message: Update maximum-side-length-of-a-square-with-sum-less-than-or-equal-to-threshold.cpp
diff: @@ -10,6 +10,7 @@ public:
  dp[i][j] = dp[i - 1][j] + dp[i][j - 1] - dp[i - 1][j - 1] + mat[i - 1][j - 1];
  }
  }
  +
  int left = 0, right = min(mat.size(), mat[0].size());
  while (left <= right) {
  const auto mid = left + (right - left) / 2;
  