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View Compilation Error

0_0_20657578_14550.cpp
0_0_20657578_14550.cpp(3) : error C2873: “namespacestd”: 符号不能用在 using 声明中
0_0_20657578_14550.cpp(7) : error C3874: “main”的返回类型应为“int”而非“double”
0_0_20657578_14550.cpp(8) : error C2065: “cout”: 未声明的标识符
0_0_20657578_14550.cpp(8) : error C2065: ““请输入球的半径””: 未声明的标识符
0_0_20657578_14550.cpp(8) : error C2065: “endl”: 未声明的标识符
0_0_20657578_14550.cpp(9) : error C2065: “for(i”: 未声明的标识符
0_0_20657578_14550.cpp(10) : error C2146: 语法错误: 缺少“;”(在标识符“)”的前面)
0_0_20657578_14550.cpp(10) : error C2065: “)”: 未声明的标识符
0_0_20657578_14550.cpp(10) : error C2146: 语法错误: 缺少“;”(在标识符“cin”的前面)
0_0_20657578_14550.cpp(10) : error C2065: “cin”: 未声明的标识符
0_0_20657578_14550.cpp(13) : error C2065: “cout”: 未声明的标识符
0_0_20657578_14550.cpp(13) : error C2065: “endl”: 未声明的标识符


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