#H. 【例27.3】 第几项

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    Type: Default 1000ms 256MiB

【例27.3】 第几项

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说明

对于正整数nn,mm，求s=1+2+3……+ns=1+2+3……+n，当加到第几项时，ss的值会超过mm？

输入格式

输入mm。(1≤m≤400001≤m≤40000)

输出格式

输出nn。

样例

1000
45

2024022204-day4

Not Attended
Status
Done
Rule
ACM/ICPC
Problem
9
Start at
2024-2-22 17:00
End at
2024-2-22 18:30
Duration
1.5 hour(s)
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Partic.
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