Compilare: main.cpp: In function 'long long int getz(long long int)': main.cpp:45:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=2;i<d.size();++i){ ~^~~~~~~~~ main.cpp:49:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i+1!=d.size()) dp[i][0]++; ~~~^~~~~~~~~~