View Compilation Error

0_0_26354670_21578.cpp: In function 'int main()':
0_0_26354670_21578.cpp:14:2: error: 'nbsp' was not declared in this scope
     int n;
  ^
0_0_26354670_21578.cpp:29:53: error: 'i' was not declared in this scope
             for(int j=i;j;j=(j-1)&i)
                                                     ^
0_0_26354670_21578.cpp:31:60: error: 'i' was not declared in this scope
                 dp[i]+=cover[j];
                                                            ^
0_0_26354670_21578.cpp:31:70: error: 'j' was not declared in this scope
                 dp[i]+=cover[j];
                                                                      ^
0_0_26354670_21578.cpp:33:58: error: 'i' was not declared in this scope
             ans=max(ans,dp[i]);
                                                          ^