View Compilation Error

0_0_17638565_8700.cpp: In function 'void dfs(int, int)':
0_0_17638565_8700.cpp:53:12: error: found ':' in nested-name-specifier, expected '::'
     for (i : mp[u])
            ^
0_0_17638565_8700.cpp:53:10: error: 'i' has not been declared
     for (i : mp[u])
          ^
0_0_17638565_8700.cpp:60:5: error: expected primary-expression before 'for'
     for (int i=0;i<fac[v[u] ].size();i++)
     ^
0_0_17638565_8700.cpp:60:5: error: expected ')' before 'for'