Submission #490552

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
490552	2021-11-28T01:06:33 Z	Rainbowbunny	Palindrome-Free Numbers (BOI13_numbers)	C++17	100 / 100	1 ms	344 KB

numbers

#include <bits/stdc++.h>
using namespace std;

vector <int> Digit;
long long dp[20][2][2][11][11];

long long l, r;

long long F(int pos, int big, int start, int ppdigit, int pdigit)
{

    if(pos == (int)Digit.size())
    {
        return 1;
    }
    long long &cur = dp[pos][big][start][ppdigit][pdigit];
    if(cur != -1)
    {
        return cur;
    }
    cur = 0;
    int can = (big ? 9 : Digit[pos]);
    for(int nxtdigit = 0; nxtdigit <= can; nxtdigit++)
    {
        if(nxtdigit == pdigit or nxtdigit == ppdigit)
        {
            continue;
        }
        cur += F(pos + 1, big | (nxtdigit < Digit[pos]), start | (nxtdigit > 0), pdigit, (start | (nxtdigit > 0)) ? nxtdigit : 10);
    }
    return cur;
}

long long Count(long long x)
{
    if(x < 0)
    {
        return 0;
    }
    for(int i = 0; i < 20; i++)
    {
        for(int j = 0; j < 2; j++)
        {
            for(int k = 0; k < 2; k++)
            {
                for(int l = 0; l < 11; l++)
                {
                    for(int h = 0; h < 11; h++)
                    {
                        dp[i][j][k][l][h] = -1;
                    }
                }
            }
        }
    }
    Digit.clear();
    while(x)
    {
        Digit.push_back(x % 10);
        x /= 10;
    }
    reverse(Digit.begin(), Digit.end());
    return F(0, 0, 0, 10, 10);
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin >> l >> r;
    cout << Count(r) - Count(l - 1) << '\n';
}

Subtask #1

25.0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	332 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	312 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	0 ms	332 KB	Output is correct
6	Correct	0 ms	332 KB	Output is correct
7	Correct	0 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	0 ms	332 KB	Output is correct
10	Correct	0 ms	332 KB	Output is correct
11	Correct	0 ms	332 KB	Output is correct
12	Correct	0 ms	332 KB	Output is correct
13	Correct	0 ms	332 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	0 ms	332 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	316 KB	Output is correct

Subtask #2

75.0 / 75.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	320 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	0 ms	332 KB	Output is correct
6	Correct	0 ms	332 KB	Output is correct
7	Correct	0 ms	332 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	0 ms	312 KB	Output is correct
11	Correct	0 ms	332 KB	Output is correct
12	Correct	0 ms	332 KB	Output is correct
13	Correct	1 ms	324 KB	Output is correct
14	Correct	0 ms	336 KB	Output is correct
15	Correct	1 ms	336 KB	Output is correct
16	Correct	1 ms	336 KB	Output is correct
17	Correct	1 ms	336 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	340 KB	Output is correct
23	Correct	1 ms	324 KB	Output is correct
24	Correct	1 ms	344 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	324 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	1 ms	340 KB	Output is correct
31	Correct	1 ms	328 KB	Output is correct
32	Correct	1 ms	340 KB	Output is correct
33	Correct	0 ms	332 KB	Output is correct
34	Correct	1 ms	332 KB	Output is correct
35	Correct	1 ms	332 KB	Output is correct
36	Correct	1 ms	332 KB	Output is correct
37	Correct	1 ms	332 KB	Output is correct
38	Correct	1 ms	332 KB	Output is correct
39	Correct	1 ms	332 KB	Output is correct
40	Correct	1 ms	332 KB	Output is correct
41	Correct	1 ms	332 KB	Output is correct
42	Correct	1 ms	332 KB	Output is correct
43	Correct	1 ms	332 KB	Output is correct
44	Correct	1 ms	332 KB	Output is correct
45	Correct	1 ms	332 KB	Output is correct