Submission #860151

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
860151	2023-10-11T19:51:17 Z	raphaelp	Palindrome-Free Numbers (BOI13_numbers)	C++14	73.75 / 100	1 ms	604 KB

numbers

#include <bits/stdc++.h>
using namespace std;
long long nb(long long N)
{
    if (N == -1)
        return 0;
    long long mult = 1;
    int var = 0;
    while (pow(10, var) < N)
        var++;
    long long tot = 0;
    int first = 0;
    long long i = 1;
    for (int j = 0; i < N; j++)
    {
        i = pow(10, j);
        if (N / i > 9 && (N / i) % 10 == (N / i / 10) % 10)
        {
            first = j + 1;
        }
        if (N / i > 99 && (N / i) % 10 == (N / i / 100) % 10)
        {
            first = j + 1;
        }
        i = pow(10, j + 1);
    }
    if (first == 0)
        tot++;
    for (int i = 1; i < first; i++)
    {
        N /= 10;
        mult *= 8;
    }
    for (int i = first; N; i++)
    {
        int pos = N % 10;
        if (N < 10)
            pos--;
        if (N > 9 && (N / 10) % 10 < N % 10)
            pos--;
        if (N > 99 && (N / 100) % 10 < N % 10)
            pos--;
        tot += pos * mult;
        N /= 10;
        if (N > 9)
            mult *= 8;
        else
            mult *= 9;
    }
    mult = 9;
    for (int i = 0; i < var; i++)
    {
        if (i == 0)
            tot++;
        tot += mult;
        if (i == 1)
            mult *= 9;
        else
            mult *= 8;
    }
    return tot;
}
int main()
{
    long long a, b;
    cin >> a >> b;
    cout << nb(b) - nb(a - 1) << endl;
}

Subtask #1

13.75 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	0 ms	344 KB	Output isn't correct
2	Incorrect	0 ms	344 KB	Output isn't correct
3	Correct	0 ms	436 KB	Output is correct
4	Incorrect	0 ms	348 KB	Output isn't correct
5	Correct	0 ms	348 KB	Output is correct
6	Incorrect	0 ms	348 KB	Output isn't correct
7	Incorrect	0 ms	348 KB	Output isn't correct
8	Incorrect	0 ms	348 KB	Output isn't correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	412 KB	Output is correct
13	Correct	0 ms	344 KB	Output is correct
14	Incorrect	1 ms	604 KB	Output isn't correct
15	Incorrect	0 ms	348 KB	Output isn't correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	600 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Incorrect	0 ms	348 KB	Output isn't correct

Subtask #2

60.0 / 75.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	344 KB	Output is correct
5	Incorrect	0 ms	348 KB	Output isn't correct
6	Correct	0 ms	348 KB	Output is correct
7	Incorrect	0 ms	432 KB	Output isn't correct
8	Incorrect	0 ms	352 KB	Output isn't correct
9	Incorrect	0 ms	348 KB	Output isn't correct
10	Incorrect	0 ms	436 KB	Output isn't correct
11	Correct	1 ms	440 KB	Output is correct
12	Incorrect	0 ms	348 KB	Output isn't correct
13	Incorrect	0 ms	348 KB	Output isn't correct
14	Incorrect	0 ms	348 KB	Output isn't correct
15	Incorrect	0 ms	344 KB	Output isn't correct
16	Correct	0 ms	344 KB	Output is correct
17	Correct	1 ms	352 KB	Output is correct
18	Correct	0 ms	352 KB	Output is correct
19	Correct	0 ms	352 KB	Output is correct
20	Correct	0 ms	356 KB	Output is correct
21	Correct	0 ms	356 KB	Output is correct
22	Correct	0 ms	356 KB	Output is correct
23	Correct	0 ms	356 KB	Output is correct
24	Correct	0 ms	356 KB	Output is correct
25	Correct	0 ms	356 KB	Output is correct
26	Correct	0 ms	356 KB	Output is correct
27	Correct	0 ms	356 KB	Output is correct
28	Correct	0 ms	356 KB	Output is correct
29	Correct	0 ms	352 KB	Output is correct
30	Correct	0 ms	360 KB	Output is correct
31	Correct	0 ms	360 KB	Output is correct
32	Correct	0 ms	360 KB	Output is correct
33	Correct	0 ms	360 KB	Output is correct
34	Correct	0 ms	444 KB	Output is correct
35	Correct	0 ms	360 KB	Output is correct
36	Correct	0 ms	360 KB	Output is correct
37	Correct	0 ms	448 KB	Output is correct
38	Correct	0 ms	352 KB	Output is correct
39	Correct	0 ms	356 KB	Output is correct
40	Correct	0 ms	348 KB	Output is correct
41	Correct	0 ms	348 KB	Output is correct
42	Correct	0 ms	360 KB	Output is correct
43	Correct	0 ms	348 KB	Output is correct
44	Correct	0 ms	348 KB	Output is correct
45	Correct	0 ms	348 KB	Output is correct