Answer / vadivel

solution for 1st case:
Given:(x1,y1),(x2,y2),(x3,y3),the co-ordinates of the
vertices of the triangle.
Let (xx,yy) be the pt to be located.
Find the equations of the lines {(x1,y1),(x2,y2)} and
{(x1,y1)(x3,y3)} using the formula
((y-y1)/(y2-y1))=((x-x1)/(x2-x1))

Now substitute the y value in the 2 equations got. You 'll
be getting the x limits. If the given x value lies within
the limits you have found,the given pt is within the
triangle or else it is not.

#include<stdio.h> main() { int i=1,j=2; switch(i) { case 1: printf("GOOD"); break; case j: printf("BAD"); break; } }

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main( ) { char *q; int j; for (j=0; j<3; j++) scanf(“%s” ,(q+j)); for (j=0; j<3; j++) printf(“%c” ,*(q+j)); for (j=0; j<3; j++) printf(“%s” ,(q+j)); }

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