题解 | 金币
金币
https://www.nowcoder.com/practice/8f71f5670e6a45118d24d13868a2da9e
n = int(input())
s = 0
i = 1
while n > i:
n = n - i
i = i + 1
for j in range(i):
s = s + j**2
s = s + n * i
print(s)
金币
https://www.nowcoder.com/practice/8f71f5670e6a45118d24d13868a2da9e
n = int(input())
s = 0
i = 1
while n > i:
n = n - i
i = i + 1
for j in range(i):
s = s + j**2
s = s + n * i
print(s)
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