Eroare de compilare: main.cpp: In function 'void readEdges()': main.cpp:36:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for(int j = 0; j < a[i].size(); j++) { | ~~^~~~~~~~~~~~~ main.cpp:38:31: error: call of overloaded 'abs(std::__cxx11::basic_string<char>::size_type)' is ambiguous 38 | int node = abs(j - (a[i].size() - j - 1)); | ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from /usr/include/c++/12.2.1/bits/std_abs.h:38, from /usr/include/c++/12.2.1/cmath:47, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:41, from main.cpp:1: /usr/include/stdlib.h:861:12: note: candidate: 'int abs(int)' 861 | extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur; | ^~~ /usr/include/c++/12.2.1/bits/std_abs.h:79:3: note: candidate: 'constexpr long double std::abs(long double)' 79 | abs(long double __x) | ^~~ /usr/include/c++/12.2.1/bits/std_abs.h:75:3: note: candidate: 'constexpr float std::abs(float)' 75 | abs(float __x) | ^~~ /usr/include/c++/12.2.1/bits/std_abs.h:71:3: note: candidate: 'constexpr double std::abs(double)' 71 | abs(double __x) | ^~~ /usr/include/c++/12.2.1/bits/std_abs.h:61:3: note: candidate: 'long long int std::abs(long long int)' 61 | abs(long long __x) { return __builtin_llabs (__x); } | ^~~ /usr/include/c++/12.2.1/bits/std_abs.h:56:3: note: candidate: 'long int std::abs(long int)' 56 | abs(long __i) { return __builtin_labs(__i); } | ^~~ main.cpp:39:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | if(dist[node] > a[i].size() && s.find({dist[node], node}) != s.end()) | ~~~~~~~~~~~^~~~~~~~~~~~~ main.cpp: In function 'void dijkstra()': main.cpp:56:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | if(dist[next] > node.d + a[i].size()) { | ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~ Non zero exit status: 1