message: Update maximum-sum-circular-subarray.cpp
diff: @@ -14,6 +14,6 @@ public:
  min_sum = min(min_sum, cur_min);
  total += a;
  }
  - return max_sum > 0 ? max(max_sum, total - min_sum) : max_sum;
  + return max_sum >= 0 ? max(max_sum, total - min_sum) : max_sum;
  }
  };
  