Borderou de evaluare (job #634383)

Eroare de compilare: main.cpp:6:9: error: 'int y1' redeclared as different kind of entity 6 | int x1, y1, x2, y2; | ^~ In file included from /usr/include/features.h:473, from /usr/lib/gcc/i686-pc-linux-gnu/11.2.0/include/g++-v11/i686-pc-linux-gnu/bits/os_defines.h:39, from /usr/lib/gcc/i686-pc-linux-gnu/11.2.0/include/g++-v11/i686-pc-linux-gnu/bits/c++config.h:586, from /usr/lib/gcc/i686-pc-linux-gnu/11.2.0/include/g++-v11/cassert:43, from /usr/lib/gcc/i686-pc-linux-gnu/11.2.0/include/g++-v11/i686-pc-linux-gnu/bits/stdc++.h:33, from main.cpp:1: /usr/include/bits/mathcalls.h:224:1: note: previous declaration 'double y1(double)' 224 | __MATHCALL (y1,, (_Mdouble_)); | ^~~~~~~~~~ main.cpp:21:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] 21 | main () | ^~~~ main.cpp: In function 'int main()': main.cpp:24:14: error: no match for 'operator>>' (operand types are 'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} and 'double(double) noexcept' {aka 'double(double)'}) 24 | in >> x1 >> y1 >> x2 >> y2; | ~~~~~~~~ ^~ ~~ | | | | | double(double) noexcept {aka double(double)} | std::basic_istream<char>::__istream_type {aka std::basic_istream<char>} In file included from /usr/lib/gcc/i686-pc-linux-gnu/11.2.0/include/g++-v11/sstream:38, from /usr/lib/gcc/i686-pc-linux-gnu/11.2.0/include/g++-v11/complex:45, from /usr/lib/gcc/i686-pc-linux-gnu/11.2.0/include/g++-v11/ccomplex:39, from /usr/lib/gcc/i686-pc-linux-gnu/11.2.0/include/g++-v11/i686-pc-linux-gnu/bits/stdc++.h:54, from main.cpp:1: /usr/lib/gcc/i686-pc-linux-gnu/11.2.0/include/g++-v11/istream:120:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__istream_type& (*)(std::basic_istream<_CharT, _Traits>::__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match) 120 | operator>>(__istream_type& (*__pf)(__istream_type&)) | ^~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/11.2.0/include/g++-v11/istream:120:7: note: conversion of argument 1 would be ill-formed: main.cpp:24:17: error: invalid conversion from 'double (*)(double) noexcept' {aka 'double (*)(double)'} to 'std::basic_istream<char>::__istream_type& (*)(std::basic_istream<char>::__istream_type&)' {aka 'std::basic_istream<char>& (*)(std::basic_istream<char>&)'} [-fpermissive] 24 | in >> x1 >> y1 >> x2 >> y2; | ^~ | | | double (*)(double) noexcept {aka double (*)(double)} In file included from /usr/lib/gcc/i686-pc-linux-gnu/11.2.0/include/g++-v11/sstream:38, from /usr/lib/gcc/i686-pc-linux-gnu/11.2.0/include/g++-v11/complex:45, from /usr/lib/gcc/i686-pc-linux-gnu/11.2.0/include/g++-v11/ccomplex:39, from /usr/lib/gcc/i686-pc-linux-gnu/11.2.0/include/g++-v11/i686-pc-linux-gnu/bits/stdc++.h:54, from main.cpp:1: /usr/lib/gcc/i686-pc-linux-gnu/11.2.0/include/g++-v11/istream:124:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__ios_type& (*)(std::basic_istream<_CharT, _Traits>::__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>; std::basic_istream<_CharT, _Traits>::__ios_type = std::basic_ios<char>]' (near match) 124 | operator>>(__ios_type& (*__pf)(__ios_type&)) | ^~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/11.2.0/include/g++-v11/istream:124:7: note: conversion of argument 1 would be ill-formed: main.cpp:24:17: error: invalid conversion from 'double (*)(double) noexcept' {aka 'double (*)(double)'} to 'std::basic_istream<char>::__ios_type& (*)(std::basic_istream<char>::__ios_type&)' {aka 'std::basic_ios<char>& (*)(std::basic_ios<char>&)'} [-fpermissive] 24 | in >> x1 >> y1 >> x2 >> y2; | ^~ | | | double (*)(double) noexcept {aka double (*)(double)}