#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
vector<int> d;
ll dp[20][2][11][11];
ll solve(int pos, bool flag, int l1, int l2){
if(pos == d.size()) return 1;
if(dp[pos][flag][l1][l2] != -1) return dp[pos][flag][l1][l2];
ll tot = 0;
if(flag){
for(int i=0; i<10; i++){
if(i == l1 or i == l2) continue;
tot += solve(pos+1, flag, l2, i);
}
}
else{
for(int i=0; i<=d[pos]; i++){
if(i == l1 or i == l2) continue;
tot += solve(pos+1, i != d[pos] , l2, i);
}
}
return dp[pos][flag][l1][l2] = tot;
}
ll calc(ll x){
if(x < 0) return 0;
d.clear();
while(x){
d.push_back(x%10);
x /= 10;
}
reverse(d.begin(), d.end());
ll ans = 0;
for(int i=0; i+1<d.size(); i++){
memset(dp, -1, sizeof dp);
ans += solve(i, i != 0, 0, 10);
}
return ans;
}
int main(){
ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
ll a, b;
cin >> a >> b;
cout << calc(b) - calc(a-1) << "\n";
return 0;
}
Compilation message
numbers.cpp: In function 'll solve(int, bool, int, int)':
numbers.cpp:9:9: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
9 | if(pos == d.size()) return 1;
| ~~~~^~~~~~~~~~~
numbers.cpp: In function 'll calc(ll)':
numbers.cpp:36:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
36 | for(int i=0; i+1<d.size(); i++){
| ~~~^~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 2 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 3 |
Correct |
2 ms |
332 KB |
Output is correct |
| 4 |
Incorrect |
0 ms |
332 KB |
Output isn't correct |
| 5 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 6 |
Incorrect |
1 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 |
0 ms |
332 KB |
Output is correct |
| 10 |
Correct |
0 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
332 KB |
Output is correct |
| 12 |
Correct |
0 ms |
332 KB |
Output is correct |
| 13 |
Correct |
0 ms |
332 KB |
Output is 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 |
2 ms |
332 KB |
Output is correct |
| 20 |
Correct |
1 ms |
332 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
332 KB |
Output is correct |
| 2 |
Correct |
2 ms |
332 KB |
Output is correct |
| 3 |
Correct |
2 ms |
344 KB |
Output is correct |
| 4 |
Correct |
2 ms |
332 KB |
Output is correct |
| 5 |
Correct |
1 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
1 ms |
332 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
332 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
332 KB |
Output is correct |
| 12 |
Correct |
1 ms |
332 KB |
Output is correct |
| 13 |
Correct |
1 ms |
332 KB |
Output is correct |
| 14 |
Correct |
1 ms |
332 KB |
Output is correct |
| 15 |
Correct |
1 ms |
332 KB |
Output is correct |
| 16 |
Correct |
2 ms |
332 KB |
Output is correct |
| 17 |
Correct |
2 ms |
332 KB |
Output is correct |
| 18 |
Correct |
2 ms |
332 KB |
Output is correct |
| 19 |
Correct |
2 ms |
332 KB |
Output is correct |
| 20 |
Correct |
2 ms |
332 KB |
Output is correct |
| 21 |
Correct |
2 ms |
332 KB |
Output is correct |
| 22 |
Correct |
2 ms |
332 KB |
Output is correct |
| 23 |
Correct |
2 ms |
332 KB |
Output is correct |
| 24 |
Correct |
2 ms |
332 KB |
Output is correct |
| 25 |
Correct |
2 ms |
332 KB |
Output is correct |
| 26 |
Correct |
2 ms |
332 KB |
Output is correct |
| 27 |
Correct |
2 ms |
332 KB |
Output is correct |
| 28 |
Correct |
2 ms |
332 KB |
Output is correct |
| 29 |
Correct |
2 ms |
348 KB |
Output is correct |
| 30 |
Correct |
2 ms |
332 KB |
Output is correct |
| 31 |
Correct |
2 ms |
332 KB |
Output is correct |
| 32 |
Correct |
2 ms |
332 KB |
Output is correct |
| 33 |
Correct |
2 ms |
332 KB |
Output is correct |
| 34 |
Correct |
2 ms |
332 KB |
Output is correct |
| 35 |
Correct |
2 ms |
332 KB |
Output is correct |
| 36 |
Correct |
2 ms |
332 KB |
Output is correct |
| 37 |
Correct |
2 ms |
332 KB |
Output is correct |
| 38 |
Correct |
2 ms |
332 KB |
Output is correct |
| 39 |
Correct |
2 ms |
332 KB |
Output is correct |
| 40 |
Correct |
2 ms |
332 KB |
Output is correct |
| 41 |
Correct |
2 ms |
348 KB |
Output is correct |
| 42 |
Correct |
2 ms |
336 KB |
Output is correct |
| 43 |
Correct |
2 ms |
332 KB |
Output is correct |
| 44 |
Correct |
2 ms |
332 KB |
Output is correct |
| 45 |
Correct |
2 ms |
332 KB |
Output is correct |
