View Compilation Error

0_0_10882207_8727.cpp: In function `void build_sa(int*, int, int)':
0_0_10882207_8727.cpp:17: error: `ws' undeclared (first use this function)
0_0_10882207_8727.cpp:17: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_10882207_8727.cpp:26: error: `wc' undeclared (first use this function)
0_0_10882207_8727.cpp: In function `int getnum(int, int)':
0_0_10882207_8727.cpp:56: error: expected `;' before "minl"