View Compilation Error

0_0_10010984_9076.c: In function `main':
0_0_10010984_9076.c:11: error: syntax error before "double"
0_0_10010984_9076.c:17: error: `c' undeclared (first use in this function)
0_0_10010984_9076.c:17: error: (Each undeclared identifier is reported only once
0_0_10010984_9076.c:17: error: for each function it appears in.)