foo.cc: In function 'int FindAscCount(int*, int)':
foo.cc:129:13: warning: unused variable 'len' [-Wunused-variable]
  129 |         int len = 0;
      |             ^~~
foo.cc: In function 'int main()':
foo.cc:204:13: warning: unused variable 'xx' [-Wunused-variable]
  204 |         int xx = n1, yy = n2, zz = n3;
      |             ^~
foo.cc:204:22: warning: unused variable 'yy' [-Wunused-variable]
  204 |         int xx = n1, yy = n2, zz = n3;
      |                      ^~
foo.cc:204:31: warning: unused variable 'zz' [-Wunused-variable]
  204 |         int xx = n1, yy = n2, zz = n3;
      |                               ^~

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