#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll dp[20][11][11][2], N, a, b;
string s;
ll solve(ll n,ll a,ll b,ll m){
if(n==s.size()) return 1;
else if(dp[n][a][b][m]!=-1) return dp[n][a][b][m];
else{
dp[n][a][b][m] = 0;
ll &val = dp[n][a][b][m];
for(int i=0;i<=(m?s[n]-'0':9);i++){
if(i==a||i==b) continue;
if(i==0&&b==10&&a==10) val+=solve(n+1,a,b,0);
else val+=solve(n+1,i,a,m&&i==s[n]-'0');
}
return dp[n][a][b][m];
}
}
ll solve(){
memset(dp, -1, sizeof(dp));
return solve(0,10,10,1);
}
int main(){
cin >> N; s=to_string(N-1);
if(N-1==-1) a = 0;
else a = solve();
cin >> N; s=to_string(N);
b = solve();
printf("%lld\n",b-a);
return 0;
}
Compilation message
numbers.cpp: In function 'll solve(ll, ll, ll, ll)':
numbers.cpp:8:6: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(n==s.size()) return 1;
~^~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
580 KB |
Output is correct |
| 3 |
Correct |
3 ms |
700 KB |
Output is correct |
| 4 |
Correct |
4 ms |
700 KB |
Output is correct |
| 5 |
Correct |
3 ms |
700 KB |
Output is correct |
| 6 |
Correct |
3 ms |
700 KB |
Output is correct |
| 7 |
Correct |
3 ms |
700 KB |
Output is correct |
| 8 |
Correct |
3 ms |
700 KB |
Output is correct |
| 9 |
Correct |
3 ms |
748 KB |
Output is correct |
| 10 |
Correct |
4 ms |
752 KB |
Output is correct |
| 11 |
Correct |
3 ms |
756 KB |
Output is correct |
| 12 |
Correct |
3 ms |
888 KB |
Output is correct |
| 13 |
Correct |
2 ms |
888 KB |
Output is correct |
| 14 |
Correct |
2 ms |
888 KB |
Output is correct |
| 15 |
Correct |
2 ms |
888 KB |
Output is correct |
| 16 |
Correct |
3 ms |
924 KB |
Output is correct |
| 17 |
Correct |
2 ms |
924 KB |
Output is correct |
| 18 |
Correct |
2 ms |
924 KB |
Output is correct |
| 19 |
Correct |
4 ms |
924 KB |
Output is correct |
| 20 |
Correct |
2 ms |
924 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
924 KB |
Output is correct |
| 2 |
Correct |
3 ms |
924 KB |
Output is correct |
| 3 |
Correct |
2 ms |
924 KB |
Output is correct |
| 4 |
Correct |
3 ms |
924 KB |
Output is correct |
| 5 |
Correct |
3 ms |
924 KB |
Output is correct |
| 6 |
Correct |
2 ms |
1036 KB |
Output is correct |
| 7 |
Correct |
2 ms |
1036 KB |
Output is correct |
| 8 |
Correct |
2 ms |
1036 KB |
Output is correct |
| 9 |
Correct |
3 ms |
1036 KB |
Output is correct |
| 10 |
Correct |
2 ms |
1036 KB |
Output is correct |
| 11 |
Correct |
3 ms |
1036 KB |
Output is correct |
| 12 |
Correct |
3 ms |
1036 KB |
Output is correct |
| 13 |
Correct |
3 ms |
1036 KB |
Output is correct |
| 14 |
Correct |
3 ms |
1036 KB |
Output is correct |
| 15 |
Correct |
2 ms |
1036 KB |
Output is correct |
| 16 |
Correct |
4 ms |
1036 KB |
Output is correct |
| 17 |
Correct |
2 ms |
1036 KB |
Output is correct |
| 18 |
Correct |
2 ms |
1036 KB |
Output is correct |
| 19 |
Correct |
3 ms |
1036 KB |
Output is correct |
| 20 |
Correct |
3 ms |
1036 KB |
Output is correct |
| 21 |
Correct |
2 ms |
1036 KB |
Output is correct |
| 22 |
Correct |
2 ms |
1036 KB |
Output is correct |
| 23 |
Correct |
3 ms |
1036 KB |
Output is correct |
| 24 |
Correct |
3 ms |
1036 KB |
Output is correct |
| 25 |
Correct |
3 ms |
1036 KB |
Output is correct |
| 26 |
Correct |
3 ms |
1036 KB |
Output is correct |
| 27 |
Correct |
3 ms |
1112 KB |
Output is correct |
| 28 |
Correct |
3 ms |
1144 KB |
Output is correct |
| 29 |
Correct |
2 ms |
1144 KB |
Output is correct |
| 30 |
Correct |
3 ms |
1144 KB |
Output is correct |
| 31 |
Correct |
3 ms |
1144 KB |
Output is correct |
| 32 |
Correct |
3 ms |
1144 KB |
Output is correct |
| 33 |
Correct |
2 ms |
1144 KB |
Output is correct |
| 34 |
Correct |
4 ms |
1144 KB |
Output is correct |
| 35 |
Correct |
3 ms |
1144 KB |
Output is correct |
| 36 |
Correct |
3 ms |
1144 KB |
Output is correct |
| 37 |
Correct |
3 ms |
1144 KB |
Output is correct |
| 38 |
Correct |
3 ms |
1144 KB |
Output is correct |
| 39 |
Correct |
3 ms |
1144 KB |
Output is correct |
| 40 |
Correct |
3 ms |
1144 KB |
Output is correct |
| 41 |
Correct |
3 ms |
1144 KB |
Output is correct |
| 42 |
Correct |
3 ms |
1144 KB |
Output is correct |
| 43 |
Correct |
2 ms |
1144 KB |
Output is correct |
| 44 |
Correct |
3 ms |
1144 KB |
Output is correct |
| 45 |
Correct |
3 ms |
1144 KB |
Output is correct |
