时间限制: 2s
内存限制: 192MB 提交: 2748 解决: 1090
题目描述
一个正整数可以划分为多个正整数的和,比如n=3时:
3;1+2;1+1+1;
共有三种划分方法。
给出一个正整数,问有多少种划分方法。
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