coins.cpp: In function 'std::vector<int> coin_flips(std::vector<int>, int)':
coins.cpp:9:17: warning: narrowing conversion of 't' from 'll' {aka 'long long int'} to 'int' [-Wnarrowing]
    9 |         return {t};
      |                 ^
coins.cpp:9:17: warning: narrowing conversion of 't' from 'll' {aka 'long long int'} to 'int' [-Wnarrowing]
grader.cpp: In function 'void shuffle(std::vector<int>&)':
grader.cpp:88:23: warning: 'void std::random_shuffle(_RAIter, _RAIter) [with _RAIter = __gnu_cxx::__normal_iterator<int*, vector<int> >]' is deprecated: use 'std::shuffle' instead [-Wdeprecated-declarations]
   88 |         random_shuffle(v.begin(), v.end());
      |         ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/13/algorithm:61,
                 from grader.cpp:5:
/usr/include/c++/13/bits/stl_algo.h:4581:5: note: declared here
 4581 |     random_shuffle(_RandomAccessIterator __first, _RandomAccessIterator __last)
      |     ^~~~~~~~~~~~~~