tu0.cpp
C:\Documents and Settings\Administrator.A9440DB3015349E\桌面\th\tu0.cpp(259) : warning C4508: 'main' : function should return a value; 'void' return type assumed
C:\Documents and Settings\Administrator.A9440DB3015349E\桌面\th\tu0.cpp(157) : warning C4715: 'find_shortest_way' : not all control paths return a value
C:\Documents and Settings\Administrator.A9440DB3015349E\桌面\th\tu0.cpp(190) : warning C4715: 'add_arc' : not all control paths return a value
C:\Documents and Settings\Administrator.A9440DB3015349E\桌面\th\tu0.cpp(205) : error C4716: 'add_vex' : must return a value
执行 cl.exe 时出错