Compilare: user.cpp: In function ‘int main()’: user.cpp:24:16: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] f>>l>>c+1; ^ user.cpp:25:13: warning: unused variable ‘sol’ [-Wunused-variable] int sol=0; ^ user.cpp: In function ‘char afll(char, char)’: user.cpp:17:1: warning: control reaches end of non-void function [-Wreturn-type] } ^