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View Compilation Error

0_0_20446340_7797.cpp:4:6: error: expected nested-name-specifier before '&' token
 using namespace std;  
      ^
0_0_20446340_7797.cpp:4:21: error: expected identifier before '&' token
 using namespace std;  
                     ^
0_0_20446340_7797.cpp:4:26: error: expected constructor, destructor, or type conversion before ';' token
 using namespace std;  
                          ^
0_0_20446340_7797.cpp:4:27: error: 'std' does not name a type
 using namespace std;  
                           ^
0_0_20446340_7797.cpp:4:36: error: expected constructor, destructor, or type conversion before ';' token
 using namespace std;  
                                    ^
0_0_20446340_7797.cpp:4:42: error: expected constructor, destructor, or type conversion before ';' token
 using namespace std;  
                                          ^
0_0_20446340_7797.cpp:5:7: error: expected identifier before '&' token
 struct dian  
       ^
0_0_20446340_7797.cpp:5:12: error: invalid type in declaration before ';' token
 struct dian  
            ^
0_0_20446340_7797.cpp:5:12: error: 'nbsp' declared as reference but not initialized
0_0_20446340_7797.cpp:5:13: error: 'dian' does not name a type
 struct dian  
             ^
0_0_20446340_7797.cpp:5:28: error: expected constructor, destructor, or type conversion before ';' token
 struct dian  
                            ^
0_0_20446340_7797.cpp:6:1: error: expected unqualified-id before '{' token
 {  
 ^
0_0_20446340_7797.cpp:8:8: error: expected constructor, destructor, or type conversion before ';' token
 };  
        ^
0_0_20446340_7797.cpp:8:14: error: expected constructor, destructor, or type conversion before ';' token
 };  
              ^
0_0_20446340_7797.cpp:9:6: error: expected constructor, destructor, or type conversion before ';' token
   
      ^
0_0_20446340_7797.cpp:9:12: error: expected constructor, destructor, or type conversion before ';' token
   
            ^
0_0_20446340_7797.cpp:10:7: error: expected identifier before '&' token
 struct xian  
       ^
0_0_20446340_7797.cpp:10:12: error: invalid type in declaration before ';' token
 struct xian  
            ^
0_0_20446340_7797.cpp:10:12: error: redefinition of 'int& nbsp'
0_0_20446340_7797.cpp:5:8: note: 'int& nbsp' previously declared here
 struct dian  
        ^
0_0_20446340_7797.cpp:10:13: error: 'xian' does not name a type
 struct xian  
             ^
0_0_20446340_7797.cpp:10:28: error: expected constructor, destructor, or type conversion before ';' token
 struct xian  
                            ^
0_0_20446340_7797.cpp:11:1: error: expected unqualified-id before '{' token
 {  
 ^
0_0_20446340_7797.cpp:13:8: error: expected constructor, destructor, or type conversion before ';' token
 };  
        ^
0_0_20446340_7797.cpp:13:14: error: expected constructor, destructor, or type conversion before ';' token
 };  
              ^
0_0_20446340_7797.cpp:15:6: error: conflicting declaration 'bool& nbsp'
 bool judge(dian a,dian b,dian c,dian d)  
      ^
0_0_20446340_7797.cpp:5:8: note: previous declaration as 'int& nbsp'
 struct dian  
        ^
0_0_20446340_7797.cpp:15:16: error: expected constructor, destructor, or type conversion before '(' token
 bool judge(dian a,dian b,dian c,dian d)  
                ^
0_0_20446340_7797.cpp:15:27: error: 'a' does not name a type
 bool judge(dian a,dian b,dian c,dian d)  
                           ^
0_0_20446340_7797.cpp:15:39: error: 'b' does not name a type
 bool judge(dian a,dian b,dian c,dian d)  
                                       ^
0_0_20446340_7797.cpp:15:51: error: 'c' does not name a type
 bool judge(dian a,dian b,dian c,dian d)  
                                                   ^
0_0_20446340_7797.cpp:15:63: error: 'd' does not name a type
 bool judge(dian a,dian b,dian c,dian d)  
                                                               ^
0_0_20446340_7797.cpp:15:76: error: expected constructor, destructor, or type conversion before ';' token
 bool judge(dian a,dian b,dian c,dian d)  
                                                                            ^
0_0_20446340_7797.cpp:16:1: error: expected unqualified-id before '{' token
 {  
 ^
0_0_20446340_7797.cpp:33:7: error: expected constructor, destructor, or type conversion before ';' token
 }  
       ^
0_0_20446340_7797.cpp:33:13: error: expected constructor, destructor, or type conversion before ';' token
 }  
             ^
0_0_20446340_7797.cpp:34:6: error: expected constructor, destructor, or type conversion before ';' token
   
      ^
0_0_20446340_7797.cpp:34:12: error: expected constructor, destructor, or type conversion before ';' token
   
            ^
0_0_20446340_7797.cpp:35:5: error: redefinition of 'int& nbsp'
 int main()  
     ^
0_0_20446340_7797.cpp:5:8: note: 'int& nbsp' previously declared here
 struct dian  
        ^
0_0_20446340_7797.cpp:35:17: error: expected constructor, destructor, or type conversion before 'nbsp'
 int main()  
                 ^
0_0_20446340_7797.cpp:35:27: error: expected constructor, destructor, or type conversion before ';' token
 int main()  
                           ^
0_0_20446340_7797.cpp:36:1: error: expected unqualified-id before '{' token
 {  
 ^


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