Compilare: main.cpp: In constructor 'treap::treap(int)': main.cpp:9:16: warning: 'treap::r' will be initialized after [-Wreorder] 9 | treap *l, *r; | ^ main.cpp:8:10: warning: 'bool treap::rev' [-Wreorder] 8 | bool rev; | ^~~ main.cpp:10:5: warning: when initialized here [-Wreorder] 10 | treap(int x) : x(x), sz(1), pr(rng()), l(NULL), r(NULL), rev(false) {} | ^~~~~ main.cpp: In function 'std::array<treap*, 2> split(treap*, int)': main.cpp:34:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 34 | auto [l, r] = split(t -> l, k); | ^ main.cpp:39:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 39 | auto [l, r] = split(t -> r, k - size(t -> l) - 1); | ^ main.cpp: In function 'std::array<treap*, 3> splice(treap*, int, int)': main.cpp:53:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 53 | auto [aux, r] = split(t, b); | ^ main.cpp:54:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 54 | auto [l, m] = split(aux, a); | ^ main.cpp: In function 'void insert(int, int)': main.cpp:58:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 58 | auto [l, r] = split(root, k); | ^ main.cpp: In function 'void del(int, int)': main.cpp:62:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 62 | auto [l, m, r] = splice(root, a, b); | ^ main.cpp: In function 'void mirror(int, int)': main.cpp:66:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 66 | auto [l, m, r] = splice(root, a, b); | ^