foo.cc: In function 'int main()':
foo.cc:5:31: warning: unused variable 't' [-Wunused-variable]
    5 |  int i, j, m, n, k, max, min, t, cnt = 0;
      |                               ^
foo.cc:5:26: warning: 'min' may be used uninitialized in this function [-Wmaybe-uninitialized]
    5 |  int i, j, m, n, k, max, min, t, cnt = 0;
      |                          ^~~

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