Run id: 76838

Main.cc:1:7: error: expected constructor, destructor, or type conversion before '(' token
 printf("请输入一个数："); scanf("%lf", & x); result = sqrt(x); printf("%lf的平方根为：%lf", x, result);
       ^
Main.cc:1:39: error: expected constructor, destructor, or type conversion before '(' token
 printf("请输入一个数："); scanf("%lf", & x); result = sqrt(x); printf("%lf的平方根为：%lf", x, result);
                                       ^
Main.cc:1:53: error: 'result' does not name a type
 printf("请输入一个数："); scanf("%lf", & x); result = sqrt(x); printf("%lf的平方根为：%lf", x, result);
                                                     ^
Main.cc:1:77: error: expected constructor, destructor, or type conversion before '(' token
 printf("请输入一个数："); scanf("%lf", & x); result = sqrt(x); printf("%lf的平方根为：%lf", x, result);
                                                                             ^