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View Compilation Error

0_0_20411898_27445.cpp:16:50: error: 'int log [200005]' redeclared as different kind of symbol
 int n,m,s[N],len[N],l=0,h[P][N],sa[N],rk[N],log[N],sq[N],pos[N];
                                                  ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/cmath:44:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/random:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:66,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:62,
                 from 0_0_20411898_27445.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/math.h:149:18: note: previous declaration 'double log(double)'
   double __cdecl log(double _X);
                  ^
0_0_20411898_27445.cpp: In function 'void solve(int, int)':
0_0_20411898_27445.cpp:47:7: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
  log[0]=-1;
       ^
0_0_20411898_27445.cpp:48:25: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
  for (i=1;i<N;i++) log[i]=log[i>>1]+1;
                         ^
0_0_20411898_27445.cpp:48:35: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
  for (i=1;i<N;i++) log[i]=log[i>>1]+1;
                                   ^
0_0_20411898_27445.cpp: In function 'int lcp(int, int)':
0_0_20411898_27445.cpp:55:17: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
  int l=log[b-a+1];
                 ^


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