Compilare: main.cpp: In function 'int main()': main.cpp:49:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long unsigned int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | for (int i = 0; i < s.size(); i++) | ~~^~~~~~~~~~ main.cpp:54:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long unsigned int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for (int i = 0; i < s.size(); i++) | ~~^~~~~~~~~~ main.cpp:89:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long unsigned int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 89 | for (int i = 0; i < s.size(); i++) | ~~^~~~~~~~~~ main.cpp:94:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long unsigned int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 94 | for (int i = 0; i < s.size(); i++) | ~~^~~~~~~~~~