Compilare: user.cpp: In function ‘int get()’: user.cpp:17:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (chr(c[i])) if (chr(c[i+1])) p = (c[i]-'0')*10 + c[i+1]-'0',i+=2;else p=c[i]-'0',++i; ^ user.cpp: In function ‘int main()’: user.cpp:59:12: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if ('0' <= c[i] && c[i] <= '9') if ('0' <= c[i+1] && c[i+1] <= '9') p = (c[i] - '0') * 10 + c[i+1] - '0',i+=2;else p = c[i] - '0',++i;++N; ^