Compilare: user.cpp: In function ‘int trans(char)’: user.cpp:24:20: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(!(ch >= '0' && ch <= '9' || ch >= 'a' && ch <= 'z')) ^ user.cpp:31:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:82:47: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(poz >= 1 && poz <= n && has[poz] == h && viz[poz] == 0) ^