https://www.lydsy.com/JudgeOnline/problem.php?id=1833

题解:数位DP

/*
*@Author:   STZG
*@Language: C++
*/
#include <bits/stdc++.h>
#include<iostream>
#include<algorithm>
#include<cstdlib>
#include<cstring>
#include<cstdio>
#include<string>
#include<vector>
#include<bitset>
#include<queue>
#include<deque>
#include<stack>
#include<cmath>
#include<list>
#include<map>
#include<set>
//#define DEBUG
#define RI register int
using namespace std;
typedef long long ll;
//typedef __int128 lll;
const int N=100000+10;
const int MOD=1e9+7;
const double PI = acos(-1.0);
const double EXP = 1E-8;
const int INF = 0x3f3f3f3f;
ll t,n,m,k,q;
int ans,cnt,flag,temp;
ll f[100], c[100], a[100], p[100];

ll dfs(int x, int dig, int front, int limit) {
    if(!x) return 0;
    if(!front && !limit && f[x]!=-1) return f[x];
    ll last=(limit?a[x]:9), tot=0;
    for(int i=0;i<=last;i++) {
        if(front && i==0)
            tot+=dfs(x-1, dig, 1, limit&&i==last);
        else if(i==dig) {
            if(i==last && limit)
                tot+=c[x-1]+1+dfs(x-1, dig, 0, limit&&i==last); //正好在这个数上
            else
                tot+=p[x-1]+dfs(x-1, dig, 0, limit&&i==last);
        }else tot+=dfs(x-1, dig, 0, limit&&i==last);
    }
    if(!front && !limit) f[x]=tot;
    return tot;
}
ll getans(ll x, int dig) {
    memset(f,-1,sizeof(f));
    ll t=x; int len=0;
    while(t) a[++len]=t%10, t/=10, c[len]=c[len-1]+a[len]*p[len-1];
    return dfs(len, dig, 1, 1);
}
int main()
{
#ifdef DEBUG
	freopen("input.in", "r", stdin);
	//freopen("output.out", "w", stdout);
#endif
    //scanf("%d",&n);
    //scanf("%d",&t);
    while(~scanf("%lld%lld",&n,&m)){
        p[0]=1; for(int i=1;i<15;i++)  p[i]=p[i-1]*10;
        for(int i=0;i<9;i++)
            printf("%lld ", getans(m, i)-getans(n-1, i));
        printf("%lld\n", getans(m, 9)-getans(n-1, 9));
    }
    //cout << "Hello world!" << endl;
    return 0;
}