#include<bits/stdc++.h>
#define ll long long
using namespace std;
ll dp[19][11][11][2]={};
int len;
int ar[19];
ll DP(int pos,int m1,int m2,int sm) {
ll &ret=dp[pos][m1+1][m2+1][sm];
if(len==pos) {
ret=1;
return 1;
}
ret=0;
int mx=sm?9:ar[pos];
for(int i=0;i<mx;i++) {
if(i!=m1&&i!=m2)
ret+=DP(pos+1,m2,i,1);
}
if(mx!=m2 && mx!=m1)
ret+=DP(pos+1,m2,mx,sm);
return ret;
}
ll calc(ll a) {
if(a<=9)return a+1;
memset(dp,-1,sizeof dp);
len=0;
while(a) {
ar[len++]=a%10;
a/=10;
}
reverse(ar,ar+len);
ll res=DP(0,0,-1,0);
for(int i=1;i<=len;i++)res+=DP(i,0,-1,1);
return res;
}
int main() {
ll a,b;
cin>>a>>b;
if(a<b)
swap(a,b);
ll pd=calc(a)-calc(b-1);
cout<<pd<<endl;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
5 ms |
384 KB |
Output is correct |
| 3 |
Execution timed out |
1095 ms |
384 KB |
Time limit exceeded |
| 4 |
Correct |
5 ms |
384 KB |
Output is correct |
| 5 |
Correct |
6 ms |
384 KB |
Output is correct |
| 6 |
Correct |
5 ms |
384 KB |
Output is correct |
| 7 |
Correct |
5 ms |
384 KB |
Output is correct |
| 8 |
Correct |
5 ms |
384 KB |
Output is correct |
| 9 |
Correct |
5 ms |
384 KB |
Output is correct |
| 10 |
Correct |
5 ms |
384 KB |
Output is correct |
| 11 |
Correct |
5 ms |
384 KB |
Output is correct |
| 12 |
Correct |
5 ms |
384 KB |
Output is correct |
| 13 |
Correct |
5 ms |
384 KB |
Output is correct |
| 14 |
Correct |
6 ms |
384 KB |
Output is correct |
| 15 |
Correct |
5 ms |
384 KB |
Output is correct |
| 16 |
Correct |
14 ms |
384 KB |
Output is correct |
| 17 |
Correct |
11 ms |
384 KB |
Output is correct |
| 18 |
Correct |
5 ms |
256 KB |
Output is correct |
| 19 |
Execution timed out |
1087 ms |
384 KB |
Time limit exceeded |
| 20 |
Correct |
6 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
813 ms |
404 KB |
Output is correct |
| 2 |
Execution timed out |
1096 ms |
384 KB |
Time limit exceeded |
| 3 |
Execution timed out |
1093 ms |
384 KB |
Time limit exceeded |
| 4 |
Execution timed out |
1090 ms |
384 KB |
Time limit exceeded |
| 5 |
Correct |
278 ms |
384 KB |
Output is correct |
| 6 |
Execution timed out |
1020 ms |
504 KB |
Time limit exceeded |
| 7 |
Correct |
20 ms |
384 KB |
Output is correct |
| 8 |
Correct |
18 ms |
512 KB |
Output is correct |
| 9 |
Correct |
25 ms |
360 KB |
Output is correct |
| 10 |
Correct |
31 ms |
384 KB |
Output is correct |
| 11 |
Correct |
779 ms |
384 KB |
Output is correct |
| 12 |
Correct |
170 ms |
384 KB |
Output is correct |
| 13 |
Correct |
45 ms |
384 KB |
Output is correct |
| 14 |
Correct |
284 ms |
504 KB |
Output is correct |
| 15 |
Correct |
326 ms |
384 KB |
Output is correct |
| 16 |
Execution timed out |
1090 ms |
384 KB |
Time limit exceeded |
| 17 |
Execution timed out |
1085 ms |
384 KB |
Time limit exceeded |
| 18 |
Execution timed out |
1089 ms |
384 KB |
Time limit exceeded |
| 19 |
Execution timed out |
1095 ms |
384 KB |
Time limit exceeded |
| 20 |
Execution timed out |
1095 ms |
384 KB |
Time limit exceeded |
| 21 |
Execution timed out |
1092 ms |
384 KB |
Time limit exceeded |
| 22 |
Execution timed out |
1090 ms |
384 KB |
Time limit exceeded |
| 23 |
Execution timed out |
1089 ms |
384 KB |
Time limit exceeded |
| 24 |
Execution timed out |
1093 ms |
384 KB |
Time limit exceeded |
| 25 |
Execution timed out |
1096 ms |
384 KB |
Time limit exceeded |
| 26 |
Execution timed out |
1098 ms |
384 KB |
Time limit exceeded |
| 27 |
Execution timed out |
1092 ms |
384 KB |
Time limit exceeded |
| 28 |
Execution timed out |
1095 ms |
384 KB |
Time limit exceeded |
| 29 |
Execution timed out |
1097 ms |
372 KB |
Time limit exceeded |
| 30 |
Execution timed out |
1097 ms |
384 KB |
Time limit exceeded |
| 31 |
Execution timed out |
1099 ms |
384 KB |
Time limit exceeded |
| 32 |
Execution timed out |
1093 ms |
384 KB |
Time limit exceeded |
| 33 |
Execution timed out |
1083 ms |
384 KB |
Time limit exceeded |
| 34 |
Execution timed out |
1096 ms |
384 KB |
Time limit exceeded |
| 35 |
Execution timed out |
1078 ms |
384 KB |
Time limit exceeded |
| 36 |
Execution timed out |
1095 ms |
384 KB |
Time limit exceeded |
| 37 |
Execution timed out |
1094 ms |
384 KB |
Time limit exceeded |
| 38 |
Execution timed out |
1096 ms |
384 KB |
Time limit exceeded |
| 39 |
Execution timed out |
1091 ms |
384 KB |
Time limit exceeded |
| 40 |
Execution timed out |
1091 ms |
384 KB |
Time limit exceeded |
| 41 |
Execution timed out |
1087 ms |
384 KB |
Time limit exceeded |
| 42 |
Execution timed out |
1092 ms |
384 KB |
Time limit exceeded |
| 43 |
Execution timed out |
1086 ms |
384 KB |
Time limit exceeded |
| 44 |
Execution timed out |
1083 ms |
384 KB |
Time limit exceeded |
| 45 |
Execution timed out |
1096 ms |
384 KB |
Time limit exceeded |
