Submission #900245

# Submission time Handle Problem Language Result Execution time Memory
900245 2024-01-08T01:32:27 Z theghostking Palindrome-Free Numbers (BOI13_numbers) C++17
71.25 / 100
1 ms 600 KB
#include <bits/stdc++.h>
using namespace std;

#define int long long

vector<int> num;

int dp[20][12][12][2];
//pos, last digit, last last digit, tight
//11 -> no digit

int call(int pos, int lst, int lslst, int f){
    if (pos == num.size()){
        return 1;
    }
    if (dp[pos][lst][lslst][f] != -1) return dp[pos][lst][lslst][f];
    int res = 0;
    int lmt = 0;
    if (f == 0){
        lmt = num[pos];
    }
    else{
        lmt = 9;
    }
    for (int dgt = 0; dgt <= lmt; dgt++){
        if (dgt == lst || dgt == lslst) continue;
        int nf = f;
        if (f == 0 && dgt < lmt) nf = 1;
        res += call(pos+1,dgt,lst,nf);
    }
    return dp[pos][lst][lslst][f] = res;
}

int solve(int b){
    num.clear();
    while (b > 0){
        num.push_back(b%10);
        b /= 10;
    }
    reverse(num.begin(),num.end());
    memset(dp,-1,sizeof(dp));
    int res = call(0,11,11,0);
    return res;
}

signed main() {
    int a,b;
    cin >> a >> b;
    if (a != 0){
        cout << solve(b)-solve(a-1);
    }
    else{
        cout << solve(b)+1;
    }
    return 0;
}

Compilation message

numbers.cpp: In function 'long long int call(long long int, long long int, long long int, long long int)':
numbers.cpp:13:13: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |     if (pos == num.size()){
      |         ~~~~^~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Correct 0 ms 348 KB Output is correct
4 Incorrect 0 ms 348 KB Output isn't correct
5 Incorrect 0 ms 348 KB Output isn't correct
6 Incorrect 0 ms 348 KB Output isn't correct
7 Incorrect 1 ms 344 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 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Incorrect 0 ms 348 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 348 KB Output is correct
18 Incorrect 0 ms 348 KB Output isn't correct
19 Correct 0 ms 348 KB Output is correct
20 Incorrect 0 ms 348 KB Output isn't correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Incorrect 1 ms 348 KB Output isn't correct
6 Correct 1 ms 344 KB Output is correct
7 Incorrect 0 ms 348 KB Output isn't correct
8 Incorrect 0 ms 348 KB Output isn't correct
9 Incorrect 1 ms 344 KB Output isn't correct
10 Incorrect 0 ms 348 KB Output isn't correct
11 Correct 0 ms 348 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 348 KB Output isn't correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 600 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 352 KB Output is correct
35 Correct 1 ms 352 KB Output is correct
36 Correct 0 ms 352 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 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 348 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