#include <bits/stdc++.h>
#define ll long long
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define watch(x) cout << (#x) << " = " << x << '\n'
#define boost ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
using namespace std;
const int LEN = 25;
const int NUMBER_SIZE = 11;
const int WAS_SMALLER = 2;
const int POSITIVE = 2;
ll dp[LEN][NUMBER_SIZE][NUMBER_SIZE][WAS_SMALLER][POSITIVE];
void init() {
for (int i = 0; i < LEN; i++)
for (int pl = 0; pl < NUMBER_SIZE; pl++)
for (int l = 0; l < NUMBER_SIZE; l++)
for (int w = 0; w < WAS_SMALLER; w++)
for (int p = 0; p < POSITIVE; p++)
dp[i][pl][l][w][p] = -1;
}
vector <int> d;
ll get(int pos, int pl, int l, int was, int positive) {
if (pos == d.size())
return dp[pos][pl][l][was][positive] = 1;
if (dp[pos][pl][l][was][positive] != -1)
return dp[pos][pl][l][was][positive];
int mx = d[pos];
if (was)
mx = 9;
ll res = 0;
for (int nxt = 0; nxt <= mx; nxt++) {
if (nxt == pl || nxt == l)
continue;
bool currentSpace = (!nxt && !positive);
res += get(pos + 1, (currentSpace ? 10 : l), (currentSpace ? 10 : nxt), was | (nxt < d[pos]), positive | (nxt > 0));
}
return dp[pos][pl][l][was][positive] = res;
}
ll calc(ll x) {
d.clear();
while (x)
d.push_back(x % 10), x /= 10;
reverse(all(d));
init();
get(0, 10, 10, 0, 0);
return dp[0][10][10][0][0];
}
void solve() {
ll a, b;
cin >> a >> b;
cout << calc(b) - calc(a - 1) << '\n';
}
main() {
boost;
solve();
return 0;
}
Compilation message
numbers.cpp: In function 'long long int get(int, int, int, int, int)':
numbers.cpp:30:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
30 | if (pos == d.size())
| ~~~~^~~~~~~~~~~
numbers.cpp: At global scope:
numbers.cpp:70:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
70 | main() {
| ^~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
0 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 ms |
340 KB |
Output is correct |
| 13 |
Correct |
0 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
1 ms |
364 KB |
Output is correct |
| 16 |
Correct |
0 ms |
340 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
1 ms |
340 KB |
Output is correct |
| 19 |
Correct |
1 ms |
340 KB |
Output is correct |
| 20 |
Correct |
1 ms |
340 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
0 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 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 |
424 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
1 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
1 ms |
340 KB |
Output is correct |
| 19 |
Correct |
1 ms |
340 KB |
Output is correct |
| 20 |
Correct |
1 ms |
340 KB |
Output is correct |
| 21 |
Correct |
1 ms |
340 KB |
Output is correct |
| 22 |
Correct |
1 ms |
340 KB |
Output is correct |
| 23 |
Correct |
1 ms |
340 KB |
Output is correct |
| 24 |
Correct |
1 ms |
340 KB |
Output is correct |
| 25 |
Correct |
1 ms |
340 KB |
Output is correct |
| 26 |
Correct |
1 ms |
340 KB |
Output is correct |
| 27 |
Correct |
1 ms |
340 KB |
Output is correct |
| 28 |
Correct |
1 ms |
340 KB |
Output is correct |
| 29 |
Correct |
1 ms |
340 KB |
Output is correct |
| 30 |
Correct |
1 ms |
340 KB |
Output is correct |
| 31 |
Correct |
0 ms |
340 KB |
Output is correct |
| 32 |
Correct |
1 ms |
340 KB |
Output is correct |
| 33 |
Correct |
1 ms |
340 KB |
Output is correct |
| 34 |
Correct |
1 ms |
340 KB |
Output is correct |
| 35 |
Correct |
1 ms |
340 KB |
Output is correct |
| 36 |
Correct |
1 ms |
340 KB |
Output is correct |
| 37 |
Correct |
1 ms |
340 KB |
Output is correct |
| 38 |
Correct |
1 ms |
340 KB |
Output is correct |
| 39 |
Correct |
1 ms |
340 KB |
Output is correct |
| 40 |
Correct |
1 ms |
348 KB |
Output is correct |
| 41 |
Correct |
1 ms |
352 KB |
Output is correct |
| 42 |
Correct |
1 ms |
352 KB |
Output is correct |
| 43 |
Correct |
1 ms |
424 KB |
Output is correct |
| 44 |
Correct |
1 ms |
352 KB |
Output is correct |
| 45 |
Correct |
1 ms |
352 KB |
Output is correct |
