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Submission #894614

# Submission time Handle Problem Language Result Execution time Memory
894614 2023-12-28T14:26:49 Z IWKR Palindrome-Free Numbers (BOI13_numbers) C++17
100 / 100
 2 ms 604 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long

int dp[20][10][10][2][2][2];

int cal(int len, int l, int ll, bool bound, bool zero1, bool zero2, string target) {
    if (len == target.size()) {
        return 1;
    }
    if (dp[len][l][ll][bound][zero1][zero2] != -1) {
        return dp[len][l][ll][bound][zero1][zero2];
    }
    int ans = 0;
    for (int i = 0; i <= 9; i++) {
        if ((!zero1 && i == l) || (!zero2 && i == ll)) {
            continue;
        } else {
            if (bound && i > target[len] - '0') {
                break;
            }
            ans += cal(len + 1, i, l, bound && (i == target[len] - '0'), i == 0 && zero1, zero1, target);
        }
    }
    dp[len][l][ll][bound][zero1][zero2] = ans;
    return ans;
}

int32_t main() {
    int a, b;
    cin >> a >> b;
    string s = to_string(a - 1);
    string t = to_string(b);
    memset(dp, -1, sizeof dp);
    int ans = cal(0, 0, 0, true, true, true, t);
    memset(dp, -1, sizeof dp);
    cout << ans - cal(0, 0, 0, true, true, true, s);
}

Compilation message

numbers.cpp: In function 'long long int cal(long long int, long long int, long long int, bool, bool, bool, std::string)':
numbers.cpp:9:13: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |     if (len == target.size()) {
      |         ~~~~^~~~~~~~~~~~~~~~

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 444 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct

Subtask #2
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 2 ms 604 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 564 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 344 KB Output is correct
40 Correct 1 ms 348 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 1 ms 344 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 1 ms 440 KB Output is correct