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Submission #1108348

# Submission time Handle Problem Language Result Execution time Memory
1108348 2024-11-03T21:55:11 Z Kirill22 Palindrome-Free Numbers (BOI13_numbers) C++17
100 / 100
 3 ms 592 KB 
#include "bits/stdc++.h"
 
using namespace std;
 
long long get(long long r) {
    if (r <= 0) {
        return 0;
    }
    map<array<int, 3>, long long> dp;
    string s = to_string(r);
    for (int i = 0; i < (int) s.size(); i++) {
        auto dp2 = dp;
        dp.clear();
        for (int j = 0; j < 10; j++) {
            if (i == 0) {
                if (j && j < s[i] - '0') {
                    dp[{0, -1, j}]++;
                }
                if (j == s[i] - '0') {
                    dp[{1, -1, j}]++;
                }
            } else {
                if (j) {
                    dp[{0, -1, j}]++;
                }
            }
            for (auto [_, cnt] : dp2) {
                auto [t, x, y] = _;
                if (x == j || y == j) {
                    continue;
                }
                if (t == 1 && j > s[i] - '0') {
                    continue;
                }
                int nt = t;
                if (j < s[i] - '0') {
                    nt = 0;
                }
                dp[{nt, y, j}] += cnt;
            }
        }
    }
    long long ans = 0;
    for (auto [_, cnt] : dp) {
        ans += cnt;
    }
    return ans;
}
 
void solve() {
    long long l, r;
    cin >> l >> r;
    cout << get(r) - get(l - 1) + int(l <= 0 && 0 <= r) << '\n';
}
 
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int t = 1;
//    cin >> t;
    while (t--) {
        solve();
    }
}

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 2 ms 504 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 592 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 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 336 KB Output is correct
19 Correct 2 ms 508 KB Output is correct
20 Correct 1 ms 336 KB Output is correct

Subtask #2
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 2 ms 336 KB Output is correct
3 Correct 2 ms 336 KB Output is correct
4 Correct 2 ms 336 KB Output is correct
5 Correct 2 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 3 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 2 ms 336 KB Output is correct
21 Correct 2 ms 344 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 2 ms 336 KB Output is correct
24 Correct 2 ms 480 KB Output is correct
25 Correct 2 ms 504 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 2 ms 336 KB Output is correct
28 Correct 2 ms 460 KB Output is correct
29 Correct 2 ms 456 KB Output is correct
30 Correct 2 ms 336 KB Output is correct
31 Correct 2 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 2 ms 504 KB Output is correct
34 Correct 2 ms 336 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 1 ms 336 KB Output is correct
37 Correct 2 ms 336 KB Output is correct
38 Correct 2 ms 336 KB Output is correct
39 Correct 2 ms 336 KB Output is correct
40 Correct 1 ms 336 KB Output is correct
41 Correct 1 ms 336 KB Output is correct
42 Correct 2 ms 336 KB Output is correct
43 Correct 3 ms 336 KB Output is correct
44 Correct 2 ms 336 KB Output is correct
45 Correct 2 ms 336 KB Output is correct