View Compilation Error

0_0_36019311_23459.cpp
0_0_36019311_23459.cpp(70) : error C2065: “vector”: 未声明的标识符
0_0_36019311_23459.cpp(70) : error C2275: “ll”: 将此类型用作表达式非法
        0_0_36019311_23459.cpp(6) : 参见“ll”的声明
0_0_36019311_23459.cpp(70) : error C2065: “ans”: 未声明的标识符
0_0_36019311_23459.cpp(74) : error C2065: “ans”: 未声明的标识符
0_0_36019311_23459.cpp(74) : error C2228: “.push_back”的左边必须有类/结构/联合
        类型是“unknown-type”
0_0_36019311_23459.cpp(77) : error C2065: “ans”: 未声明的标识符
0_0_36019311_23459.cpp(77) : error C2228: “.push_back”的左边必须有类/结构/联合
        类型是“unknown-type”
0_0_36019311_23459.cpp(82) : error C2065: “ans”: 未声明的标识符