Compilare: main.cpp: In function 'int main()': main.cpp:23:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] {fin>>A[i]; if(strlen(A[i]) < min1) min1=strlen(A[i]); } ~~~~~~~~~~~~~^~~~~~ main.cpp: In function 'bool good(int)': main.cpp:30:20: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] ll limit = 1<<L-1; ~^~