#include <cstdio>
#include <algorithm>
#define ll long long
using namespace std;
ll dp[20][12][12];
int N;
ll kat(int st){
for(int c = st+1 ; c <= N ; c++)
for(int d = 0 ; d < 10 ; d++)
for(int e = 0 ; e <= 10 ; e++)
for(int f = 0 ; f <= 10 ; f++)
if(d != e and d != f)
dp[c][f][(f==10 and d==0)?10:d] += dp[c-1][e][f];
ll ret = 0;
for(int c = 0 ; c <= 10 ; c++)
for(int d = 0 ; d <= 10 ; d++)
ret += dp[N][c][d];
return ret;
}
ll solv(ll x){
// printf(":%d\n",x);
if(x == -1)return 0;
if(x == 0)return 1;
ll ret = 0;
char a[20];
N = -1;
while(x > 0)
a[++N] = x%10, x /= 10;
a[N+1] = 10, a[N+2] = 11;
for(int c = N, st = 0 ; c >= 0 ; c--, st++){
for(int d = 0 ; d <= N ; d++)
for(int e = 0 ; e <= 11 ; e++)
for(int f = 0 ; f <= 11 ; f++)
dp[d][e][f] = 0;
for(int d = 0 ; d < a[c] ; d++)
if(d != a[c+1] and d != a[c+2])
dp[st][a[c+1]][(c == N and d==0)?10:d] = 1;
ret += kat(st);
// printf("%d %d %d :%lld\n",st,a[c+1],a[c],ret);
if(a[c] == a[c+1] or a[c] == a[c+2])
break;
}
// printf("------------\n");
bool ok = true;
for(int c = N ; c >= 0 ; c--)
if(a[c] == a[c+1] or a[c] == a[c+2])
ok = false;
if(ok and N >= 0)
ret++;
return ret;
}
int main(){
ll a,b;
scanf("%lld %lld",&a,&b);
// printf("%lld=%lld, %lld=%lld\n",a,solv(a),b,solv(b));
printf("%lld\n",solv(b)-solv(a-1));
}
Compilation message
numbers.cpp: In function 'long long int solv(long long int)':
numbers.cpp:43:14: warning: array subscript has type 'char' [-Wchar-subscripts]
43 | dp[st][a[c+1]][(c == N and d==0)?10:d] = 1;
| ~~~~~^
numbers.cpp: In function 'int main()':
numbers.cpp:62:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
62 | scanf("%lld %lld",&a,&b);
| ~~~~~^~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
1 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
1 ms |
296 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
212 KB |
Output is correct |
| 12 |
Correct |
1 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
288 KB |
Output is correct |
| 14 |
Correct |
1 ms |
284 KB |
Output is correct |
| 15 |
Correct |
0 ms |
212 KB |
Output is correct |
| 16 |
Correct |
1 ms |
212 KB |
Output is correct |
| 17 |
Correct |
1 ms |
288 KB |
Output is correct |
| 18 |
Correct |
1 ms |
292 KB |
Output is correct |
| 19 |
Correct |
1 ms |
212 KB |
Output is correct |
| 20 |
Correct |
1 ms |
288 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
300 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
2 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 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 |
212 KB |
Output is correct |
| 12 |
Correct |
1 ms |
212 KB |
Output is correct |
| 13 |
Correct |
1 ms |
212 KB |
Output is correct |
| 14 |
Correct |
1 ms |
292 KB |
Output is correct |
| 15 |
Correct |
1 ms |
292 KB |
Output is correct |
| 16 |
Correct |
1 ms |
212 KB |
Output is correct |
| 17 |
Correct |
1 ms |
212 KB |
Output is correct |
| 18 |
Correct |
1 ms |
212 KB |
Output is correct |
| 19 |
Correct |
1 ms |
212 KB |
Output is correct |
| 20 |
Correct |
2 ms |
212 KB |
Output is correct |
| 21 |
Correct |
1 ms |
212 KB |
Output is correct |
| 22 |
Correct |
1 ms |
212 KB |
Output is correct |
| 23 |
Correct |
1 ms |
296 KB |
Output is correct |
| 24 |
Correct |
1 ms |
212 KB |
Output is correct |
| 25 |
Correct |
1 ms |
212 KB |
Output is correct |
| 26 |
Correct |
1 ms |
212 KB |
Output is correct |
| 27 |
Correct |
1 ms |
212 KB |
Output is correct |
| 28 |
Correct |
1 ms |
292 KB |
Output is correct |
| 29 |
Correct |
1 ms |
212 KB |
Output is correct |
| 30 |
Correct |
1 ms |
212 KB |
Output is correct |
| 31 |
Correct |
1 ms |
212 KB |
Output is correct |
| 32 |
Correct |
1 ms |
212 KB |
Output is correct |
| 33 |
Correct |
1 ms |
212 KB |
Output is correct |
| 34 |
Correct |
1 ms |
212 KB |
Output is correct |
| 35 |
Correct |
1 ms |
212 KB |
Output is correct |
| 36 |
Correct |
1 ms |
212 KB |
Output is correct |
| 37 |
Correct |
2 ms |
212 KB |
Output is correct |
| 38 |
Correct |
1 ms |
212 KB |
Output is correct |
| 39 |
Correct |
1 ms |
288 KB |
Output is correct |
| 40 |
Correct |
1 ms |
212 KB |
Output is correct |
| 41 |
Correct |
1 ms |
212 KB |
Output is correct |
| 42 |
Correct |
1 ms |
292 KB |
Output is correct |
| 43 |
Correct |
1 ms |
212 KB |
Output is correct |
| 44 |
Correct |
1 ms |
212 KB |
Output is correct |
| 45 |
Correct |
1 ms |
212 KB |
Output is correct |
