#include <bits/stdc++.h>
using namespace std;
bool isPalindrome(const string &str) {
string s1 = str.substr(0, str.size() / 2 + str.size() % 2);
string s2 = str.substr(str.size() / 2);
reverse(s2.begin(), s2.end());
return s1 == s2;
}
template <typename func> bool forAll(const string &str, const func &f) {
for (size_t i = 0; i < str.size(); i++) {
for (size_t j = 2; j <= str.size() - i; j++) {
string substr = str.substr(i, j);
if (f(substr)) {
return false;
}
}
}
return true;
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
int a, b, ans = 0;
cin >> a >> b;
for (int i = a; i <= b; i++) {
string str = to_string(i);
if (forAll(str, isPalindrome)) {
ans++;
}
}
cout << ans << '\n';
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
336 KB |
Output is correct |
| 2 |
Correct |
1 ms |
564 KB |
Output is correct |
| 3 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
| 4 |
Correct |
20 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 |
504 KB |
Output is correct |
| 9 |
Correct |
1 ms |
336 KB |
Output is correct |
| 10 |
Correct |
1 ms |
588 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 |
18 ms |
456 KB |
Output is correct |
| 15 |
Correct |
29 ms |
336 KB |
Output is correct |
| 16 |
Correct |
2 ms |
336 KB |
Output is correct |
| 17 |
Correct |
12 ms |
336 KB |
Output is correct |
| 18 |
Correct |
1 ms |
336 KB |
Output is correct |
| 19 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
| 20 |
Correct |
30 ms |
336 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1061 ms |
504 KB |
Time limit exceeded |
| 2 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
| 3 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
| 4 |
Incorrect |
1 ms |
504 KB |
Output isn't correct |
| 5 |
Execution timed out |
1093 ms |
336 KB |
Time limit exceeded |
| 6 |
Execution timed out |
1050 ms |
336 KB |
Time limit exceeded |
| 7 |
Execution timed out |
1047 ms |
336 KB |
Time limit exceeded |
| 8 |
Correct |
750 ms |
436 KB |
Output is correct |
| 9 |
Execution timed out |
1062 ms |
336 KB |
Time limit exceeded |
| 10 |
Execution timed out |
1060 ms |
336 KB |
Time limit exceeded |
| 11 |
Execution timed out |
1043 ms |
336 KB |
Time limit exceeded |
| 12 |
Execution timed out |
1059 ms |
336 KB |
Time limit exceeded |
| 13 |
Execution timed out |
1034 ms |
336 KB |
Time limit exceeded |
| 14 |
Execution timed out |
1084 ms |
500 KB |
Time limit exceeded |
| 15 |
Execution timed out |
1078 ms |
336 KB |
Time limit exceeded |
| 16 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
| 17 |
Correct |
1 ms |
336 KB |
Output is correct |
| 18 |
Correct |
1 ms |
336 KB |
Output is correct |
| 19 |
Correct |
1 ms |
336 KB |
Output is correct |
| 20 |
Correct |
1 ms |
336 KB |
Output is correct |
| 21 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
| 22 |
Correct |
1 ms |
336 KB |
Output is correct |
| 23 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
| 24 |
Correct |
1 ms |
336 KB |
Output is correct |
| 25 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
| 26 |
Incorrect |
1 ms |
508 KB |
Output isn't correct |
| 27 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
| 28 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
| 29 |
Correct |
1 ms |
336 KB |
Output is correct |
| 30 |
Correct |
1 ms |
336 KB |
Output is correct |
| 31 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
| 32 |
Correct |
1 ms |
336 KB |
Output is correct |
| 33 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
| 34 |
Correct |
1 ms |
336 KB |
Output is correct |
| 35 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
| 36 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
| 37 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 38 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
| 39 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 40 |
Correct |
1 ms |
348 KB |
Output is correct |
| 41 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
| 42 |
Correct |
1 ms |
336 KB |
Output is correct |
| 43 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
| 44 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
| 45 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
