Compilare: main.cpp: In function 'int main()': main.cpp:54:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for( int i = 0; i < v.size(); ++i ) | ~~^~~~~~~~~~ main.cpp:55:25: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 55 | if( v[i].size() > maxim ) | ~~~~~~~~~~~~^~~~~~~ main.cpp:60:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for( int i = 0; i < v.size(); ++i ) | ~~^~~~~~~~~~ main.cpp:61:25: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 61 | if( v[i].size() == maxim ) | ~~~~~~~~~~~~^~~~~~~~ main.cpp:63:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 63 | for( int j = 0; j < v[i].size(); ++j ) | ~~^~~~~~~~~~~~~