View Compilation Error

0_0_36961367_17789.cpp:3:67: error: unrecognized command line option '-funrool-all-loops'
 #pragma GCC optimize("-Ofast", "-funrool-all-loops", "-ffast-math")
                                                                   ^
0_0_36961367_17789.cpp:23:19: error: unrecognized command line option '-funrool-all-loops'
 pii f(pii a, pii b) {
                   ^
0_0_36961367_17789.cpp:35:15: error: unrecognized command line option '-funrool-all-loops'
 pii flip(pii p) {
               ^
0_0_36961367_17789.cpp:47:11: error: unrecognized command line option '-funrool-all-loops'
 void doit() {
           ^
0_0_36961367_17789.cpp:106:14: error: unrecognized command line option '-funrool-all-loops'
 int32_t main() {
              ^