View Compilation Error

0_0_22174143_7439.cpp:3:7: error: 'T' does not name a type
 const T=2;
       ^
0_0_22174143_7439.cpp: In function 'int main()':
0_0_22174143_7439.cpp:29:11: error: 'T' was not declared in this scope
 {Nclass N[T];
           ^
0_0_22174143_7439.cpp:31:2: error: 'N' was not declared in this scope
  N[i].get();
  ^
0_0_22174143_7439.cpp:36:2: error: 'os' was not declared in this scope
  os[j]=N[j].ones();
  ^
0_0_22174143_7439.cpp:36:8: error: 'N' was not declared in this scope
  os[j]=N[j].ones();
        ^
0_0_22174143_7439.cpp:37:14: error: 'os' was not declared in this scope
 cout<<maxmum(os,T)<<endl;
              ^