Compilare: main.cpp: In function 'void ReadData()': main.cpp:53:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for (int i = 0; i < s.size(); i++) { | ~~^~~~~~~~~~ main.cpp: In function 'void Solve()': main.cpp:131:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 131 | for (int i = 0; i < s.size(); i++) { | ~~^~~~~~~~~~ main.cpp:138:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 138 | for (int i = 0; i < s.size(); i++) { | ~~^~~~~~~~~~ main.cpp:157:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 157 | for (int i = 0; i < s.size(); i++) { | ~~^~~~~~~~~~ main.cpp:161:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 161 | for (int i = 0; i < s.size(); i++) { | ~~^~~~~~~~~~