Compilare: main.cpp: In function 'int read()': main.cpp:80:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | while (poz < buff.size() and buff[poz] >= '0' and buff[poz] <= '9') | ~~~~^~~~~~~~~~~~~ main.cpp: In function 'std::vector<int> join(std::vector<int>, std::vector<int>)': main.cpp:94:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 94 | while (i1 < a.size() and i2 < b.size()) | ~~~^~~~~~~~~~ main.cpp:94:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 94 | while (i1 < a.size() and i2 < b.size()) | ~~~^~~~~~~~~~ main.cpp:113:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 113 | while (i1 < a.size()) | ~~~^~~~~~~~~~ main.cpp:117:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 117 | while (i2 < b.size()) | ~~~^~~~~~~~~~ main.cpp: In function 'std::vector<int> inter(std::vector<int>, std::vector<int>)': main.cpp:133:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 133 | while (i1 < a.size() and i2 < b.size()) | ~~~^~~~~~~~~~ main.cpp:133:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 133 | while (i1 < a.size() and i2 < b.size()) | ~~~^~~~~~~~~~