View Compilation Error

0_0_1550148_3041.c:13: error: syntax error before '/' token
0_0_1550148_3041.c:17: error: `x' undeclared here (not in a function)
0_0_1550148_3041.c:20: error: syntax error before "return"
0_0_1550148_3041.c:18: error: storage size of `t' isn't known
0_0_1550148_3041.c:19: error: storage size of `r' isn't known