//find a given triangle (with 3 sides) valid or not
#include "stdio.h"
int main ()
{
int s1,s2,s3;
printf ("Enter three sides :\n");
scanf ("%i%i%i",&s1,&s2,&s3);
if (s1+s2>s3 && s3>s2 && s3>s1)
{
printf ("The triangle is valid \n");
}
else if (s1+s3>s2 && s2>s3 && s2>s1)
{
printf ("The triangle is valid \n");
}
else if (s2+s3>s1 && s1>s2 && s1>s3)
{
printf ("The triangle is valid \n");
}
else if (s1==s2 && s2==s3 && s3==s1)
{
printf ("The triangle is valid \n");
}
else
{
printf ("The triangle is not valid \n");
}
return 0;
}
output output otuput output
Enter three sides :
3
4
5
The triangle is valid
or
Enter three sides :
5
5
5
The triangle is valid
or
Enter three sides :
5
5
4
The triangle is not valid
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