0_0_37136569_22613.cpp:11:59: error: wrong number of template arguments (0, should be 1)
priority_queue<pair<int,int>,vector<pair<int,int>>,greater<>> q;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:48:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/locale_classes.h:40,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/ios_base.h:41,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:42,
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_37136569_22613.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_function.h:358:12: error: provided for 'template<class _Tp> struct std::greater'
struct greater : public binary_function<_Tp, _Tp, bool>
^
0_0_37136569_22613.cpp:11:60: error: template argument 3 is invalid
priority_queue<pair<int,int>,vector<pair<int,int>>,greater<>> q;
^
0_0_37136569_22613.cpp:11:64: error: invalid type in declaration before ';' token
priority_queue<pair<int,int>,vector<pair<int,int>>,greater<>> q;
^
0_0_37136569_22613.cpp: In function 'int main()':
0_0_37136569_22613.cpp:81:15: error: request for member 'push' in 'q', which is of non-class type 'int'
q.push({a[i].size(),i});
^
0_0_37136569_22613.cpp:83:17: error: request for member 'size' in 'q', which is of non-class type 'int'
while(q.size()!=1)
^
0_0_37136569_22613.cpp:85:24: error: request for member 'top' in 'q', which is of non-class type 'int'
int pos1=q.top().second;
^
0_0_37136569_22613.cpp:86:15: error: request for member 'pop' in 'q', which is of non-class type 'int'
q.pop();
^
0_0_37136569_22613.cpp:87:24: error: request for member 'top' in 'q', which is of non-class type 'int'
int pos2=q.top().second;
^
0_0_37136569_22613.cpp:88:15: error: request for member 'pop' in 'q', which is of non-class type 'int'
q.pop();
^
0_0_37136569_22613.cpp:98:15: error: request for member 'push' in 'q', which is of non-class type 'int'
q.push({a[pos1].size(),pos1});
^
0_0_37136569_22613.cpp:101:19: error: request for member 'top' in 'q', which is of non-class type 'int'
int pos=q.top().second;
^
0_0_37136569_22613.cpp:109:11: error: request for member 'pop' in 'q', which is of non-class type 'int'
q.pop();
^
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