Compilare: main.cpp: In function 'int main()': main.cpp:75:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(sume.size() <= k && *it < *sume.begin()) ~~~~~~~~~~~~^~~~ main.cpp:81:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(sume.size() > k) ~~~~~~~~~~~~^~~ main.cpp:88:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(sume.size() == k) ~~~~~~~~~~~~^~~~ main.cpp:99:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(sume.size() <= k && *it < *sume.begin()) ~~~~~~~~~~~~^~~~ main.cpp:105:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(sume.size() > k) ~~~~~~~~~~~~^~~ main.cpp:112:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(sume.size() == k) ~~~~~~~~~~~~^~~~ main.cpp:123:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(sume.size() <= k && *it < *sume.begin()) ~~~~~~~~~~~~^~~~ main.cpp:129:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(sume.size() > k) ~~~~~~~~~~~~^~~ main.cpp:136:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(sume.size() == k) ~~~~~~~~~~~~^~~~