View Compilation Error

0_0_3983067_20531.c: In function `main':
0_0_3983067_20531.c:14: error: `point' undeclared (first use in this function)
0_0_3983067_20531.c:14: error: (Each undeclared identifier is reported only once
0_0_3983067_20531.c:14: error: for each function it appears in.)
0_0_3983067_20531.c:14: error: syntax error before "a"
0_0_3983067_20531.c:17: error: `a' undeclared (first use in this function)
0_0_3983067_20531.c:48: error: `re' undeclared (first use in this function)