Compilare: main.cpp:2:47: warning: bad option '-f Ofast' to pragma 'optimize' [-Wpragmas] 2 | #pragma GCC optimize("O3, Ofast, unroll-loops") | ^ main.cpp:2:47: warning: bad option '-f unroll-loops' to pragma 'optimize' [-Wpragmas] main.cpp:15:20: warning: bad option '-f Ofast' to attribute 'optimize' [-Wattributes] 15 | void compute_sieve() { | ^ main.cpp:15:20: warning: bad option '-f unroll-loops' to attribute 'optimize' [-Wattributes] main.cpp:23:21: warning: bad option '-f Ofast' to attribute 'optimize' [-Wattributes] 23 | void compute_primes() { | ^ main.cpp:23:21: warning: bad option '-f unroll-loops' to attribute 'optimize' [-Wattributes] main.cpp:29:25: warning: bad option '-f Ofast' to attribute 'optimize' [-Wattributes] 29 | int get_kth(int n, int k) { | ^ main.cpp:29:25: warning: bad option '-f unroll-loops' to attribute 'optimize' [-Wattributes] main.cpp:51:26: warning: bad option '-f Ofast' to attribute 'optimize' [-Wattributes] 51 | void solve_1(const int &n) { | ^ main.cpp:51:26: warning: bad option '-f unroll-loops' to attribute 'optimize' [-Wattributes] main.cpp:55:26: warning: bad option '-f Ofast' to attribute 'optimize' [-Wattributes] 55 | void solve_2(const int &n) { | ^ main.cpp:55:26: warning: bad option '-f unroll-loops' to attribute 'optimize' [-Wattributes] main.cpp:65:10: warning: bad option '-f Ofast' to attribute 'optimize' [-Wattributes] 65 | int main() { | ^ main.cpp:65:10: warning: bad option '-f unroll-loops' to attribute 'optimize' [-Wattributes]