十七
十七 Published on 2022-07-11

acwing278. 数字组合

题目![acwing278. 数字组合](https://baicai777.cn/upload/2022/07/image-1656692801132.png思路f[i]表示和为i时的数字个数,初始化f[0]=1,和为0时只有一种组合。#include<iostream>using n

十七 Published on 2022-07-02
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