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View Compilation Error

0_0_21782240_9761.cpp:5:8: error: macro names must be identifiers
 #define NMAX 55  
        ^
0_0_21782240_9761.cpp:4:6: error: expected nested-name-specifier before '&' token
 using namespace std;  
      ^
0_0_21782240_9761.cpp:4:21: error: expected identifier before '&' token
 using namespace std;  
                     ^
0_0_21782240_9761.cpp:4:26: error: expected constructor, destructor, or type conversion before ';' token
 using namespace std;  
                          ^
0_0_21782240_9761.cpp:4:27: error: 'std' does not name a type
 using namespace std;  
                           ^
0_0_21782240_9761.cpp:4:36: error: expected constructor, destructor, or type conversion before ';' token
 using namespace std;  
                                    ^
0_0_21782240_9761.cpp:4:42: error: expected constructor, destructor, or type conversion before ';' token
 using namespace std;  
                                          ^
0_0_21782240_9761.cpp:6:6: error: 'nbsp' declared as reference but not initialized
 bool path[NMAX][NMAX];  
      ^
0_0_21782240_9761.cpp:6:11: error: 'path' does not name a type
 bool path[NMAX][NMAX];  
           ^
0_0_21782240_9761.cpp:6:33: error: expected constructor, destructor, or type conversion before ';' token
 bool path[NMAX][NMAX];  
                                 ^
0_0_21782240_9761.cpp:6:39: error: expected constructor, destructor, or type conversion before ';' token
 bool path[NMAX][NMAX];  
                                       ^
0_0_21782240_9761.cpp:7:5: error: conflicting declaration 'int& nbsp'
 int n,mmax;  
     ^
0_0_21782240_9761.cpp:6:6: note: previous declaration as 'bool& nbsp'
 bool path[NMAX][NMAX];  
      ^
0_0_21782240_9761.cpp:7:10: error: 'n' does not name a type
 int n,mmax;  
          ^
0_0_21782240_9761.cpp:7:22: error: expected constructor, destructor, or type conversion before ';' token
 int n,mmax;  
                      ^
0_0_21782240_9761.cpp:7:28: error: expected constructor, destructor, or type conversion before ';' token
 int n,mmax;  
                            ^
0_0_21782240_9761.cpp:8:5: error: conflicting declaration 'int& nbsp'
 int dp[NMAX];  
     ^
0_0_21782240_9761.cpp:6:6: note: previous declaration as 'bool& nbsp'
 bool path[NMAX][NMAX];  
      ^
0_0_21782240_9761.cpp:8:10: error: 'dp' does not name a type
 int dp[NMAX];  
          ^
0_0_21782240_9761.cpp:8:24: error: expected constructor, destructor, or type conversion before ';' token
 int dp[NMAX];  
                        ^
0_0_21782240_9761.cpp:8:30: error: expected constructor, destructor, or type conversion before ';' token
 int dp[NMAX];  
                              ^
0_0_21782240_9761.cpp:9:6: error: redefinition of 'bool& nbsp'
 bool v[NMAX];  
      ^
0_0_21782240_9761.cpp:6:6: note: 'bool& nbsp' previously declared here
 bool path[NMAX][NMAX];  
      ^
0_0_21782240_9761.cpp:9:11: error: 'v' does not name a type
 bool v[NMAX];  
           ^
0_0_21782240_9761.cpp:9:24: error: expected constructor, destructor, or type conversion before ';' token
 bool v[NMAX];  
                        ^
0_0_21782240_9761.cpp:9:30: error: expected constructor, destructor, or type conversion before ';' token
 bool v[NMAX];  
                              ^
0_0_21782240_9761.cpp:10:5: error: conflicting declaration 'int& nbsp'
 int seq[NMAX], seq_pos;  
     ^
0_0_21782240_9761.cpp:6:6: note: previous declaration as 'bool& nbsp'
 bool path[NMAX][NMAX];  
      ^
0_0_21782240_9761.cpp:10:10: error: 'seq' does not name a type
 int seq[NMAX], seq_pos;  
          ^
0_0_21782240_9761.cpp:10:26: error: 'seq_pos' does not name a type
 int seq[NMAX], seq_pos;  
                          ^
0_0_21782240_9761.cpp:10:39: error: expected constructor, destructor, or type conversion before ';' token
 int seq[NMAX], seq_pos;  
                                       ^
0_0_21782240_9761.cpp:10:45: error: expected constructor, destructor, or type conversion before ';' token
 int seq[NMAX], seq_pos;  
                                             ^
0_0_21782240_9761.cpp:12:6: error: redefinition of 'bool& nbsp'
 bool dfs(int pos, int size)  
      ^
0_0_21782240_9761.cpp:6:6: note: 'bool& nbsp' previously declared here
 bool path[NMAX][NMAX];  
      ^
0_0_21782240_9761.cpp:12:23: error: expected ')' before ';' token
 bool dfs(int pos, int size)  
                       ^
0_0_21782240_9761.cpp:12:23: error: expected constructor, destructor, or type conversion before ';' token
0_0_21782240_9761.cpp:12:24: error: 'pos' does not name a type
 bool dfs(int pos, int size)  
                        ^
0_0_21782240_9761.cpp:12:38: error: conflicting declaration 'int& nbsp'
 bool dfs(int pos, int size)  
                                      ^
0_0_21782240_9761.cpp:6:6: note: previous declaration as 'bool& nbsp'
 bool path[NMAX][NMAX];  
      ^
0_0_21782240_9761.cpp:12:43: error: 'size' does not name a type
 bool dfs(int pos, int size)  
                                           ^
0_0_21782240_9761.cpp:12:59: error: expected constructor, destructor, or type conversion before ';' token
 bool dfs(int pos, int size)  
                                                           ^
0_0_21782240_9761.cpp:13:1: error: expected unqualified-id before '{' token
 {  
 ^


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