Compilare: main.cpp: In function 'int max_xor(node*, int)': main.cpp:46:41: warning: suggest parentheses around assignment used as truth value [-Wparentheses] 46 | } else if(curr->f[(ok == 1 ? ok = 0 : ok = 1)] != NULL) { | ~~~^~~ main.cpp:46:50: warning: suggest parentheses around assignment used as truth value [-Wparentheses] 46 | } else if(curr->f[(ok == 1 ? ok = 0 : ok = 1)] != NULL) { | ~~~^~~ main.cpp: In function 'int main()': main.cpp:92:11: warning: unused variable 'curr' [-Wunused-variable] 92 | node *curr = root; | ^~~~ main.cpp:91:39: warning: 'r' may be used uninitialized [-Wmaybe-uninitialized] 91 | cout << ans << " " << l << " " << r; | ^ main.cpp:69:21: note: 'r' was declared here 69 | int ans = 0, l, r; | ^ main.cpp:91:32: warning: 'l' may be used uninitialized [-Wmaybe-uninitialized] 91 | cout << ans << " " << l << " " << r; | ^~~ main.cpp:69:18: note: 'l' was declared here 69 | int ans = 0, l, r; | ^