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View Compilation Error

0_0_25925693_13385.cpp: In function 'int main()':
0_0_25925693_13385.cpp:24:3: error: reference to 'left' is ambiguous
   left=0;
   ^
0_0_25925693_13385.cpp:3:23: note: candidates are: int left
 int t,n,x[300005],mid,left,right,sum,flag;
                       ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:42:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/sstream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:45,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ccomplex:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:52,
                 from 0_0_25925693_13385.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/ios_base.h:916:3: note:                 std::ios_base& std::left(std::ios_base&)
   left(ios_base& __base)
   ^
0_0_25925693_13385.cpp:25:3: error: reference to 'right' is ambiguous
   right=sum;
   ^
0_0_25925693_13385.cpp:3:28: note: candidates are: int right
 int t,n,x[300005],mid,left,right,sum,flag;
                            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:42:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/sstream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:45,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ccomplex:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:52,
                 from 0_0_25925693_13385.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/ios_base.h:924:3: note:                 std::ios_base& std::right(std::ios_base&)
   right(ios_base& __base)
   ^
0_0_25925693_13385.cpp:26:9: error: reference to 'right' is ambiguous
   while(right>left)
         ^
0_0_25925693_13385.cpp:3:28: note: candidates are: int right
 int t,n,x[300005],mid,left,right,sum,flag;
                            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:42:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/sstream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:45,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ccomplex:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:52,
                 from 0_0_25925693_13385.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/ios_base.h:924:3: note:                 std::ios_base& std::right(std::ios_base&)
   right(ios_base& __base)
   ^
0_0_25925693_13385.cpp:26:15: error: reference to 'left' is ambiguous
   while(right>left)
               ^
0_0_25925693_13385.cpp:3:23: note: candidates are: int left
 int t,n,x[300005],mid,left,right,sum,flag;
                       ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:42:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/sstream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:45,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ccomplex:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:52,
                 from 0_0_25925693_13385.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/ios_base.h:916:3: note:                 std::ios_base& std::left(std::ios_base&)
   left(ios_base& __base)
   ^
0_0_25925693_13385.cpp:28:9: error: reference to 'left' is ambiguous
    mid=(left+right+1)/2;
         ^
0_0_25925693_13385.cpp:3:23: note: candidates are: int left
 int t,n,x[300005],mid,left,right,sum,flag;
                       ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:42:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/sstream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:45,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ccomplex:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:52,
                 from 0_0_25925693_13385.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/ios_base.h:916:3: note:                 std::ios_base& std::left(std::ios_base&)
   left(ios_base& __base)
   ^
0_0_25925693_13385.cpp:28:14: error: reference to 'right' is ambiguous
    mid=(left+right+1)/2;
              ^
0_0_25925693_13385.cpp:3:28: note: candidates are: int right
 int t,n,x[300005],mid,left,right,sum,flag;
                            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:42:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/sstream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:45,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ccomplex:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:52,
                 from 0_0_25925693_13385.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/ios_base.h:924:3: note:                 std::ios_base& std::right(std::ios_base&)
   right(ios_base& __base)
   ^
0_0_25925693_13385.cpp:38:5: error: reference to 'right' is ambiguous
     right=mid-1;
     ^
0_0_25925693_13385.cpp:3:28: note: candidates are: int right
 int t,n,x[300005],mid,left,right,sum,flag;
                            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:42:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/sstream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:45,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ccomplex:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:52,
                 from 0_0_25925693_13385.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/ios_base.h:924:3: note:                 std::ios_base& std::right(std::ios_base&)
   right(ios_base& __base)
   ^
0_0_25925693_13385.cpp:40:5: error: reference to 'left' is ambiguous
     left=mid; 
     ^
0_0_25925693_13385.cpp:3:23: note: candidates are: int left
 int t,n,x[300005],mid,left,right,sum,flag;
                       ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:42:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/sstream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:45,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ccomplex:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:52,
                 from 0_0_25925693_13385.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/ios_base.h:916:3: note:                 std::ios_base& std::left(std::ios_base&)
   left(ios_base& __base)
   ^
0_0_25925693_13385.cpp:42:19: error: reference to 'left' is ambiguous
   printf("%lld\n",left); 
                   ^
0_0_25925693_13385.cpp:3:23: note: candidates are: int left
 int t,n,x[300005],mid,left,right,sum,flag;
                       ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:42:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/sstream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:45,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ccomplex:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:52,
                 from 0_0_25925693_13385.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/ios_base.h:916:3: note:                 std::ios_base& std::left(std::ios_base&)
   left(ios_base& __base)
   ^


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