Compilare: main.cpp: In function 'int mex(std::vector<int>)': main.cpp:22:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | for(int i = 0; i < aux.size(); i++) | ~~^~~~~~~~~~~~ main.cpp: In function 'std::vector<int> solve(int, int)': main.cpp:51:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 51 | for(int j = 0; j < edges.size(); j++) { | ~~^~~~~~~~~~~~~~ In file included from /usr/include/c++/10/cassert:44, from main.cpp:3: main.cpp: In function 'int main()': main.cpp:104:23: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 104 | assert(edges.size() == m); | ~~~~~~~~~~~~~^~~~ main.cpp:109:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 109 | for(int i = 0; i < perm.size(); i++) { | ~~^~~~~~~~~~~~~ main.cpp:112:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 112 | for(int j = 0; j < g2[node].size(); j++) | ~~^~~~~~~~~~~~~~~~~ main.cpp:117:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 117 | for(int i = 0; i < perm2.size(); i++) { | ~~^~~~~~~~~~~~~~ main.cpp:120:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 120 | for(int j = 0; j < g2[node].size(); j++) | ~~^~~~~~~~~~~~~~~~~