View Compilation Error

0_0_10742747_3592.cpp: In function `int main()':
0_0_10742747_3592.cpp:50: error: `jeo' undeclared (first use this function)
0_0_10742747_3592.cpp:50: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_10742747_3592.cpp:51: error: `pi' undeclared (first use this function)