#include <bits/stdc++.h>
// #include <iostream>
#define pb push_back
#define s second
#define f first
#define ll long long
#define int ll
using namespace std;
string str;
int dp[15][15][25][5],SIZE;
int get(int last2,int last,int len,int sm){
if (len >= SIZE) return 1;
if (dp[last2][last][len][sm] != -1)
return dp[last2][last][len][sm];
int l = str[len] - '0',sum = 0;
if (sm){
for (int i = 0; i <= 9; i++){
if (i != last && i != last2)
sum += get(last,i,len + 1,1);
}
}
else{
for (int i = 0; i < l; i++){
if (i != last && i != last2)
sum += get(last,i,len + 1,1);
}
if (l != last && l != last2)
sum += get(last,l,len + 1,0);
}
return dp[last2][last][len][sm] = sum;
}
void clear(){
for (int i = 0; i <= 9; i++)
for (int j = 0; j <= 9; j++)
for (int z = 0; z<=20; z++)
dp[i][j][z][0] = dp[i][j][z][1] = -1;
}
int G(int x){
if (x <= 0) return 0;
clear();
str = "";
while(x){
str+=(x%10)+'0';
x/=10;
}
reverse(str.begin(),str.end());
int l = str[0] - '0',ans = 0;
SIZE = str.size();
for (int i = 1; i < l; i++)
ans += get(i,i,1,1);
ans += get(l,l,1,0);
SIZE = str.size() - 1;
for (int j = 1; j <= 9; j++)
ans += get(j,j,1,1);
return ans;
}
signed main (){
ios_base::sync_with_stdio(0),cin.tie(NULL),cout.tie(NULL);
// freopen("output.txt", "w", stdout);
ll a,b;
cin>>a>>b;
// cout<<G(a - 1)<<" "<<G(b)<<endl;
cout<<G(b) - G(a - 1)<<"\n";
}
| # |
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 |
Correct |
0 ms |
332 KB |
Output is correct |
| 6 |
Incorrect |
0 ms |
332 KB |
Output isn't correct |
| 7 |
Incorrect |
0 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 |
Incorrect |
0 ms |
332 KB |
Output isn't correct |
| 12 |
Incorrect |
0 ms |
332 KB |
Output isn't correct |
| 13 |
Incorrect |
0 ms |
332 KB |
Output isn't correct |
| 14 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 15 |
Incorrect |
0 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 |
Incorrect |
0 ms |
204 KB |
Output isn't correct |
| 19 |
Correct |
1 ms |
332 KB |
Output is correct |
| 20 |
Incorrect |
0 ms |
332 KB |
Output isn't correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
332 KB |
Output is correct |
| 2 |
Correct |
0 ms |
332 KB |
Output is correct |
| 3 |
Correct |
1 ms |
332 KB |
Output is correct |
| 4 |
Correct |
0 ms |
332 KB |
Output is correct |
| 5 |
Incorrect |
0 ms |
332 KB |
Output isn't correct |
| 6 |
Correct |
0 ms |
332 KB |
Output is correct |
| 7 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 8 |
Incorrect |
0 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 |
0 ms |
332 KB |
Output is correct |
| 12 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 13 |
Incorrect |
0 ms |
332 KB |
Output isn't correct |
| 14 |
Incorrect |
0 ms |
332 KB |
Output isn't correct |
| 15 |
Incorrect |
0 ms |
332 KB |
Output isn't correct |
| 16 |
Correct |
0 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 |
332 KB |
Output is correct |
| 26 |
Correct |
0 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 |
332 KB |
Output is correct |
| 32 |
Correct |
0 ms |
332 KB |
Output is correct |
| 33 |
Correct |
0 ms |
332 KB |
Output is correct |
| 34 |
Correct |
1 ms |
332 KB |
Output is correct |
| 35 |
Correct |
0 ms |
336 KB |
Output is correct |
| 36 |
Correct |
1 ms |
336 KB |
Output is correct |
| 37 |
Correct |
1 ms |
336 KB |
Output is correct |
| 38 |
Correct |
1 ms |
336 KB |
Output is correct |
| 39 |
Correct |
1 ms |
340 KB |
Output is correct |
| 40 |
Correct |
0 ms |
340 KB |
Output is correct |
| 41 |
Correct |
1 ms |
404 KB |
Output is correct |
| 42 |
Correct |
1 ms |
340 KB |
Output is correct |
| 43 |
Correct |
0 ms |
340 KB |
Output is correct |
| 44 |
Correct |
0 ms |
340 KB |
Output is correct |
| 45 |
Correct |
1 ms |
340 KB |
Output is correct |
