View Compilation Error

0_0_14945100_32498.cpp:28:16: error: 'Po' does not name a type
 int dist(const Po
                ^
0_0_14945100_32498.cpp:28:16: error: expected ',' or '...' at end of input
0_0_14945100_32498.cpp:28:16: error: expected ')' at end of input
0_0_14945100_32498.cpp:28:16: error: expected initializer at end of input