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View Compilation Error

0_0_25066065_27420.cpp
0_0_25066065_27420.cpp(5) : error C2065: “cin”: 未声明的标识符
0_0_25066065_27420.cpp(10) : error C2065: “cin”: 未声明的标识符
0_0_25066065_27420.cpp(15) : error C2065: “cout”: 未声明的标识符
0_0_25066065_27420.cpp(15) : error C2065: “endl”: 未声明的标识符


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