View Compilation Error

0_0_23358588_436.cpp: In function 'int main()':
0_0_23358588_436.cpp:12:37: error: 'memset' was not declared in this scope
             memset(dis,0,sizeof(dis))
                                     ^
0_0_23358588_436.cpp:13:29: error: expected ';' before ')' token
             for(i=1;i<=a;i++)
                             ^
0_0_23358588_436.cpp:15:27: error: 'sort' was not declared in this scope
             sort(dis,dis+a);
                           ^
0_0_23358588_436.cpp:15:27: note: suggested alternative:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:62:0,
                 from 0_0_23358588_436.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:4705:5: note:   'std::sort'
     sort(_RandomAccessIterator __first, _RandomAccessIterator __last,
     ^
0_0_23358588_436.cpp:20:17: error: expected ';' before 'print'
                 print("%d\n",sum);
                 ^