题解 | #等差数列#
等差数列
http://www.nowcoder.com/practice/f792cb014ed0474fb8f53389e7d9c07f
while True:
try:
s=int(input())
w=3*s+2
L=range(2,w,3)
print(sum(L))
except:
break 等差数列
http://www.nowcoder.com/practice/f792cb014ed0474fb8f53389e7d9c07f
while True:
try:
s=int(input())
w=3*s+2
L=range(2,w,3)
print(sum(L))
except:
break 相关推荐
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