View Compilation Error

0_0_7590969_31583.cpp: In function `void valora()':
0_0_7590969_31583.cpp:129: error: `sor' undeclared (first use this function)
0_0_7590969_31583.cpp:129: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_7590969_31583.cpp:129: error: expected `;' at end of input
0_0_7590969_31583.cpp:129: error: expected `}' at end of input