Given the locations and heights of buildings in a city, determine the skyline formed by these buildings when viewed from a distance. The geometric information of each building is provided in the array buildings, where buildings[i] = [left[i], right[i], height[i]]: 1. left[i] represents the x-coordinate of the left edge of the ith building. 2. right[i] represents the x-coordinate of the right edge of the ith building. 3. height[i] represents the height of the ith building. Assume all buildings are perfect rectangles grounded on a flat surface at height 0. Represent the skyline as a list of "key points" sorted by their x-coordinate in the form [[x1,y1],[x2,y2],...]. Each key point represents the left endpoint of a horizontal segment in the skyline, except for the last point in the list, which always has a y-coordinate of 0 and marks the end of the skyline where the rightmost building ends. Include any ground between the leftmost and rightmost buildings as part of the skyline's contour. **Note**: The output skyline should not contain consecutive horizontal lines of equal height. Merge any consecutive lines of equal height into one in the final output.