0_0_29030612_26018.cpp:99:9: error: conflicting declaration 'int a'
int s,t,a,b;
^
0_0_29030612_26018.cpp:11:5: note: previous declaration as 'int a [100007]'
int a[maxn];
^
0_0_29030612_26018.cpp: In function 'int main()':
0_0_29030612_26018.cpp:133:19: error: cannot bind 'std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}' lvalue to 'std::basic_istream<char>&&'
cin>>s>>t>>a>>b;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/sstream:38:0,
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_29030612_26018.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:872:5: note: initializing argument 1 of 'std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&) [with _CharT = char; _Traits = std::char_traits<char>; _Tp = int [100007]]'
operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x)
^
0_0_29030612_26018.cpp:134:39: error: invalid conversion from 'int*' to 'int' [-fpermissive]
cout<<querysum(s,t,a,b,1,n)<<" ";
^
0_0_29030612_26018.cpp:88:4: note: initializing argument 3 of 'long long int querysum(int, int, int, int, int, int)'
ll querysum(int x,int y,int a,int b,int L,int R){
^
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