Compilare: main.cpp: In function 'bool isLetterOrDigit(char)': main.cpp:8:25: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 8 | return c >= 'A' && c <= 'Z' || c >= 'a' && c <= 'z' || c >= '0' && c <= '9'; | ~~~~~~~~~^~~~~~~~~~~ main.cpp:8:73: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 8 | return c >= 'A' && c <= 'Z' || c >= 'a' && c <= 'z' || c >= '0' && c <= '9'; | ~~~~~~~~~^~~~~~~~~~~