View Compilation Error

0_0_21055903_2371.cpp: In function 'int main()':
0_0_21055903_2371.cpp:5:2: error: 'nbsp' was not declared in this scope
     int n,i,len1,len2,j,k,pi,t,flag;
  ^
0_0_21055903_2371.cpp:27:68: error: 'else' without a previous 'if'
             else
                                                                    ^
0_0_21055903_2371.cpp:41:44: error: 'else' without a previous 'if'
         else if(k>=0)
                                            ^
0_0_21055903_2371.cpp:49:44: error: 'else' without a previous 'if'
         else if(a[pi]!=0)//对于位数相同2个数加后最高位大于10的
                                            ^
0_0_21055903_2371.cpp:54:92: error: continue statement not within a loop
                 continue;
                                                                                            ^
0_0_21055903_2371.cpp:55:68: error: 'else' without a previous 'if'
             else
                                                                    ^
0_0_21055903_2371.cpp: At global scope:
0_0_21055903_2371.cpp:68:6: error: expected constructor, destructor, or type conversion before ';' token
  
      ^