#include<bits/stdc++.h>
using namespace std;
#define int long long
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define sz(x) ((int)x.size())
#define sumof(x) accumulate(all(x), 0ll)
int f[20][2][20][100];
int sus(const string &s, int id, bool smaller, int dig, int lst){
if (f[id][smaller][dig][lst]!=-1) return f[id][smaller][dig][lst];
if (id==sz(s)) return f[id][smaller][dig][lst]=1;
int res=0;
for (int i=0; i<=(smaller?9:s[id]-'0'); ++i){
if (dig && i==lst%10) continue;
if (dig>=2 && i==lst/10) continue;
res+=sus(s, id+1, smaller|(i<s[id]-'0'), dig+(dig || i), (lst%10)*10+i);
}
return f[id][smaller][dig][lst]=res;
}
int calc(int x){
if (x<0) return 0;
stringstream ss; string s;
ss << x; ss >> s;
memset(f, -1, sizeof f);
return sus(s, 0, 0, 0, 0);
}
void solve(int tc){
// cout << "Case #" << tc << ": ";
int l, r; cin >> l >> r;
cout << calc(r)-calc(l-1);
}
int32_t main(){
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int ntests=1;
// cin >> ntests;
for (int i=1; i<=ntests; ++i) solve(i);
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
852 KB |
Output is correct |
| 2 |
Correct |
1 ms |
852 KB |
Output is correct |
| 3 |
Correct |
1 ms |
852 KB |
Output is correct |
| 4 |
Correct |
1 ms |
844 KB |
Output is correct |
| 5 |
Correct |
1 ms |
908 KB |
Output is correct |
| 6 |
Correct |
1 ms |
844 KB |
Output is correct |
| 7 |
Correct |
1 ms |
852 KB |
Output is correct |
| 8 |
Correct |
1 ms |
852 KB |
Output is correct |
| 9 |
Correct |
1 ms |
852 KB |
Output is correct |
| 10 |
Correct |
1 ms |
852 KB |
Output is correct |
| 11 |
Correct |
1 ms |
852 KB |
Output is correct |
| 12 |
Correct |
1 ms |
852 KB |
Output is correct |
| 13 |
Correct |
1 ms |
852 KB |
Output is correct |
| 14 |
Correct |
1 ms |
852 KB |
Output is correct |
| 15 |
Correct |
1 ms |
852 KB |
Output is correct |
| 16 |
Correct |
1 ms |
852 KB |
Output is correct |
| 17 |
Correct |
1 ms |
852 KB |
Output is correct |
| 18 |
Correct |
1 ms |
852 KB |
Output is correct |
| 19 |
Correct |
2 ms |
840 KB |
Output is correct |
| 20 |
Correct |
1 ms |
852 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
852 KB |
Output is correct |
| 2 |
Correct |
2 ms |
852 KB |
Output is correct |
| 3 |
Correct |
2 ms |
852 KB |
Output is correct |
| 4 |
Correct |
2 ms |
852 KB |
Output is correct |
| 5 |
Correct |
1 ms |
852 KB |
Output is correct |
| 6 |
Correct |
1 ms |
852 KB |
Output is correct |
| 7 |
Correct |
1 ms |
852 KB |
Output is correct |
| 8 |
Correct |
1 ms |
840 KB |
Output is correct |
| 9 |
Correct |
1 ms |
852 KB |
Output is correct |
| 10 |
Correct |
1 ms |
840 KB |
Output is correct |
| 11 |
Correct |
1 ms |
852 KB |
Output is correct |
| 12 |
Correct |
1 ms |
840 KB |
Output is correct |
| 13 |
Correct |
1 ms |
840 KB |
Output is correct |
| 14 |
Correct |
1 ms |
852 KB |
Output is correct |
| 15 |
Correct |
1 ms |
852 KB |
Output is correct |
| 16 |
Correct |
2 ms |
852 KB |
Output is correct |
| 17 |
Correct |
2 ms |
852 KB |
Output is correct |
| 18 |
Correct |
2 ms |
852 KB |
Output is correct |
| 19 |
Correct |
2 ms |
852 KB |
Output is correct |
| 20 |
Correct |
2 ms |
852 KB |
Output is correct |
| 21 |
Correct |
2 ms |
852 KB |
Output is correct |
| 22 |
Correct |
1 ms |
852 KB |
Output is correct |
| 23 |
Correct |
2 ms |
852 KB |
Output is correct |
| 24 |
Correct |
2 ms |
852 KB |
Output is correct |
| 25 |
Correct |
2 ms |
852 KB |
Output is correct |
| 26 |
Correct |
2 ms |
852 KB |
Output is correct |
| 27 |
Correct |
2 ms |
852 KB |
Output is correct |
| 28 |
Correct |
2 ms |
852 KB |
Output is correct |
| 29 |
Correct |
2 ms |
852 KB |
Output is correct |
| 30 |
Correct |
2 ms |
852 KB |
Output is correct |
| 31 |
Correct |
2 ms |
852 KB |
Output is correct |
| 32 |
Correct |
2 ms |
852 KB |
Output is correct |
| 33 |
Correct |
2 ms |
852 KB |
Output is correct |
| 34 |
Correct |
2 ms |
852 KB |
Output is correct |
| 35 |
Correct |
2 ms |
852 KB |
Output is correct |
| 36 |
Correct |
2 ms |
852 KB |
Output is correct |
| 37 |
Correct |
2 ms |
840 KB |
Output is correct |
| 38 |
Correct |
2 ms |
852 KB |
Output is correct |
| 39 |
Correct |
2 ms |
852 KB |
Output is correct |
| 40 |
Correct |
2 ms |
852 KB |
Output is correct |
| 41 |
Correct |
2 ms |
840 KB |
Output is correct |
| 42 |
Correct |
2 ms |
840 KB |
Output is correct |
| 43 |
Correct |
2 ms |
852 KB |
Output is correct |
| 44 |
Correct |
2 ms |
852 KB |
Output is correct |
| 45 |
Correct |
2 ms |
852 KB |
Output is correct |
