数位DP,求[L,R]区间内所有"数字内包含的不同数码不超过k个的数字"之和.在状态上加一维状态压缩表示含有的数码集合.一开始读错题以为是求数字的个数.读对题之后调了一会儿. #include<cstdio> typedef long long ll; const int mod=998244353; int cnt1[1024]; int f[20][1024],g[20][1024]; int F[20][1024],G[20][1024]; int p10[20];…
E - Segment Sum 思路: 数位dp 我们平时做的数位dp都是求满足条件的数的个数, 这里要求满足条件的数的和 只要在原来的基础上求每一位的贡献就可以了,所以传参数时要传两个 代码: #pragma GCC optimize(2) #pragma GCC optimize(3) #pragma GCC optimize(4) #include<bits/stdc++.h> using namespace std; #define fi first #define se second…
You are given two integers l l and r r (l≤r l≤r ). Your task is to calculate the sum of numbers from l l to r r (including l l and r r ) such that each number contains at most k k different digits, and print this sum modulo 998244353 998244353 . For…
前言 [LeetCode 题解]系列传送门: http://www.cnblogs.com/double-win/category/573499.html 1.题目描述 Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given sum. For example…
39. Combination Sum Given a set of candidate numbers (C) (without duplicates) and a target number (T), find all unique combinations in C where the candidate numbers sums to T. The same repeated number may be chosen from C unlimited number of times. N…
