Compilare: main.cpp: In function 'void adauga(int)': main.cpp:20:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < h[p].size(); i++){ ~~^~~~~~~~~~~~~ main.cpp:26:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i == h[p].size() ){ ~~^~~~~~~~~~~~~~ main.cpp:13:9: warning: variable 'k' set but not used [-Wunused-but-set-variable] int k, p, i; ^ main.cpp: In function 'int calc(int)': main.cpp:38:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < h[p].size(); i++){ ~~^~~~~~~~~~~~~ main.cpp:43:1: warning: control reaches end of non-void function [-Wreturn-type] } ^