Compilare: main.cpp: In function 'int main()': main.cpp:113:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 113 | for(int i=0;i<lin1.size();i++) | ~^~~~~~~~~~~~ main.cpp:117:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 117 | for(int i=lin1.size();i<col1.size();i++) | ~^~~~~~~~~~~~ main.cpp:124:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 124 | for(int i=0;i<col1.size();i++) | ~^~~~~~~~~~~~ main.cpp:128:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 128 | for(int i=col1.size();i<lin1.size();i++) | ~^~~~~~~~~~~~ main.cpp:139:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 139 | for(int i=0;i<lin2.size();i++) | ~^~~~~~~~~~~~ main.cpp:143:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 143 | for(int i=lin2.size();i<col2.size();i++) | ~^~~~~~~~~~~~ main.cpp:150:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 150 | for(int i=0;i<col2.size();i++) | ~^~~~~~~~~~~~ main.cpp:154:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 154 | for(int i=col2.size();i<lin2.size();i++) | ~^~~~~~~~~~~~