Compilare: main.cpp: In function 'int main()': main.cpp:211:51: warning: second operand of conditional expression has no effect [-Wunused-value] 211 | cout << list.exists(x) ? 1 : 0 << '\n'; | ^ main.cpp:211:44: warning: third operand of conditional expression has no effect [-Wunused-value] 211 | cout << list.exists(x) ? 1 : 0 << '\n'; | ~~^~~~~~~