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View Compilation Error

0_0_39580916_6191.cpp: In function 'int main()':
0_0_39580916_6191.cpp:18:25: error: reference to 'hash' is ambiguous
   18 |                         hash[i]=hash[i-1]*p+a[i]-'a';
      |                         ^~~~
In file included from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/string_view:42,
                 from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/basic_string.h:47,
                 from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/string:54,
                 from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bitset:52,
                 from .\stdc++.h:52:
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/functional_hash.h:59:12: note: candidates are: 'template<class _Tp> struct std::hash'
   59 |     struct hash;
      |            ^~~~
0_0_39580916_6191.cpp:6:13: note:                 'long long unsigned int hash [100010]'
    6 | unsigned ll hash[100010];
      |             ^~~~
0_0_39580916_6191.cpp:18:33: error: reference to 'hash' is ambiguous
   18 |                         hash[i]=hash[i-1]*p+a[i]-'a';
      |                                 ^~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/functional_hash.h:59:12: note: candidates are: 'template<class _Tp> struct std::hash'
   59 |     struct hash;
      |            ^~~~
0_0_39580916_6191.cpp:6:13: note:                 'long long unsigned int hash [100010]'
    6 | unsigned ll hash[100010];
      |             ^~~~
0_0_39580916_6191.cpp:21:36: error: reference to 'hash' is ambiguous
   21 |                                 if(hash[i]-hash[i-m]*pi==res)f[i]=(ll)(f[i]+f[i-m])%mod;
      |                                    ^~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/functional_hash.h:59:12: note: candidates are: 'template<class _Tp> struct std::hash'
   59 |     struct hash;
      |            ^~~~
0_0_39580916_6191.cpp:6:13: note:                 'long long unsigned int hash [100010]'
    6 | unsigned ll hash[100010];
      |             ^~~~
0_0_39580916_6191.cpp:21:44: error: reference to 'hash' is ambiguous
   21 |                                 if(hash[i]-hash[i-m]*pi==res)f[i]=(ll)(f[i]+f[i-m])%mod;
      |                                            ^~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/functional_hash.h:59:12: note: candidates are: 'template<class _Tp> struct std::hash'
   59 |     struct hash;
      |            ^~~~
0_0_39580916_6191.cpp:6:13: note:                 'long long unsigned int hash [100010]'
    6 | unsigned ll hash[100010];
      |             ^~~~


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