rewards[i+1][:-i-1] += np.maximum(rewards[i][:-i-1], rewards[i][1:-i])
时间: 2024-01-06 20:04:11 浏览: 52
This line of code uses numpy's maximum function to find the maximum value between two arrays.
The first array, rewards[i][:-i-1], is a slice of the rewards array starting from the beginning and ending at the i-th position from the end. This slice excludes the last i elements of the array.
The second array, rewards[i][1:-i], is a slice of the rewards array starting from the second element and ending at the i-th position from the end. This slice excludes the first i elements of the array.
By comparing these two slices element-wise, the maximum value at each position is selected and assigned to the corresponding position in the rewards[i 1][:-i-1] array. This operation effectively shifts the elements of the rewards array to the left, replacing each element with the maximum value between itself and the element to its right.