Submission #1120187

#	Time	Username	Problem	Language	Result	Execution time	Memory
1120187		vjudge1	Palindrome-Free Numbers (BOI13_numbers)	C++17	54.17 / 100	1099 ms	512 KiB

numbers

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

main() {
    int A, B;
    cin >> A >> B;

    int ans = 0;
    for (int i = A; i <= B; i ++) {
        string S = to_string(i);
        int n = S.size();
        int f = 1;
        if (2 <= n) {
            f = S[1] != S[0];
        }
        for (int j = 2; j < n; j ++) {
            f &= (S[j] != S[j - 1] && S[j] != S[j - 2]);
        }
        if (f) {
            ans ++;
        }
    }

    cout << ans << endl;
}

Compilation message (stderr)

numbers.cpp:4:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    4 | main() {
      | ^~~~

• Subtask 1: 22.5 / 25
• Subtask 2: 31.666666666666668 / 75