View Compilation Error

205983_0_29291.cpp: In function `int main()':
205983_0_29291.cpp:36: error: `sa' undeclared (first use this function)
205983_0_29291.cpp:36: error: (Each undeclared identifier is reported only once for each function it appears in.)
205983_0_29291.cpp: At global scope:
205983_0_29291.cpp:46: error: expected `,' or `...' before '*' token
205983_0_29291.cpp:47: error: ISO C++ forbids declaration of `vo9id' with no type
205983_0_29291.cpp: In function `int cmp(int)':
205983_0_29291.cpp:48: error: `a' undeclared (first use this function)
205983_0_29291.cpp:49: error: `b' undeclared (first use this function)