View Compilation Error

0_0_11237385_7875.cpp: In function `long long int aabs(long long int, long long int)':
0_0_11237385_7875.cpp:32: error: `a' undeclared (first use this function)
0_0_11237385_7875.cpp:32: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_11237385_7875.cpp:32: error: `b' undeclared (first use this function)