Compilare: user.cpp: In function ‘int main()’: user.cpp:15:9: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] f>>s+1; ^ user.cpp:37:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<h[d].size();k++) ^ user.cpp:59:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<h[L].size();k++) ^