Compilare: main.cpp: In function 'int main()': main.cpp:24:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int f = 0 ; f < a.size() ; f ++) ~~^~~~~~~~~~ main.cpp:59:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < aux.size() ; i ++) ~~^~~~~~~~~~~~ main.cpp:88:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int f = 0 ; f < aux.size() ; f ++) ~~^~~~~~~~~~~~ main.cpp:112:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int f = 0 ; f < aux.size() ; f ++) ~~^~~~~~~~~~~~ main.cpp:22:9: warning: unused variable 'rot' [-Wunused-variable] int rot = 0, patr = 0, operatii = 0 ; ^~~ main.cpp:22:18: warning: unused variable 'patr' [-Wunused-variable] int rot = 0, patr = 0, operatii = 0 ; ^~~~