Compilare: main.cpp: In function 'void kmp()': main.cpp:28:20: warning: suggest parentheses around '&&' within '||' [-Wparentheses] while (!(c >= 'A' && c <= 'Z' || c >= 'a' && c <= 'z' || c >= '0' && c <= '9')) ~~~~~~~~~^~~~~~~~~~~ main.cpp:28:68: warning: suggest parentheses around '&&' within '||' [-Wparentheses] while (!(c >= 'A' && c <= 'Z' || c >= 'a' && c <= 'z' || c >= '0' && c <= '9')) ~~~~~~~~~^~~~~~~~~~~