Eroare de compilare: main.cpp: In member function 'void MinAndPath::print()': main.cpp:51:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 51 | for (int i = 1; i < path.size(); ++i) { | ~~^~~~~~~~~~~~~ main.cpp: At global scope: main.cpp:92:50: error: 'cell' has incomplete type 92 | void addNextCell(reference_wrapper<Cell> cell) { | ~~~~~~~~~~~~~~~~~~~~~~~~^~~~ In file included from /usr/include/c++/10/bits/move.h:57, from /usr/include/c++/10/bits/nested_exception.h:40, from /usr/include/c++/10/exception:148, from /usr/include/c++/10/ios:39, from /usr/include/c++/10/istream:38, from /usr/include/c++/10/fstream:38, from main.cpp:1: /usr/include/c++/10/type_traits:2160:11: note: declaration of 'class std::reference_wrapper<Cell>' 2160 | class reference_wrapper; | ^~~~~~~~~~~~~~~~~ main.cpp: In member function 'std::string Cell::toString()': main.cpp:99:30: error: conversion from 'std::reference_wrapper<Cell>' to non-scalar type 'Cell' requested 99 | for (Cell cell : nextCells) { | ^~~~~~~~~ main.cpp: In function 'MinAndPath computeMinimumSum(Cell&)': main.cpp:218:38: error: conversion from '__gnu_cxx::__alloc_traits<std::allocator<std::reference_wrapper<Cell> >, std::reference_wrapper<Cell> >::value_type' {aka 'std::reference_wrapper<Cell>'} to non-scalar type 'Cell' requested 218 | Cell firstCell = nextCells.at(0); | ~~~~~~~~~~~~^~~ main.cpp:222:29: error: conversion from 'std::reference_wrapper<Cell>' to non-scalar type 'Cell' requested 222 | for (Cell oneCell : nextCells) { | ^~~~~~~~~ main.cpp: In function 'Cell* linkCells(Level*)': main.cpp:262:42: error: cannot convert 'Cell' to 'std::reference_wrapper<Cell>' 262 | aCell -> addNextCell(*under); | ^~~~~~ | | | Cell main.cpp:92:50: note: initializing argument 1 of 'void Cell::addNextCell(std::reference_wrapper<Cell>)' 92 | void addNextCell(reference_wrapper<Cell> cell) { | ~~~~~~~~~~~~~~~~~~~~~~~~^~~~ main.cpp:263:42: error: cannot convert 'Cell' to 'std::reference_wrapper<Cell>' 263 | aCell -> addNextCell(*east); | ^~~~~ | | | Cell main.cpp:92:50: note: initializing argument 1 of 'void Cell::addNextCell(std::reference_wrapper<Cell>)' 92 | void addNextCell(reference_wrapper<Cell> cell) { | ~~~~~~~~~~~~~~~~~~~~~~~~^~~~ main.cpp:264:42: error: cannot convert 'Cell' to 'std::reference_wrapper<Cell>' 264 | aCell -> addNextCell(*south); | ^~~~~~ | | Non zero exit status: 1