View Compilation Error

0_0_3983050_20781.c: In function `main':
0_0_3983050_20781.c:12: error: `point' undeclared (first use in this function)
0_0_3983050_20781.c:12: error: (Each undeclared identifier is reported only once
0_0_3983050_20781.c:12: error: for each function it appears in.)
0_0_3983050_20781.c:12: error: syntax error before "a"
0_0_3983050_20781.c:15: error: `a' undeclared (first use in this function)
0_0_3983050_20781.c:44: error: `re' undeclared (first use in this function)