View Compilation Error

0_0_17247029_30049.cpp: In function 'int find(int)':
0_0_17247029_30049.cpp:31:2: error: 'nbsp' was not declared in this scope
     for (int i = 1; i <= boy; i++)
  ^
0_0_17247029_30049.cpp:33:61: error: 'i' was not declared in this scope
         if (link[x][i] && book[i] == 0)//如果有边 且 未被搜索过
                                                             ^
0_0_17247029_30049.cpp:35:78: error: 'i' was not declared in this scope
             book[i] = 1;
                                                                              ^
0_0_17247029_30049.cpp: In function 'int main()':
0_0_17247029_30049.cpp:47:2: error: 'nbsp' was not declared in this scope
     int n;
  ^
0_0_17247029_30049.cpp:52:73: error: break statement not within loop or switch
             break;
                                                                         ^
0_0_17247029_30049.cpp:55:78: error: 'i' was not declared in this scope
             link[i][j] = 1;
                                                                              ^
0_0_17247029_30049.cpp:55:81: error: 'j' was not declared in this scope
             link[i][j] = 1;
                                                                                 ^