#include <bits/stdc++.h>
using namespace std;
int A[20], B[20];
long long f[20][11][11][2][2][2];
long long calc(int p, int prv1, int prv2, bool oka, bool okb, bool nonzero) {
long long &ret = f[p][prv1][prv2][oka][okb][nonzero];
if (ret != -1) return ret;
if (p == 18) return 1;
ret = 0;
int l, r;
l = 0, r = 9;
if (!oka) l = A[p];
if (!okb) r = B[p];
for (int i = l; i <= r; ++i) {
if (i == prv1 || i == prv2) continue;
if (!i && !nonzero) {
ret += calc(p + 1, 10, 10, oka | (i > l), okb | (i < r), 0);
}
else {
ret += calc(p + 1, i, prv1, oka | (i > l), okb | (i < r), 1);
}
}
return ret;
}
int main() {
ios::sync_with_stdio(false);
long long a, b; cin >> a >> b;
for (int i = 0; i < 18; ++i) A[17 - i] = a % 10, a /= 10;
for (int i = 0; i < 18; ++i) B[17 - i] = b % 10, b /= 10;
memset(f, -1, sizeof f);
cout << calc(0, 10, 10, 0, 0, 0);
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
504 KB |
Output is correct |
| 2 |
Correct |
2 ms |
616 KB |
Output is correct |
| 3 |
Correct |
3 ms |
616 KB |
Output is correct |
| 4 |
Correct |
3 ms |
628 KB |
Output is correct |
| 5 |
Correct |
3 ms |
676 KB |
Output is correct |
| 6 |
Correct |
2 ms |
708 KB |
Output is correct |
| 7 |
Correct |
2 ms |
748 KB |
Output is correct |
| 8 |
Correct |
3 ms |
896 KB |
Output is correct |
| 9 |
Correct |
3 ms |
896 KB |
Output is correct |
| 10 |
Correct |
2 ms |
896 KB |
Output is correct |
| 11 |
Correct |
2 ms |
896 KB |
Output is correct |
| 12 |
Correct |
2 ms |
896 KB |
Output is correct |
| 13 |
Correct |
2 ms |
896 KB |
Output is correct |
| 14 |
Correct |
2 ms |
896 KB |
Output is correct |
| 15 |
Correct |
2 ms |
896 KB |
Output is correct |
| 16 |
Correct |
2 ms |
896 KB |
Output is correct |
| 17 |
Correct |
2 ms |
896 KB |
Output is correct |
| 18 |
Correct |
2 ms |
896 KB |
Output is correct |
| 19 |
Correct |
2 ms |
896 KB |
Output is correct |
| 20 |
Correct |
2 ms |
896 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
896 KB |
Output is correct |
| 2 |
Correct |
3 ms |
896 KB |
Output is correct |
| 3 |
Correct |
3 ms |
896 KB |
Output is correct |
| 4 |
Correct |
2 ms |
896 KB |
Output is correct |
| 5 |
Correct |
2 ms |
960 KB |
Output is correct |
| 6 |
Correct |
3 ms |
960 KB |
Output is correct |
| 7 |
Correct |
3 ms |
960 KB |
Output is correct |
| 8 |
Correct |
3 ms |
960 KB |
Output is correct |
| 9 |
Correct |
2 ms |
976 KB |
Output is correct |
| 10 |
Correct |
3 ms |
976 KB |
Output is correct |
| 11 |
Correct |
3 ms |
976 KB |
Output is correct |
| 12 |
Correct |
2 ms |
976 KB |
Output is correct |
| 13 |
Correct |
2 ms |
992 KB |
Output is correct |
| 14 |
Correct |
2 ms |
992 KB |
Output is correct |
| 15 |
Correct |
2 ms |
992 KB |
Output is correct |
| 16 |
Correct |
2 ms |
992 KB |
Output is correct |
| 17 |
Correct |
2 ms |
992 KB |
Output is correct |
| 18 |
Correct |
3 ms |
992 KB |
Output is correct |
| 19 |
Correct |
2 ms |
992 KB |
Output is correct |
| 20 |
Correct |
3 ms |
992 KB |
Output is correct |
| 21 |
Correct |
2 ms |
996 KB |
Output is correct |
| 22 |
Correct |
2 ms |
996 KB |
Output is correct |
| 23 |
Correct |
3 ms |
996 KB |
Output is correct |
| 24 |
Correct |
2 ms |
996 KB |
Output is correct |
| 25 |
Correct |
2 ms |
996 KB |
Output is correct |
| 26 |
Correct |
2 ms |
996 KB |
Output is correct |
| 27 |
Correct |
3 ms |
996 KB |
Output is correct |
| 28 |
Correct |
2 ms |
996 KB |
Output is correct |
| 29 |
Correct |
3 ms |
996 KB |
Output is correct |
| 30 |
Correct |
2 ms |
996 KB |
Output is correct |
| 31 |
Correct |
2 ms |
996 KB |
Output is correct |
| 32 |
Correct |
3 ms |
996 KB |
Output is correct |
| 33 |
Correct |
3 ms |
996 KB |
Output is correct |
| 34 |
Correct |
3 ms |
996 KB |
Output is correct |
| 35 |
Correct |
3 ms |
996 KB |
Output is correct |
| 36 |
Correct |
3 ms |
996 KB |
Output is correct |
| 37 |
Correct |
3 ms |
996 KB |
Output is correct |
| 38 |
Correct |
3 ms |
1000 KB |
Output is correct |
| 39 |
Correct |
3 ms |
1004 KB |
Output is correct |
| 40 |
Correct |
3 ms |
1008 KB |
Output is correct |
| 41 |
Correct |
3 ms |
1012 KB |
Output is correct |
| 42 |
Correct |
3 ms |
1016 KB |
Output is correct |
| 43 |
Correct |
2 ms |
1020 KB |
Output is correct |
| 44 |
Correct |
3 ms |
1024 KB |
Output is correct |
| 45 |
Correct |
2 ms |
1028 KB |
Output is correct |
