View Compilation Error

0_0_2988037_8645.c: In function `main':
0_0_2988037_8645.c:11: error: `point' undeclared (first use in this function)
0_0_2988037_8645.c:11: error: (Each undeclared identifier is reported only once
0_0_2988037_8645.c:11: error: for each function it appears in.)
0_0_2988037_8645.c:11: error: syntax error before "leftbottom"
0_0_2988037_8645.c:17: error: `leftbottom' undeclared (first use in this function)
0_0_2988037_8645.c:17: error: `righttop' undeclared (first use in this function)