Compilare: main.cpp: In function 'int main()': main.cpp:24:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v.size(); i++) ~~^~~~~~~~~~ main.cpp:26:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i; j < v.size(); j++) ~~^~~~~~~~~~ main.cpp:28:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = j; k < v.size(); k++) ~~^~~~~~~~~~