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View Compilation Error

0_0_27696950_28310.cpp
0_0_27696950_28310.cpp(7) : error C2146: 语法错误: 缺少“;”(在标识符“db”的前面)
0_0_27696950_28310.cpp(7) : error C4430: 缺少类型说明符 - 假定为 int。注意:  C++ 不支持默认 int
0_0_27696950_28310.cpp(35) : error C2146: 语法错误: 缺少“;”(在标识符“ans”的前面)
0_0_27696950_28310.cpp(35) : error C2065: “ans”: 未声明的标识符
0_0_27696950_28310.cpp(37) : error C2065: “ans”: 未声明的标识符
0_0_27696950_28310.cpp(37) : error C2064: 项不会计算为接受 1 个参数的函数
0_0_27696950_28310.cpp(38) : error C2065: “ans”: 未声明的标识符


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