View Compilation Error

0_0_29484618_20759.cpp:5:6: error: expected constructor, destructor, or type conversion before ';' token
  
      ^
0_0_29484618_20759.cpp: In function 'int main()':
0_0_29484618_20759.cpp:8:2: error: 'nbsp' was not declared in this scope
     int N, M, i, j, a[23][23], b[23][23], t, k;
  ^
0_0_29484618_20759.cpp:14:73: error: break statement not within loop or switch
             break;
                                                                         ^
0_0_29484618_20759.cpp: At global scope:
0_0_29484618_20759.cpp:56:6: error: expected constructor, destructor, or type conversion before ';' token
  
      ^
0_0_29484618_20759.cpp: In function 'int _evalue(int, int)':
0_0_29484618_20759.cpp:59:2: error: 'nbsp' was not declared in this scope
     if( x * y > 0 )
  ^
0_0_29484618_20759.cpp:63:25: error: 'else' without a previous 'if'
     else if( x * y < 0 )
                         ^
0_0_29484618_20759.cpp:67:25: error: 'else' without a previous 'if'
     else
                         ^