#include <bits/stdc++.h>
using namespace std;
typedef unsigned long long ll;
ll memo[19][11][11][2][2];
ll dp(const string& s, int i, int p1, int p2, int tight, int lz)
{
if(i == s.size()) return 1;
ll& res = memo[i][p1][p2][tight][lz];
if(~res) return res;
res = 0;
if(tight) {
if(lz) {
res += dp(s, i + 1, 10, 10, 1, 1);
for(int c = 1; c < 10; ++c) res += dp(s, i + 1, 10, c, 1, 0);
}
else {
for(int c = 0; c < 10; ++c) {
if(c ^ p1 && c ^ p2) {
res += dp(s, i + 1, p2, c, 1, 0);
}
}
}
}
else {
for(int c = 0; c + 48 < s[i]; ++c) {
if(c ^ p1 && c ^ p2) {
res += dp(s, i + 1, p2, c, 1, 0);
}
}
if(s[i] ^ (p1 + 48) && s[i] ^ (p2 + 48)) res += dp(s, i + 1, p2, s[i] - 48, 0, 0);
}
return res;
}
ll calc(ll i)
{
string s = to_string(i);
memset(memo, -1, sizeof(memo));
return dp(s, 0, 10, 10, 0, 1);
}
int main()
{
ios::sync_with_stdio(false); cin.tie(NULL);
ll l, r; cin >> l >> r;
cout << calc(r) - (l ? calc(l - 1) : 0);
return 0;
}
Compilation message
numbers.cpp: In function 'll dp(const string&, int, int, int, int, int)':
numbers.cpp:10:7: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
10 | if(i == s.size()) return 1;
| ~~^~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
332 KB |
Output isn't correct |
| 2 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 3 |
Correct |
1 ms |
332 KB |
Output is correct |
| 4 |
Incorrect |
0 ms |
332 KB |
Output isn't correct |
| 5 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 6 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 7 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 8 |
Incorrect |
0 ms |
332 KB |
Output isn't correct |
| 9 |
Correct |
1 ms |
332 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
332 KB |
Output is correct |
| 12 |
Correct |
1 ms |
332 KB |
Output is correct |
| 13 |
Correct |
1 ms |
332 KB |
Output is correct |
| 14 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 15 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 16 |
Correct |
1 ms |
312 KB |
Output is correct |
| 17 |
Correct |
1 ms |
332 KB |
Output is correct |
| 18 |
Correct |
0 ms |
332 KB |
Output is correct |
| 19 |
Correct |
1 ms |
332 KB |
Output is correct |
| 20 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
332 KB |
Output is correct |
| 2 |
Correct |
1 ms |
332 KB |
Output is correct |
| 3 |
Correct |
1 ms |
332 KB |
Output is correct |
| 4 |
Correct |
1 ms |
332 KB |
Output is correct |
| 5 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Incorrect |
0 ms |
332 KB |
Output isn't correct |
| 8 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 9 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 10 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 11 |
Correct |
1 ms |
312 KB |
Output is correct |
| 12 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 13 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 14 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 15 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 16 |
Correct |
1 ms |
332 KB |
Output is correct |
| 17 |
Correct |
1 ms |
332 KB |
Output is correct |
| 18 |
Correct |
1 ms |
332 KB |
Output is correct |
| 19 |
Correct |
1 ms |
332 KB |
Output is correct |
| 20 |
Correct |
1 ms |
332 KB |
Output is correct |
| 21 |
Correct |
1 ms |
332 KB |
Output is correct |
| 22 |
Correct |
1 ms |
332 KB |
Output is correct |
| 23 |
Correct |
1 ms |
332 KB |
Output is correct |
| 24 |
Correct |
1 ms |
332 KB |
Output is correct |
| 25 |
Correct |
1 ms |
320 KB |
Output is correct |
| 26 |
Correct |
1 ms |
332 KB |
Output is correct |
| 27 |
Correct |
1 ms |
332 KB |
Output is correct |
| 28 |
Correct |
1 ms |
332 KB |
Output is correct |
| 29 |
Correct |
1 ms |
332 KB |
Output is correct |
| 30 |
Correct |
1 ms |
332 KB |
Output is correct |
| 31 |
Correct |
1 ms |
324 KB |
Output is correct |
| 32 |
Correct |
1 ms |
332 KB |
Output is correct |
| 33 |
Correct |
1 ms |
332 KB |
Output is correct |
| 34 |
Correct |
1 ms |
332 KB |
Output is correct |
| 35 |
Correct |
1 ms |
332 KB |
Output is correct |
| 36 |
Correct |
1 ms |
332 KB |
Output is correct |
| 37 |
Correct |
1 ms |
332 KB |
Output is correct |
| 38 |
Correct |
1 ms |
332 KB |
Output is correct |
| 39 |
Correct |
1 ms |
332 KB |
Output is correct |
| 40 |
Correct |
1 ms |
396 KB |
Output is correct |
| 41 |
Correct |
1 ms |
316 KB |
Output is correct |
| 42 |
Correct |
1 ms |
332 KB |
Output is correct |
| 43 |
Correct |
1 ms |
332 KB |
Output is correct |
| 44 |
Correct |
1 ms |
332 KB |
Output is correct |
| 45 |
Correct |
1 ms |
332 KB |
Output is correct |
