#E. 练32.1 立方和不等式

Type: RemoteJudge

1000ms

64MiB

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说明

试求满足下述立方和不等式的 $m$ 的最大整数解 $1^3+2^3+⋯+m^3$ ≤ $n$ 。

输入 $n$ ( $1≤n≤10^5$ ) 的值。

输出最大的 $m$ 。