View Compilation Error

0_0_30365182_23071.cpp: In function 'int find(int)':
0_0_30365182_23071.cpp:34:24: error: 'f' was not declared in this scope
 int find(int x){return f[x]==x?x:f[x]=find(f[x]);}
                        ^
0_0_30365182_23071.cpp: In function 'int main()':
0_0_30365182_23071.cpp:80:24: error: 'Find' was not declared in this scope
             fx = Find(u), fy = Find(v);
                        ^
0_0_30365182_23071.cpp:85:29: error: expected primary-expression before 'continue'
             printf("YES\n"),continue;   
                             ^