View Compilation Error

0_0_39843375_28738.cpp: In function 'int main()':
0_0_39843375_28738.cpp:35:28: error: 'asin' was not declared in this scope
   35 |                 ld alpha = asin(dst/inring);
      |                            ^~~~
0_0_39843375_28738.cpp:36:27: error: 'acos' was not declared in this scope
   36 |                 ld circle=acos(-1);
      |                           ^~~~
0_0_39843375_28738.cpp:38:26: error: 'floor' was not declared in this scope
   38 |                 ll cnt = floor(circle/alpha);
      |                          ^~~~~