Compilare: main.cpp: In function 'std::vector<long long int> reuniune(std::vector<long long int>, std::vector<long long int>)': main.cpp:19:17: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | while (i<v1.size() && j<v2.size()) | ~^~~~~~~~~~ main.cpp:19:32: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | while (i<v1.size() && j<v2.size()) | ~^~~~~~~~~~ main.cpp:38:17: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | while (i<v1.size()) | ~^~~~~~~~~~ main.cpp:43:17: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 43 | while (j<v2.size()) | ~^~~~~~~~~~ main.cpp: In function 'std::vector<long long int> intersectie(std::vector<long long int>, std::vector<long long int>)': main.cpp:54:17: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | while (i<v1.size() && j<v2.size()) | ~^~~~~~~~~~ main.cpp:54:32: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | while (i<v1.size() && j<v2.size()) | ~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:168:24: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 168 | for (int i=0; i<sum.size(); i++) g<<sum[i] << ' '; | ~^~~~~~~~~~~ main.cpp:169:24: warning: comparison of integer expressions of different signedness: 'long long int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 169 | for (int i=1; i<=strlen(s+1); i++) | ~^~~~~~~~~~~~~