Compilare: user.cpp: In function ‘int main()’: user.cpp:47: warning: suggest parentheses around ‘+’ inside ‘>>’ user.cpp:48: warning: suggest parentheses around ‘+’ inside ‘<<’ user.cpp:51: warning: suggest parentheses around ‘+’ inside ‘>>’ user.cpp:53: warning: suggest parentheses around ‘+’ inside ‘<<’ user.cpp:55: warning: suggest parentheses around ‘+’ inside ‘>>’ user.cpp:57: warning: suggest parentheses around ‘+’ inside ‘<<’ user.cpp:59: warning: suggest parentheses around ‘+’ inside ‘>>’ user.cpp:61: warning: suggest parentheses around ‘+’ inside ‘<<’