Compilare: main.cpp: In function 'void bk(int)': main.cpp:21:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for(int i = 0; i<lin.size(); i++) | ~^~~~~~~~~~~ main.cpp:43:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 43 | for(int i = r; i<sumcol.size(); i++) | ~^~~~~~~~~~~~~~ main.cpp:50:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | for(int i = 0; i<lin.size(); i++) | ~^~~~~~~~~~~