代码
# backward() accumulates the gradient for this tensor into .grad attribute.
# !!! We need to be careful during optimization !!!
# Use .zero_() to empty the gradients before a new optimization step!
weights torch.ones(4, requires_gradTrue)for epoch i…
789. 数的范围 - AcWing题库
import java.util.*;public class Main{static int N 100010;static int[] a new int[N];public static void main(String[] args){Scanner sc new Scanner(System.in);int n sc.nextInt();int m sc.nextInt();for(int i 0; i < n; i ){…