Compilare: 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:70:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 70 | auto [l, r] = split(root, pos); | ^ main.cpp: In function 'void erase(int)': main.cpp:76:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 76 | auto [l, r1] = split(root, pos); | ^ main.cpp:77:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 77 | auto [to_delete, r] = split(r1, 1); | ^ main.cpp: In function 'int solve()': main.cpp:94:1: warning: control reaches end of non-void function [-Wreturn-type] 94 | } | ^