Compilare: main.cpp: In function 'int main()': main.cpp:35:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0 ; i < prev[(int)(last-'a')].size() ; i++ ) ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:37:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (i < prev[(int)(first-'a')].size()) { ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:50:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (prev[i].size() > maxim ) { ~~~~~~~~~~~~~~~^~~~~~~ main.cpp:56:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0 ; i < prev[p].size() ; i++) ~~^~~~~~~~~~~~~~~~ main.cpp:17:7: warning: variable 'n' set but not used [-Wunused-but-set-variable] int n, maxim, p, i, cuvinte ; ^