답안 #817761

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
817761	2023-08-09T15:47:31 Z	vjudge1	Palindrome-Free Numbers (BOI13_numbers)	C++17	100 / 100	1 ms	392 KB

numbers

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

int v[20];
int64_t f[20][2][2][11][11];

int64_t DP(int i, int lo, int iz, int prv, int prv2) {
        if (i == 20) return 1;
        int64_t& res = f[i][lo][iz][prv + 1][prv2 + 1];
        if (lo && res != -1) return res;
        int lim = lo ? 9 : v[i];
        int64_t ans = 0;
        for (int d = 0; d <= lim; d++) {
                int niz = iz || (d > 0);
                if (d != prv2 && d != prv) ans += DP(i + 1, lo || (d < lim), niz, niz ? d : -1, prv);
        }
        if (lo) res = ans;
        return ans;
}

int64_t solve(int64_t x) {
        for (int i = 19; i >= 0; i--) v[i] = x % 10, x /= 10;
        return DP(0, 0, 0, -1, -1);
}

int32_t main() {
        ios_base::sync_with_stdio(0);
        cin.tie(0);
        int64_t a, b;
        cin >> a >> b;
        a--;
        memset(f, -1, sizeof f);
        cout << solve(b) - solve(a);
}

Subtask #1

25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	0 ms	384 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	0 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	0 ms	340 KB	Output is correct
15	Correct	0 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	0 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct

Subtask #2

75.0 / 75.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	0 ms	340 KB	Output is correct
13	Correct	0 ms	340 KB	Output is correct
14	Correct	0 ms	340 KB	Output is correct
15	Correct	0 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	392 KB	Output is correct
18	Correct	0 ms	340 KB	Output is correct
19	Correct	0 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	0 ms	340 KB	Output is correct
22	Correct	1 ms	340 KB	Output is correct
23	Correct	0 ms	340 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	0 ms	340 KB	Output is correct
26	Correct	0 ms	340 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	0 ms	340 KB	Output is correct
31	Correct	0 ms	340 KB	Output is correct
32	Correct	1 ms	340 KB	Output is correct
33	Correct	1 ms	340 KB	Output is correct
34	Correct	1 ms	340 KB	Output is correct
35	Correct	0 ms	340 KB	Output is correct
36	Correct	0 ms	340 KB	Output is correct
37	Correct	0 ms	340 KB	Output is correct
38	Correct	0 ms	340 KB	Output is correct
39	Correct	0 ms	340 KB	Output is correct
40	Correct	1 ms	340 KB	Output is correct
41	Correct	0 ms	340 KB	Output is correct
42	Correct	1 ms	340 KB	Output is correct
43	Correct	0 ms	340 KB	Output is correct
44	Correct	1 ms	340 KB	Output is correct
45	Correct	1 ms	340 KB	Output is correct