View Compilation Error

0_0_20438482_1471.cpp: In function 'int main()':
0_0_20438482_1471.cpp:3:2: error: 'nbsp' was not declared in this scope
     int n,a;
  ^
0_0_20438482_1471.cpp:8:49: error: 'else' without a previous 'if'
         else
                                                 ^