Compilare: main.cpp: In function 'void lee(std::pair<int, int>, char)': main.cpp:56:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if(tip='R') ^ main.cpp:67:15: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(tip=='R') ^ main.cpp: In function 'std::pair<int, int> rj(char)': main.cpp:52:1: warning: control reaches end of non-void function [-Wreturn-type] } ^