Compilare: main.cpp: In function 'void euler()': main.cpp:36:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | while(ultim[x] < v[x].size() && ind == -1){ | ~~~~~~~~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:75:21: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 75 | if(ciclu.size() != m + 1 || ciclu[0] != ciclu[ciclu.size() - 2]){ | ~~~~~~~~~~~~~^~~~~~~~ main.cpp:82:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 82 | for(int i = 0; i < ciclu.size() - 1; i++) | ~~^~~~~~~~~~~~~~~~~~