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unknown_0711

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Dec 18th, 2022
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  1. ArrayList<Integer> ans = new ArrayList<Integer>();
  2. int i, k = 0, l = 0;
  3. while (k < n && l < m) {
  4. for (i = k; i < n; ++i) {
  5. ans.add(matrix[i][l]);
  6. }
  7. l++;
  8.  
  9.  
  10. for (i = l; i < m; i++) {
  11. ans.add(matrix[n-1][i]);
  12. }
  13. n--;
  14. if (k < n-1) {
  15. for (i = n-1; i >=k; --i) {
  16. ans.add(matrix[i][m - 1]);
  17. }
  18. m--;
  19. }
  20. if (l < m-1) {
  21. for (i = m-1; i >= l; --i) {
  22. ans.add(matrix[k][i]);
  23. }
  24. k++;
  25. }
  26. }
  27. return ans;
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