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View Compilation Error

0_0_20317839_15718.cpp: In function 'void Upfather(int, int, int)':
0_0_20317839_15718.cpp:29:23: error: reference to 'hash' is ambiguous
     if(mark[n])sum[n]=hash[right+1]-hash[left];//表示该区间整个线段长度可以作为底边   
                       ^
0_0_20317839_15718.cpp:14:8: note: candidates are: double hash [210]
 double hash[MAX];//对x进行离散化,否则x为浮点数且很大无法进行线段树   
        ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from 0_0_20317839_15718.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_20317839_15718.cpp:29:37: error: reference to 'hash' is ambiguous
     if(mark[n])sum[n]=hash[right+1]-hash[left];//表示该区间整个线段长度可以作为底边   
                                     ^
0_0_20317839_15718.cpp:14:8: note: candidates are: double hash [210]
 double hash[MAX];//对x进行离散化,否则x为浮点数且很大无法进行线段树   
        ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from 0_0_20317839_15718.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_20317839_15718.cpp: In function 'int main()':
0_0_20317839_15718.cpp:60:11: error: 'cin' was not declared in this scope
     while(cin>>n,n){  
           ^
0_0_20317839_15718.cpp:64:13: error: reference to 'hash' is ambiguous
             hash[k]=x1;  
             ^
0_0_20317839_15718.cpp:14:8: note: candidates are: double hash [210]
 double hash[MAX];//对x进行离散化,否则x为浮点数且很大无法进行线段树   
        ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from 0_0_20317839_15718.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_20317839_15718.cpp:66:13: error: reference to 'hash' is ambiguous
             hash[k]=x2;  
             ^
0_0_20317839_15718.cpp:14:8: note: candidates are: double hash [210]
 double hash[MAX];//对x进行离散化,否则x为浮点数且很大无法进行线段树   
        ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from 0_0_20317839_15718.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_20317839_15718.cpp:69:14: error: reference to 'hash' is ambiguous
         sort(hash,hash+k);  
              ^
0_0_20317839_15718.cpp:14:8: note: candidates are: double hash [210]
 double hash[MAX];//对x进行离散化,否则x为浮点数且很大无法进行线段树   
        ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from 0_0_20317839_15718.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_20317839_15718.cpp:69:19: error: reference to 'hash' is ambiguous
         sort(hash,hash+k);  
                   ^
0_0_20317839_15718.cpp:14:8: note: candidates are: double hash [210]
 double hash[MAX];//对x进行离散化,否则x为浮点数且很大无法进行线段树   
        ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from 0_0_20317839_15718.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_20317839_15718.cpp:73:16: error: reference to 'hash' is ambiguous
             if(hash[i] != hash[i-1])hash[m++]=hash[i];  
                ^
0_0_20317839_15718.cpp:14:8: note: candidates are: double hash [210]
 double hash[MAX];//对x进行离散化,否则x为浮点数且很大无法进行线段树   
        ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from 0_0_20317839_15718.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_20317839_15718.cpp:73:27: error: reference to 'hash' is ambiguous
             if(hash[i] != hash[i-1])hash[m++]=hash[i];  
                           ^
0_0_20317839_15718.cpp:14:8: note: candidates are: double hash [210]
 double hash[MAX];//对x进行离散化,否则x为浮点数且很大无法进行线段树   
        ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from 0_0_20317839_15718.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_20317839_15718.cpp:73:37: error: reference to 'hash' is ambiguous
             if(hash[i] != hash[i-1])hash[m++]=hash[i];  
                                     ^
0_0_20317839_15718.cpp:14:8: note: candidates are: double hash [210]
 double hash[MAX];//对x进行离散化,否则x为浮点数且很大无法进行线段树   
        ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from 0_0_20317839_15718.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_20317839_15718.cpp:73:47: error: reference to 'hash' is ambiguous
             if(hash[i] != hash[i-1])hash[m++]=hash[i];  
                                               ^
0_0_20317839_15718.cpp:14:8: note: candidates are: double hash [210]
 double hash[MAX];//对x进行离散化,否则x为浮点数且很大无法进行线段树   
        ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from 0_0_20317839_15718.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_20317839_15718.cpp:78:33: error: reference to 'hash' is ambiguous
             int L=search(s[i].l,hash,m);  
                                 ^
0_0_20317839_15718.cpp:14:8: note: candidates are: double hash [210]
 double hash[MAX];//对x进行离散化,否则x为浮点数且很大无法进行线段树   
        ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from 0_0_20317839_15718.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_20317839_15718.cpp:79:33: error: reference to 'hash' is ambiguous
             int R=search(s[i].r,hash,m)-1;  
                                 ^
0_0_20317839_15718.cpp:14:8: note: candidates are: double hash [210]
 double hash[MAX];//对x进行离散化,否则x为浮点数且很大无法进行线段树   
        ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from 0_0_20317839_15718.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^


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