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View Compilation Error

0_0_20446858_16131.cpp:3:5: error: 'nbsp' declared as reference but not initialized
 int main(){  
     ^
0_0_20446858_16131.cpp: In function 'int main()':
0_0_20446858_16131.cpp:4:29: error: 'nbsp' declared as reference but not initialized
     int n;  
                             ^
0_0_20446858_16131.cpp:4:34: error: 'n' was not declared in this scope
     int n;  
                                  ^
0_0_20446858_16131.cpp:5:30: error: conflicting declaration 'char& nbsp'
     char ch[100];  
                              ^
0_0_20446858_16131.cpp:4:29: note: previous declaration as 'int& nbsp'
     int n;  
                             ^
0_0_20446858_16131.cpp:5:35: error: 'ch' was not declared in this scope
     char ch[100];  
                                   ^
0_0_20446858_16131.cpp:8:29: error: redeclaration of 'int& nbsp'
     int num_a,num_e,num_i,num_o,num_u;  
                             ^
0_0_20446858_16131.cpp:4:29: note: 'int& nbsp' previously declared here
     int n;  
                             ^
0_0_20446858_16131.cpp:8:34: error: 'num_a' was not declared in this scope
     int num_a,num_e,num_i,num_o,num_u;  
                                  ^
0_0_20446858_16131.cpp:8:40: error: 'num_e' was not declared in this scope
     int num_a,num_e,num_i,num_o,num_u;  
                                        ^
0_0_20446858_16131.cpp:8:46: error: 'num_i' was not declared in this scope
     int num_a,num_e,num_i,num_o,num_u;  
                                              ^
0_0_20446858_16131.cpp:8:52: error: 'num_o' was not declared in this scope
     int num_a,num_e,num_i,num_o,num_u;  
                                                    ^
0_0_20446858_16131.cpp:8:58: error: 'num_u' was not declared in this scope
     int num_a,num_e,num_i,num_o,num_u;  
                                                          ^
0_0_20446858_16131.cpp:16:53: error: 'nbsp' declared as reference but not initialized
         int len=strlen(ch);  
                                                     ^
0_0_20446858_16131.cpp:16:58: error: 'len' was not declared in this scope
         int len=strlen(ch);  
                                                          ^
0_0_20446858_16131.cpp:17:57: error: 'nbsp' declared as reference but not initialized
         for(int i=0;i<len;i++){  
                                                         ^
0_0_20446858_16131.cpp:17:62: error: 'i' was not declared in this scope
         for(int i=0;i<len;i++){  
                                                              ^
0_0_20446858_16131.cpp:17:71: error: expected ')' before ';' token
         for(int i=0;i<len;i++){  
                                                                       ^
0_0_20446858_16131.cpp:17:72: error: 'i' was not declared in this scope
         for(int i=0;i<len;i++){  
                                                                        ^
0_0_20446858_16131.cpp: At global scope:
0_0_20446858_16131.cpp:29:7: error: expected constructor, destructor, or type conversion before ';' token
 }  
       ^
0_0_20446858_16131.cpp:29:13: error: expected constructor, destructor, or type conversion before ';' token
 }  
             ^


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