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View Compilation Error

0_0_20446687_6966.cpp:2:6: error: expected nested-name-specifier before '&' token
 using namespace std;  
      ^
0_0_20446687_6966.cpp:2:21: error: expected identifier before '&' token
 using namespace std;  
                     ^
0_0_20446687_6966.cpp:2:26: error: expected constructor, destructor, or type conversion before ';' token
 using namespace std;  
                          ^
0_0_20446687_6966.cpp:2:27: error: 'std' does not name a type
 using namespace std;  
                           ^
0_0_20446687_6966.cpp:2:36: error: expected constructor, destructor, or type conversion before ';' token
 using namespace std;  
                                    ^
0_0_20446687_6966.cpp:2:42: error: expected constructor, destructor, or type conversion before ';' token
 using namespace std;  
                                          ^
0_0_20446687_6966.cpp:3:5: error: 'nbsp' declared as reference but not initialized
 int main(){  
     ^
0_0_20446687_6966.cpp: In function 'int main()':
0_0_20446687_6966.cpp:4:29: error: 'nbsp' declared as reference but not initialized
     int res[100];  
                             ^
0_0_20446687_6966.cpp:4:34: error: 'res' was not declared in this scope
     int res[100];  
                                  ^
0_0_20446687_6966.cpp:5:29: error: redeclaration of 'int& nbsp'
     int cont=0;  
                             ^
0_0_20446687_6966.cpp:4:29: note: 'int& nbsp' previously declared here
     int res[100];  
                             ^
0_0_20446687_6966.cpp:5:34: error: 'cont' was not declared in this scope
     int cont=0;  
                                  ^
0_0_20446687_6966.cpp:6:29: error: redeclaration of 'int& nbsp'
     int a[100];// to store the origin numbs   
                             ^
0_0_20446687_6966.cpp:4:29: note: 'int& nbsp' previously declared here
     int res[100];  
                             ^
0_0_20446687_6966.cpp:6:34: error: 'a' was not declared in this scope
     int a[100];// to store the origin numbs   
                                  ^
0_0_20446687_6966.cpp:7:29: error: redeclaration of 'int& nbsp'
     int n,m,sum=0,num=0;  
                             ^
0_0_20446687_6966.cpp:4:29: note: 'int& nbsp' previously declared here
     int res[100];  
                             ^
0_0_20446687_6966.cpp:7:34: error: 'n' was not declared in this scope
     int n,m,sum=0,num=0;  
                                  ^
0_0_20446687_6966.cpp:7:36: error: 'm' was not declared in this scope
     int n,m,sum=0,num=0;  
                                    ^
0_0_20446687_6966.cpp:7:38: error: 'sum' was not declared in this scope
     int n,m,sum=0,num=0;  
                                      ^
0_0_20446687_6966.cpp:7:44: error: 'num' was not declared in this scope
     int n,m,sum=0,num=0;  
                                            ^
0_0_20446687_6966.cpp:9:33: error: 'nbsp' declared as reference but not initialized
     for(int i=1;i<100;i++)  
                                 ^
0_0_20446687_6966.cpp:9:38: error: 'i' was not declared in this scope
     for(int i=1;i<100;i++)  
                                      ^
0_0_20446687_6966.cpp:9:47: error: expected ')' before ';' token
     for(int i=1;i<100;i++)  
                                               ^
0_0_20446687_6966.cpp:9:48: error: 'i' was not declared in this scope
     for(int i=1;i<100;i++)  
                                                ^
0_0_20446687_6966.cpp:11:31: error: 'cin' was not declared in this scope
     while(cin>>n>>m){  
                               ^
0_0_20446687_6966.cpp:11:31: note: suggested alternative:
In file included from 0_0_20446687_6966.cpp:1:0:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:60:18: note:   'std::cin'
   extern istream cin;  /// Linked to standard input
                  ^
0_0_20446687_6966.cpp:14:57: error: 'nbsp' declared as reference but not initialized
         for(int i=0;i<n;i++){  
                                                         ^
0_0_20446687_6966.cpp:14:69: error: expected ')' before ';' token
         for(int i=0;i<n;i++){  
                                                                     ^
0_0_20446687_6966.cpp:29:57: error: 'nbsp' declared as reference but not initialized
         for(int i=0;i<num;i++){  
                                                         ^
0_0_20446687_6966.cpp:29:71: error: expected ')' before ';' token
         for(int i=0;i<num;i++){  
                                                                       ^
0_0_20446687_6966.cpp:34:49: error: 'cout' was not declared in this scope
         cout<<endl;  
                                                 ^
0_0_20446687_6966.cpp:34:49: note: suggested alternative:
In file included from 0_0_20446687_6966.cpp:1:0:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:61:18: note:   'std::cout'
   extern ostream cout;  /// Linked to standard output
                  ^
0_0_20446687_6966.cpp:34:55: error: 'endl' was not declared in this scope
         cout<<endl;  
                                                       ^
0_0_20446687_6966.cpp:34:55: note: suggested alternative:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39:0,
                 from 0_0_20446687_6966.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:564:5: note:   'std::endl'
     endl(basic_ostream<_CharT, _Traits>& __os)
     ^
0_0_20446687_6966.cpp:38:32: error: invalid conversion from 'int*' to 'int' [-fpermissive]
     return 0;  
                                ^
0_0_20446687_6966.cpp: At global scope:
0_0_20446687_6966.cpp:39:7: error: expected constructor, destructor, or type conversion before ';' token
 }  
       ^
0_0_20446687_6966.cpp:39:13: error: expected constructor, destructor, or type conversion before ';' token
 }  
             ^


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