#include<bits/stdc++.h>
using namespace std ;
typedef long long ll ;
typedef unsigned long long ull ;
#define fi first
#define se second
// mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
vector < int > v ;
ll dp[ 22 ][ 123 ][ 2 ] ;
ll f ( ll up ) {
v.clear ( ) ;
while ( up > 0 ) {
v.push_back ( up % 10 ) ;
up /= 10 ;
}
reverse ( v.begin ( ) , v.end ( ) ) ;
int n = v.size ( ) ;
for ( int i = 0 ; i <= n ; ++ i ) {
for ( int j = 0 ; j <= 121 ; ++ j ) {
for ( int t = 0 ; t < 2 ; ++ t ) {
dp[ i ][ j ][ t ] = 0 ;
}
}
}
dp[ 0 ][ 120 ][ 1 ] = 1 ;
for ( int i = 0 ; i < n ; ++ i ) {
for ( int j = 0 ; j <= 120 ; ++ j ) {
int x = ( j / 11 ) , y = ( j % 11 ) ;
for ( int t = 0 ; t < 2 ; ++ t ) {
if ( dp[ i ][ j ][ t ] == 0 ) { continue ; }
for ( int z = 0 ; z <= 10 ; ++ z ) {
if ( z == 10 ) {
if ( y != 10 ) { continue ; }
dp[ i + 1 ][ j ][ 0 ] += dp[ i ][ j ][ t ] ;
}
else {
if ( z == 0 && y == 10 ) { continue ; }
if ( t == 1 && z > v[ i ] ) { continue ; }
int nwt = t ;
if ( z < v[ i ] ) { nwt = 0 ; }
if ( z == x || z == y ) { continue ; }
int nwj = z + 11 * y ;
dp[ i + 1 ][ nwj ][ nwt ] += dp[ i ][ j ][ t ] ;
}
}
}
}
}
ll ret = 0 ;
for ( int i = 0 ; i <= 120 ; ++ i ) {
ret += dp[ n ][ i ][ 0 ] + dp[ n ][ i ][ 1 ] ;
}
return ret ;
}
void solve ( ) {
ll l , r ;
cin >> l >> r ;
cout << f ( r ) - f ( l - 1 ) << "\n" ;
}
int main ( ) {
ios_base :: sync_with_stdio ( false ) ;
cin.tie ( NULL ) ;
int t = 1 ; // cin >> t ;
while ( t -- ) { solve ( ) ; }
return 0 ;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
324 KB |
Output is correct |
| 3 |
Correct |
1 ms |
340 KB |
Output is correct |
| 4 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 5 |
Correct |
1 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
1 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
212 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 15 |
Correct |
0 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| 17 |
Correct |
1 ms |
212 KB |
Output is correct |
| 18 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 19 |
Correct |
0 ms |
340 KB |
Output is correct |
| 20 |
Correct |
0 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 |
324 KB |
Output is correct |
| 4 |
Correct |
1 ms |
324 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
0 ms |
332 KB |
Output is correct |
| 8 |
Correct |
0 ms |
340 KB |
Output is correct |
| 9 |
Correct |
0 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
324 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
324 KB |
Output is correct |
| 13 |
Correct |
0 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
328 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 |
328 KB |
Output is correct |
| 28 |
Correct |
1 ms |
324 KB |
Output is correct |
| 29 |
Correct |
1 ms |
328 KB |
Output is correct |
| 30 |
Correct |
1 ms |
340 KB |
Output is correct |
| 31 |
Correct |
1 ms |
340 KB |
Output is correct |
| 32 |
Correct |
1 ms |
340 KB |
Output is correct |
| 33 |
Correct |
1 ms |
324 KB |
Output is correct |
| 34 |
Correct |
1 ms |
340 KB |
Output is correct |
| 35 |
Correct |
1 ms |
328 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 |
328 KB |
Output is correct |
| 40 |
Correct |
1 ms |
324 KB |
Output is correct |
| 41 |
Correct |
1 ms |
340 KB |
Output is correct |
| 42 |
Correct |
1 ms |
340 KB |
Output is correct |
| 43 |
Correct |
1 ms |
340 KB |
Output is correct |
| 44 |
Correct |
1 ms |
324 KB |
Output is correct |
| 45 |
Correct |
1 ms |
324 KB |
Output is correct |
