Compilare: user.cpp: In function ‘int main()’: user.cpp:11:10: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] f>>st+1; ^ user.cpp:13:11: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] f>>stt+1; ^ user.cpp:24:17: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] while(f>>stt+1) ^ user.cpp:44:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(h[nrr][i]==nr) ^ user.cpp:56:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(h[nrr][j]==nr) ^