View Compilation Error

0_0_21598145_3915.cpp: In function 'int main()':
0_0_21598145_3915.cpp:7:2: error: 'nbsp' was not declared in this scope
     int a, n, x;
  ^
0_0_21598145_3915.cpp:35:43: error: 'else' without a previous 'if'
             else
                                           ^
0_0_21598145_3915.cpp:47:57: error: 'else' without a previous 'if'
                 else
                                                         ^