foo.cc: In function 'int main()':
foo.cc:17:34: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare]
   17 |     for (int i = t + 1, j = 0; i <= strlen(s); i++, j++)
      |                                ~~^~~~~~~~~~~~
foo.cc:13:9: warning: unused variable 'm' [-Wunused-variable]
   13 |     int m = t + k;
      |         ^

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