#include <bits/stdc++.h>
using namespace std;
int v[20];
int64_t f[20][2][2][11][11];
int64_t DP(int i, int lo, int iz, int prv, int prv2) {
if (i == 20) return 1;
int64_t& res = f[i][lo][iz][prv + 1][prv2 + 1];
if (lo && res != -1) return res;
int lim = lo ? 9 : v[i];
int64_t ans = 0;
for (int d = 0; d <= lim; d++) {
int niz = iz || (d > 0);
if (d != prv2 && d != prv) ans += DP(i + 1, lo || (d < lim), niz, niz ? d : -1, prv);
}
if (!lo) res = ans;
return ans;
}
int64_t solve(int64_t x) {
for (int i = 19; i >= 0; i--) v[i] = x % 10, x /= 10;
return DP(0, 0, 0, -1, -1);
}
int32_t main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
int64_t a, b;
cin >> a >> b;
a--;
memset(f, -1, sizeof f);
cout << solve(b) - solve(a);
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
304 KB |
Output is correct |
| 2 |
Correct |
0 ms |
324 KB |
Output is correct |
| 3 |
Execution timed out |
1089 ms |
324 KB |
Time limit exceeded |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
372 KB |
Output is correct |
| 7 |
Correct |
0 ms |
340 KB |
Output is correct |
| 8 |
Correct |
0 ms |
340 KB |
Output is correct |
| 9 |
Correct |
0 ms |
340 KB |
Output is correct |
| 10 |
Correct |
0 ms |
320 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
316 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
1 ms |
340 KB |
Output is correct |
| 16 |
Correct |
4 ms |
340 KB |
Output is correct |
| 17 |
Correct |
3 ms |
324 KB |
Output is correct |
| 18 |
Correct |
0 ms |
340 KB |
Output is correct |
| 19 |
Execution timed out |
1081 ms |
328 KB |
Time limit exceeded |
| 20 |
Correct |
1 ms |
340 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
294 ms |
372 KB |
Output is correct |
| 2 |
Execution timed out |
1079 ms |
340 KB |
Time limit exceeded |
| 3 |
Execution timed out |
1084 ms |
340 KB |
Time limit exceeded |
| 4 |
Execution timed out |
1079 ms |
340 KB |
Time limit exceeded |
| 5 |
Correct |
92 ms |
324 KB |
Output is correct |
| 6 |
Correct |
355 ms |
384 KB |
Output is correct |
| 7 |
Correct |
6 ms |
340 KB |
Output is correct |
| 8 |
Correct |
4 ms |
320 KB |
Output is correct |
| 9 |
Correct |
7 ms |
340 KB |
Output is correct |
| 10 |
Correct |
9 ms |
324 KB |
Output is correct |
| 11 |
Correct |
262 ms |
376 KB |
Output is correct |
| 12 |
Correct |
57 ms |
376 KB |
Output is correct |
| 13 |
Correct |
15 ms |
396 KB |
Output is correct |
| 14 |
Correct |
92 ms |
320 KB |
Output is correct |
| 15 |
Correct |
106 ms |
380 KB |
Output is correct |
| 16 |
Execution timed out |
1071 ms |
340 KB |
Time limit exceeded |
| 17 |
Execution timed out |
1082 ms |
340 KB |
Time limit exceeded |
| 18 |
Execution timed out |
1074 ms |
340 KB |
Time limit exceeded |
| 19 |
Execution timed out |
1079 ms |
324 KB |
Time limit exceeded |
| 20 |
Execution timed out |
1070 ms |
340 KB |
Time limit exceeded |
| 21 |
Execution timed out |
1076 ms |
340 KB |
Time limit exceeded |
| 22 |
Execution timed out |
1079 ms |
340 KB |
Time limit exceeded |
| 23 |
Execution timed out |
1077 ms |
340 KB |
Time limit exceeded |
| 24 |
Execution timed out |
1073 ms |
340 KB |
Time limit exceeded |
| 25 |
Execution timed out |
1075 ms |
340 KB |
Time limit exceeded |
| 26 |
Execution timed out |
1063 ms |
340 KB |
Time limit exceeded |
| 27 |
Execution timed out |
1084 ms |
340 KB |
Time limit exceeded |
| 28 |
Execution timed out |
1073 ms |
340 KB |
Time limit exceeded |
| 29 |
Execution timed out |
1083 ms |
340 KB |
Time limit exceeded |
| 30 |
Execution timed out |
1075 ms |
340 KB |
Time limit exceeded |
| 31 |
Execution timed out |
1069 ms |
340 KB |
Time limit exceeded |
| 32 |
Execution timed out |
1033 ms |
340 KB |
Time limit exceeded |
| 33 |
Execution timed out |
1081 ms |
340 KB |
Time limit exceeded |
| 34 |
Execution timed out |
1076 ms |
340 KB |
Time limit exceeded |
| 35 |
Execution timed out |
1092 ms |
340 KB |
Time limit exceeded |
| 36 |
Execution timed out |
1077 ms |
340 KB |
Time limit exceeded |
| 37 |
Execution timed out |
1050 ms |
340 KB |
Time limit exceeded |
| 38 |
Execution timed out |
1088 ms |
340 KB |
Time limit exceeded |
| 39 |
Execution timed out |
1069 ms |
340 KB |
Time limit exceeded |
| 40 |
Execution timed out |
1063 ms |
340 KB |
Time limit exceeded |
| 41 |
Execution timed out |
1081 ms |
340 KB |
Time limit exceeded |
| 42 |
Execution timed out |
1078 ms |
340 KB |
Time limit exceeded |
| 43 |
Execution timed out |
1070 ms |
332 KB |
Time limit exceeded |
| 44 |
Execution timed out |
1069 ms |
340 KB |
Time limit exceeded |
| 45 |
Execution timed out |
1077 ms |
340 KB |
Time limit exceeded |
