Compilare: main.cpp: In function 'void erase(int, int)': main.cpp:13:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 13 | for(int k = poz; k < v[nr % prim].size() - 1; k++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:31:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for(int j = 0; j < v[ x % prim ].size(); j++) { | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:38:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | for(int j = 0; j < v[x%prim].size() && !ok; j++) | ~~^~~~~~~~~~~~~~~~~~