發表新討論
#41885: PYTHON解 簡單解


suyueh (suyueh)

b558. 求數列第 n 項 | From: [49.216.223.40] | 發表日期: 2024-09-07 16:06
while True:
  try:
    r=0
    for i in range(1,int(input())):
      r=r+i
    print(r+1)
  except:
    break
ZeroJudge Forum