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View Compilation Error

0_0_21021465_21498.cpp:6:6: error: expected nested-name-specifier before '&' token
 using namespace std;  
      ^
0_0_21021465_21498.cpp:6:21: error: expected identifier before '&' token
 using namespace std;  
                     ^
0_0_21021465_21498.cpp:6:26: error: expected constructor, destructor, or type conversion before ';' token
 using namespace std;  
                          ^
0_0_21021465_21498.cpp:6:27: error: 'std' does not name a type
 using namespace std;  
                           ^
0_0_21021465_21498.cpp:6:36: error: expected constructor, destructor, or type conversion before ';' token
 using namespace std;  
                                    ^
0_0_21021465_21498.cpp:6:42: error: expected constructor, destructor, or type conversion before ';' token
 using namespace std;  
                                          ^
0_0_21021465_21498.cpp:7:5: error: 'nbsp' declared as reference but not initialized
 int dp[410][410][2],num[410];  
     ^
0_0_21021465_21498.cpp:7:10: error: 'dp' does not name a type
 int dp[410][410][2],num[410];  
          ^
0_0_21021465_21498.cpp:7:40: error: expected constructor, destructor, or type conversion before ';' token
 int dp[410][410][2],num[410];  
                                        ^
0_0_21021465_21498.cpp:7:46: error: expected constructor, destructor, or type conversion before ';' token
 int dp[410][410][2],num[410];  
                                              ^
0_0_21021465_21498.cpp:8:5: error: redefinition of 'int& nbsp'
 int main()  
     ^
0_0_21021465_21498.cpp:7:5: note: 'int& nbsp' previously declared here
 int dp[410][410][2],num[410];  
     ^
0_0_21021465_21498.cpp:8:17: error: expected constructor, destructor, or type conversion before 'nbsp'
 int main()  
                 ^
0_0_21021465_21498.cpp:8:27: error: expected constructor, destructor, or type conversion before ';' token
 int main()  
                           ^
0_0_21021465_21498.cpp:9:1: error: expected unqualified-id before '{' token
 { int t,n,i,j,k;  
 ^


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