Compilare: main.cpp: In function 'int main()': main.cpp:19:20: warning: comparison of integer expressions of different signedness: 'std::deque<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 19 | if(d.size()> u){ | ~~~~~~~~^~~ main.cpp:24:21: warning: comparison of integer expressions of different signedness: 'std::deque<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 24 | if(d.size() >l && d.front()<0 ){ | ~~~~~~~~~^~ main.cpp:28:20: warning: comparison of integer expressions of different signedness: 'std::deque<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 28 | if(d.size()>=l && d.size()<=u){ | ~~~~~~~~^~~ main.cpp:28:35: warning: comparison of integer expressions of different signedness: 'std::deque<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 28 | if(d.size()>=l && d.size()<=u){ | ~~~~~~~~^~~ main.cpp:38:20: warning: comparison of integer expressions of different signedness: 'std::deque<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 38 | if(d.size()> u){ | ~~~~~~~~^~~ main.cpp:43:21: warning: comparison of integer expressions of different signedness: 'std::deque<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 43 | if(d.size() >l && d.front()<0 ){ | ~~~~~~~~~^~ main.cpp:47:20: warning: comparison of integer expressions of different signedness: 'std::deque<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 47 | if(d.size()>=l && d.size()<=u){ | ~~~~~~~~^~~ main.cpp:47:35: warning: comparison of integer expressions of different signedness: 'std::deque<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 47 | if(d.size()>=l && d.size()<=u){ | ~~~~~~~~^~~