
       else
       printf("Test fail");
       printf("\n");
    }
    else
    printf("Triangle Not possible\n");
    break;
    case 3:
    printf("Enter three nos");
    scanf("%d %d %d",&a,&b,&c);
    if(a+b>c && b+c>a && a+c>b)
    {
      if(a==b & b==c)
      printf("Test pass");
      else
      printf("Test fail");
      printf("\n");
    }
    else
    printf("Triangle Not possible\n");
    break;
    case 4:
    break;
    default :
    printf("Invalid entry\n\n");
   }
   if(n==4)
   break;
  }
 return 0;
}