Eroare de compilare: main.cpp: In function 'std::vector<int> bfs(std::vector<std::vector<int> >&, int)': main.cpp:24:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for(int i=0; i<lista[node].size(); i++) | ~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs(std::vector<std::vector<int> >&, int, std::vector<bool>&)': main.cpp:39:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(int i=0; i<lista[start].size(); i++) | ~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'std::vector<int> kahn(std::vector<std::vector<int> >&, std::vector<int>&)': main.cpp:60:5: error: 'stack' was not declared in this scope 60 | stack<int> s; | ^~~~~ main.cpp:5:1: note: 'std::stack' is defined in header '<stack>'; did you forget to '#include <stack>'? 4 | #include <algorithm> +++ |+#include <stack> 5 | using namespace std; main.cpp:60:11: error: expected primary-expression before 'int' 60 | stack<int> s; | ^~~ main.cpp:62:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | for (int i = 1; i < grade_in.size(); i++) { | ~~^~~~~~~~~~~~~~~~~ main.cpp:64:15: error: request for member 'push' in 's', which is of non-class type 'int' 64 | s.push(i); | ^~~~ main.cpp:68:15: error: request for member 'empty' in 's', which is of non-class type 'int' 68 | while (!s.empty()) { | ^~~~~ main.cpp:69:25: error: request for member 'top' in 's', which is of non-class type 'int' 69 | int current = s.top(); | ^~~ main.cpp:70:11: error: request for member 'pop' in 's', which is of non-class type 'int' 70 | s.pop(); | ^~~ main.cpp:72:15: error: expected primary-expression before 'int' 72 | stack<int> aux; | ^~~ main.cpp:77:17: error: 'aux' was not declared in this scope 77 | aux.push(node); | ^~~ main.cpp:81:17: error: 'aux' was not declared in this scope 81 | while (!aux.empty()) { | ^~~ main.cpp:82:15: error: request for member 'push' in 's', which is of non-class type 'int' 82 | s.push(aux.top()); | ^~~~ Non zero exit status: 1