Compilare: main.cpp: In function 'void stringify(long long int, long long int)': main.cpp:24:47: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] 24 | r = max(i, r), s[i] = (((1 << 2 * f - i - 1 ) & a) > 0) + 1; | ~~~~~~~~~~^~~ main.cpp:40:26: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] 40 | total += sum * (1 << f - shift); | ~~^~~~~~~ main.cpp: In function 'int main()': main.cpp:58:13: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 58 | for(auto &[a , b] : v) | ^ main.cpp:61:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 61 | for(auto [h, x] : v) { | ^