Compilare: user.cpp: In function ‘void make_p()’: user.cpp:16:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=2;i<=strlen(p+1);++i){ ^ user.cpp: In function ‘int main()’: user.cpp:30:8: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] cin>>p+1>>t+1; ^ user.cpp:30:13: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] cin>>p+1>>t+1; ^