Compilare: main.cpp: In function 'int main()': main.cpp:59:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 59 | for(int i=0;i<ans[1].size();i++) | ~^~~~~~~~~~~~~~ main.cpp:72:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 72 | for(int j=0;j<ans1[i].size();j++) | ~^~~~~~~~~~~~~~~ main.cpp:80:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | for(int j=0;j<ans[i].size();j++) | ~^~~~~~~~~~~~~~