Compilare: main.cpp: In function 'void solve()': main.cpp:10:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 10 | for (auto& [x, y] : a) cin >> x >> y; | ^ main.cpp:12:17: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 12 | const auto& [x1, y1] = a[i]; | ^ main.cpp:14:19: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 14 | const auto& [x2, y2] = a[j]; | ^ main.cpp:19:7: warning: unused variable 't' [-Wunused-variable] 19 | int t = n * (n - 1), r = 0; | ^