题解 | #小乐乐求和#
小乐乐求和
https://www.nowcoder.com/practice/ce0b2eacd3d04647831358c2876e44ff
n=int(input()) # sum=0 # i=0 # while i<n: # i+=1 # sum=sum+i # print(sum) # print(sum(range(1,n+1))) print(((1+n)*n)//2)
小乐乐求和
https://www.nowcoder.com/practice/ce0b2eacd3d04647831358c2876e44ff
n=int(input()) # sum=0 # i=0 # while i<n: # i+=1 # sum=sum+i # print(sum) # print(sum(range(1,n+1))) print(((1+n)*n)//2)
相关推荐