View Compilation Error

0_0_37818504_10619.cpp: In function 'void solve()':
0_0_37818504_10619.cpp:53:10: error: 'map' was not declared in this scope
      std:map<int,int> hs;
          ^
0_0_37818504_10619.cpp:53:10: note: suggested alternative:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:61:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:80,
                 from 0_0_37818504_10619.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_map.h:96:11: note:   'std::map'
     class map
           ^
0_0_37818504_10619.cpp:53:14: error: expected primary-expression before 'int'
      std:map<int,int> hs;
              ^
0_0_37818504_10619.cpp:56:9: error: 'hs' was not declared in this scope
      if(hs.count(base))
         ^
0_0_37818504_10619.cpp:58:6: error: 'hs' was not declared in this scope
      hs[base] = i;
      ^
0_0_37818504_10619.cpp:78:21: error: 'hs' was not declared in this scope
                 if (hs.count(vp) && hs[vp] <= fc[i].y)
                     ^