View Compilation Error

0_0_30373625_13542.cpp
0_0_30373625_13542.cpp(4) : error C2065: “intx”: 未声明的标识符
0_0_30373625_13542.cpp(4) : error C2062: 意外的类型“int” 
0_0_30373625_13542.cpp(4) : error C2143: 语法错误 : 缺少“;”(在“{”的前面)
0_0_30373625_13542.cpp(4) : error C2447: “{”: 缺少函数标题(是否是老式的形式表?)
0_0_30373625_13542.cpp(14) : error C3861: “gcd”:  找不到标识符