Compilare: user.cpp: In function ‘int gaseste(char (*)[20], unsigned int, char*)’: user.cpp:18:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<nr; i++) ^ user.cpp: In function ‘int main()’: user.cpp:48:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<strlen(s)) ^ user.cpp:84:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<nr-1; i++) ^ user.cpp:95:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<nr; i++) ^