hamburg.cpp:4:26: error: 'int y1 [200009]' redeclared as different kind of entity
4 | int x1[200009], y1[200009], x2[200009], y2[200009];
| ^
In file included from /usr/include/features.h:461,
from /usr/include/x86_64-linux-gnu/c++/10/bits/os_defines.h:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/c++config.h:518,
from /usr/include/c++/10/cassert:43,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
from hamburg.cpp:1:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:221:1: note: previous declaration 'double y1(double)'
221 | __MATHCALL (y1,, (_Mdouble_));
| ^~~~~~~~~~
hamburg.cpp: In function 'int main()':
hamburg.cpp:9:31: warning: pointer to a function used in arithmetic [-Wpointer-arith]
9 | scanf("%d %d", &x1[i], &y1[i]);
| ^
hamburg.cpp:9:14: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'double (*)(double) noexcept' [-Wformat=]
9 | scanf("%d %d", &x1[i], &y1[i]);
| ~^ ~~~~~~
| | |
| int* double (*)(double) noexcept
hamburg.cpp:14:24: warning: pointer to a function used in arithmetic [-Wpointer-arith]
14 | mxy1 = max(mxy1, y1[i]);
| ^
hamburg.cpp:14:25: error: no matching function for call to 'max(int&, double (&)(double) noexcept)'
14 | mxy1 = max(mxy1, y1[i]);
| ^
In file included from /usr/include/c++/10/bits/specfun.h:45,
from /usr/include/c++/10/cmath:1927,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
from hamburg.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:254:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
254 | max(const _Tp& __a, const _Tp& __b)
| ^~~
/usr/include/c++/10/bits/stl_algobase.h:254:5: note: template argument deduction/substitution failed:
hamburg.cpp:14:25: note: deduced conflicting types for parameter 'const _Tp' ('int' and 'double(double) noexcept')
14 | mxy1 = max(mxy1, y1[i]);
| ^
In file included from /usr/include/c++/10/bits/specfun.h:45,
from /usr/include/c++/10/cmath:1927,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
from hamburg.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:300:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
300 | max(const _Tp& __a, const _Tp& __b, _Compare __comp)
| ^~~
/usr/include/c++/10/bits/stl_algobase.h:300:5: note: template argument deduction/substitution failed:
hamburg.cpp:14:25: note: deduced conflicting types for parameter 'const _Tp' ('int' and 'double(double) noexcept')
14 | mxy1 = max(mxy1, y1[i]);
| ^
In file included from /usr/include/c++/10/algorithm:62,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from hamburg.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3480:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
3480 | max(initializer_list<_Tp> __l)
| ^~~
/usr/include/c++/10/bits/stl_algo.h:3480:5: note: template argument deduction/substitution failed:
hamburg.cpp:14:25: note: mismatched types 'std::initializer_list<_Tp>' and 'int'
14 | mxy1 = max(mxy1, y1[i]);
| ^
In file included from /usr/include/c++/10/algorithm:62,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from hamburg.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
3486 | max(initializer_list<_Tp> __l, _Compare __comp)
| ^~~
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: template argument deduction/substitution failed:
hamburg.cpp:14:25: note: mismatched types 'std::initializer_list<_Tp>' and 'int'
14 | mxy1 = max(mxy1, y1[i]);
| ^
hamburg.cpp:7:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
7 | scanf("%d %d", &n, &k);
| ~~~~~^~~~~~~~~~~~~~~~~
hamburg.cpp:9:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
9 | scanf("%d %d", &x1[i], &y1[i]);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
hamburg.cpp:10:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
10 | scanf("%d %d", &x2[i], &y2[i]);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~