Eroare de compilare: main.cpp:12:31: error: 'int y1 [205]' redeclared as different kind of entity 12 | int P, N, M, x1[NMAX], y1[NMAX], x2[NMAX], y2[NMAX], nx[NMAX], ny[NMAX], sx, sy, mat[NMAX][NMAX], total; | ^ 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:522, from /usr/include/c++/10/cassert:43, from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33, from main.cpp:1: /usr/include/x86_64-linux-gnu/bits/mathcalls.h:221:1: note: previous declaration 'double y1(double)' 221 | __MATHCALL (y1,, (_Mdouble_)); | ^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:29:25: warning: pointer to a function used in arithmetic [-Wpointer-arith] 29 | fin>>x1[i]>>y1[i]>>x2[i]>>y2[i]; | ^ main.cpp:29:19: error: no match for 'operator>>' (operand types are 'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} and 'double(double) throw ()' {aka 'double(double)'}) 29 | fin>>x1[i]>>y1[i]>>x2[i]>>y2[i]; | ~~~~~~~~~~^~~~~~~ | | | | | double(double) throw () {aka double(double)} | std::basic_istream<char>::__istream_type {aka std::basic_istream<char>} In file included from /usr/include/c++/10/sstream:38, from /usr/include/c++/10/complex:45, from /usr/include/c++/10/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54, from main.cpp:1: /usr/include/c++/10/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/include/c++/10/istream:120:7: note: conversion of argument 1 would be ill-formed: main.cpp:29:25: error: invalid conversion from 'double (*)(double) throw ()' {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] 29 | fin>>x1[i]>>y1[i]>>x2[i]>>y2[i]; | ~~~~^ | | | double (*)(double) throw () {aka double (*)(double)} In file included from /usr/include/c++/10/sstream:38, from /usr/include/c++/10/complex:45, from /usr/include/c++/10/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54, from main.cpp:1: /usr/include/c++/10/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/include/c++/10/istream:124:7: note: conversion of argument 1 would be ill-formed: main.cpp:29:25: error: invalid conversion from 'double (*)(double) throw ()' {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] 29 | fin>>x1[i]>>y1[i]>>x2[i]>>y2[i]; | ~~~~^ | | | double (*)(double) throw () {aka double (*)(double)} Non zero exit status: 1