View Compilation Error

0_0_24712363_17055.cpp
0_0_24712363_17055.cpp(37) : error C2065: “set”: 未声明的标识符
0_0_24712363_17055.cpp(37) : error C2062: 意外的类型“int” 
0_0_24712363_17055.cpp(48) : error C2065: “se”: 未声明的标识符
0_0_24712363_17055.cpp(48) : error C2228: “.count”的左边必须有类/结构/联合
        类型是“unknown-type”
0_0_24712363_17055.cpp(49) : error C2065: “se”: 未声明的标识符
0_0_24712363_17055.cpp(49) : error C2228: “.insert”的左边必须有类/结构/联合
        类型是“unknown-type”
0_0_24712363_17055.cpp(54) : error C2065: “se”: 未声明的标识符
0_0_24712363_17055.cpp(54) : error C2228: “.count”的左边必须有类/结构/联合
        类型是“unknown-type”
0_0_24712363_17055.cpp(59) : error C2065: “se”: 未声明的标识符
0_0_24712363_17055.cpp(59) : error C2228: “.size”的左边必须有类/结构/联合
        类型是“unknown-type”