View Compilation Error

0_0_22341678_20965.cpp: In function 'int lowBit(int)':
0_0_22341678_20965.cpp:14:2: error: 'nbsp' was not declared in this scope
     return x & -x;
  ^
0_0_22341678_20965.cpp: In function 'int main()':
0_0_22341678_20965.cpp:37:2: error: 'nbsp' was not declared in this scope
     int N, M;
  ^
0_0_22341678_20965.cpp:47:82: error: 'i' was not declared in this scope
             cin>>num[i];
                                                                                  ^
0_0_22341678_20965.cpp:59:73: error: 'else' without a previous 'if'
             else
                                                                         ^
0_0_22341678_20965.cpp:65:125: error: 'i' was not declared in this scope
                     num[i]=num[i+1];
                                                                                                                             ^