답안 #82632

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
82632 2018-11-01T07:05:49 Z fasterthanyou Palindrome-Free Numbers (BOI13_numbers) C++14
100 / 100
7 ms 5508 KB
#include <iostream>
#include <cstdio>
#include <vector>
#include <cstring>
#include <algorithm>
using namespace std;

int k;
long long l, r;
long long dp[50][15][15][5][5][2];
vector<int> digitl;
vector<int> digitr;

long long solve (int cur, int last1, int last2, bool low, bool high, bool ok)
{
    //if (last1>=0&&last2>=0)
    if (dp[cur][last1][last2][low][high][ok]!=-1) return dp[cur][last1][last2][low][high][ok];
    if (cur==k) return 1ll;
    long long cnt=0ll;
    for (int i=0; i<10; i++)
        if (i!=last1&&i!=last2&&(low||i>=digitl[cur])&&(high||i<=digitr[cur]))
            cnt+=solve(cur+1, (!ok&&i<1?10:i), last1, low||i>digitl[cur], high||i<digitr[cur], ok||(i>0));
    dp[cur][last1][last2][low][high][ok]=cnt;
    return cnt;
}

int main()
{
    //freopen("numbers.inp", "r", stdin);
    //freopen("numbers.out", "w", stdout);
    cin>>l>>r;
    while (l>0)
        digitl.push_back(l%10ll), l/=10ll;
    while (r>0)
        digitr.push_back(r%10ll), r/=10ll;
    while ((int)digitl.size()<(int)digitr.size()) digitl.push_back(0);
    while ((int)digitr.size()<(int)digitl.size()) digitr.push_back(0);
    k=(int)digitr.size();
    reverse(digitl.begin(), digitl.end());
    reverse(digitr.begin(), digitr.end());
    memset(dp, -1, sizeof dp);
    cout<<solve(0, 10, 10, 0, 0, 0);
    return 0;
}
# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 4856 KB Output is correct
2 Correct 6 ms 4860 KB Output is correct
3 Correct 6 ms 4924 KB Output is correct
4 Correct 6 ms 5060 KB Output is correct
5 Correct 5 ms 5064 KB Output is correct
6 Correct 5 ms 5064 KB Output is correct
7 Correct 5 ms 5064 KB Output is correct
8 Correct 5 ms 5076 KB Output is correct
9 Correct 5 ms 5076 KB Output is correct
10 Correct 5 ms 5128 KB Output is correct
11 Correct 5 ms 5128 KB Output is correct
12 Correct 5 ms 5128 KB Output is correct
13 Correct 5 ms 5128 KB Output is correct
14 Correct 5 ms 5128 KB Output is correct
15 Correct 5 ms 5128 KB Output is correct
16 Correct 7 ms 5168 KB Output is correct
17 Correct 5 ms 5324 KB Output is correct
18 Correct 5 ms 5324 KB Output is correct
19 Correct 6 ms 5324 KB Output is correct
20 Correct 7 ms 5324 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 5360 KB Output is correct
2 Correct 6 ms 5360 KB Output is correct
3 Correct 6 ms 5360 KB Output is correct
4 Correct 5 ms 5360 KB Output is correct
5 Correct 6 ms 5404 KB Output is correct
6 Correct 5 ms 5404 KB Output is correct
7 Correct 5 ms 5404 KB Output is correct
8 Correct 5 ms 5404 KB Output is correct
9 Correct 5 ms 5404 KB Output is correct
10 Correct 5 ms 5404 KB Output is correct
11 Correct 6 ms 5404 KB Output is correct
12 Correct 5 ms 5404 KB Output is correct
13 Correct 5 ms 5404 KB Output is correct
14 Correct 5 ms 5404 KB Output is correct
15 Correct 5 ms 5404 KB Output is correct
16 Correct 5 ms 5404 KB Output is correct
17 Correct 5 ms 5404 KB Output is correct
18 Correct 5 ms 5404 KB Output is correct
19 Correct 5 ms 5404 KB Output is correct
20 Correct 5 ms 5404 KB Output is correct
21 Correct 5 ms 5404 KB Output is correct
22 Correct 5 ms 5404 KB Output is correct
23 Correct 6 ms 5404 KB Output is correct
24 Correct 5 ms 5404 KB Output is correct
25 Correct 6 ms 5404 KB Output is correct
26 Correct 6 ms 5404 KB Output is correct
27 Correct 6 ms 5404 KB Output is correct
28 Correct 6 ms 5404 KB Output is correct
29 Correct 5 ms 5404 KB Output is correct
30 Correct 5 ms 5404 KB Output is correct
31 Correct 6 ms 5404 KB Output is correct
32 Correct 6 ms 5404 KB Output is correct
33 Correct 7 ms 5404 KB Output is correct
34 Correct 6 ms 5404 KB Output is correct
35 Correct 6 ms 5404 KB Output is correct
36 Correct 5 ms 5412 KB Output is correct
37 Correct 6 ms 5412 KB Output is correct
38 Correct 6 ms 5416 KB Output is correct
39 Correct 6 ms 5504 KB Output is correct
40 Correct 7 ms 5504 KB Output is correct
41 Correct 6 ms 5504 KB Output is correct
42 Correct 5 ms 5504 KB Output is correct
43 Correct 6 ms 5504 KB Output is correct
44 Correct 6 ms 5504 KB Output is correct
45 Correct 6 ms 5508 KB Output is correct