Compilare: main.cpp: In function 'int main()': main.cpp:19:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | for (i=0; i<poz[nr].size (); i++) | ~^~~~~~~~~~~~~~~~ main.cpp:21:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for (j=i; j<poz[nr].size (); j++) | ~^~~~~~~~~~~~~~~~ main.cpp:32:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | if (j==poz[nr].size ()-1) | ~^~~~~~~~~~~~~~~~~~~