View Compilation Error

799174_0_0_25932.c: In function `main':
799174_0_0_25932.c:11: error: `data' undeclared (first use in this function)
799174_0_0_25932.c:11: error: (Each undeclared identifier is reported only once
799174_0_0_25932.c:11: error: for each function it appears in.)
799174_0_0_25932.c:11: error: syntax error before "orz"
799174_0_0_25932.c:22: error: `orz' undeclared (first use in this function)