View Compilation Error

0_0_35511804_17033.cpp
0_0_35511804_17033.cpp(5) : error C4430: 缺少类型说明符 - 假定为 int。注意:  C++ 不支持默认 int
0_0_35511804_17033.cpp(7) : error C2065: “doublen”: 未声明的标识符
0_0_35511804_17033.cpp(7) : error C2065: “m”: 未声明的标识符
0_0_35511804_17033.cpp(7) : error C2065: “i”: 未声明的标识符
0_0_35511804_17033.cpp(7) : error C2065: “sum”: 未声明的标识符
0_0_35511804_17033.cpp(9) : error C2065: “n”: 未声明的标识符
0_0_35511804_17033.cpp(9) : error C2065: “m”: 未声明的标识符
0_0_35511804_17033.cpp(9) : fatal error C1903: 无法从以前的错误中恢复；正在停止编译