Compilare: main.cpp: In function 'int main()': main.cpp:48:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < w.size(); i++)//calculul pentru o singura echipa ~~^~~~~~~~~~ main.cpp:50:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 2; j <= w.size(); j++) ~~^~~~~~~~~~~ main.cpp:51:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = j - 1; i < w.size(); i++) ~~^~~~~~~~~~ main.cpp:54:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i <= w.size(); i++) ~~^~~~~~~~~~~ main.cpp:55:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i <= k && k - i < sum.size()) ~~~~~~^~~~~~~~~~~~