Compilare: main.cpp: In constructor 'treap::treap(int)': main.cpp:11:14: warning: 'treap::priority' will be initialized after [-Wreorder] 11 | int val, priority, subtree_size; | ^~~~~~~~ main.cpp:10:12: warning: 'treap* treap::left' [-Wreorder] 10 | treap *left, *right; | ^~~~ main.cpp:21:5: warning: when initialized here [-Wreorder] 21 | treap(int x) : val(x), priority(rng()), left(NULL), right(NULL) { update(); } | ^~~~~ main.cpp: In function 'std::array<treap*, 2> split(treap*, int)': main.cpp:28:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 28 | auto [res_left, res_right] = split(t -> left, key); | ^ main.cpp:33:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 33 | auto [res_left, res_right] = split(t -> right, key - size(t -> left) - 1); | ^ main.cpp: In function 'void insert(int, int)': main.cpp:67:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 67 | auto [l, r] = split(root, pos); | ^ main.cpp: In function 'void erase(int)': main.cpp:73:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 73 | auto [l, r1] = split(root, pos); | ^ main.cpp:74:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 74 | auto [to_delete, r] = split(r1, 1); | ^ main.cpp: In function 'int solve()': main.cpp:90:1: warning: no return statement in function returning non-void [-Wreturn-type] 90 | } | ^