#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define fr first
#define sc second
#define clr(a, x) memset(a, x, sizeof(a))
#define dbg(x) cout<<"("<<#x<<"): "<<x<<endl;
#define printvector(arr) for (auto it = arr.begin(); it != arr.end(); ++it) cout<<*it<<" "; cout<<endl;
#define all(v) v.begin(), v.end()
#define lcm(a, b) (a * b)/__gcd(a, b)
#define int long long int
#define printvecpairs(vec) for(auto it: vec) cout<<it.fr<<' '<<it.sc<<endl;
#define endl '\n'
#define float long double
const int MOD = 1e9 + 7;
const int INF = 2e15;
const int MAXN = 1e5 + 5;
string s1, s2;
int dp[20][12][12][3][3];
int solve(int idx, int p1, int p2, bool same_upper, bool same_lower){
if(idx == s2.size()) {
return 1;
}
if(dp[idx][p1][p2][same_upper][same_lower] != -1){
return dp[idx][p1][p2][same_upper][same_lower];
}
int lo = s1[idx]-'0';
int hi = s2[idx]-'0';
int ans = 0;
for(int i= 0;i<10;i++){
bool valid =true;
if(same_lower){
if(i < lo) valid = false;
}
if(same_upper){
if(i > hi) valid = false;
}
if(i == p1-1 || i == p2-1) valid = false;
if(!valid) continue;
bool newb1 = (lo ==i) & same_lower;
bool newb2 = (hi ==i) & same_upper;
ans += solve(idx+1, i+1, p1, newb2, newb1);
}
return dp[idx][p1][p2][same_upper][same_lower] = ans;
}
signed main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
#ifdef LOCAL
freopen("input.txt", "r", stdin);
#endif
cin>>s1>>s2;
clr(dp, -1);
while(s1.size() != s2.size()){
s1 = '0'+s1;
}
cout<<solve(0, 0, 0, 1, 1)<<endl;
return 0;
}
Compilation message
numbers.cpp: In function 'long long int solve(long long int, long long int, long long int, bool, bool)':
numbers.cpp:25:9: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
25 | if(idx == s2.size()) {
| ~~~~^~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
492 KB |
Output isn't correct |
| 2 |
Incorrect |
1 ms |
492 KB |
Output isn't correct |
| 3 |
Correct |
1 ms |
492 KB |
Output is correct |
| 4 |
Incorrect |
1 ms |
492 KB |
Output isn't correct |
| 5 |
Correct |
1 ms |
492 KB |
Output is correct |
| 6 |
Incorrect |
1 ms |
492 KB |
Output isn't correct |
| 7 |
Incorrect |
1 ms |
492 KB |
Output isn't correct |
| 8 |
Incorrect |
1 ms |
628 KB |
Output isn't correct |
| 9 |
Correct |
1 ms |
492 KB |
Output is correct |
| 10 |
Correct |
1 ms |
492 KB |
Output is correct |
| 11 |
Correct |
1 ms |
492 KB |
Output is correct |
| 12 |
Correct |
1 ms |
492 KB |
Output is correct |
| 13 |
Correct |
1 ms |
492 KB |
Output is correct |
| 14 |
Incorrect |
1 ms |
492 KB |
Output isn't correct |
| 15 |
Incorrect |
1 ms |
492 KB |
Output isn't correct |
| 16 |
Correct |
1 ms |
492 KB |
Output is correct |
| 17 |
Correct |
1 ms |
492 KB |
Output is correct |
| 18 |
Correct |
1 ms |
492 KB |
Output is correct |
| 19 |
Correct |
1 ms |
492 KB |
Output is correct |
| 20 |
Incorrect |
1 ms |
492 KB |
Output isn't correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
492 KB |
Output is correct |
| 2 |
Correct |
1 ms |
640 KB |
Output is correct |
| 3 |
Correct |
1 ms |
492 KB |
Output is correct |
| 4 |
Correct |
1 ms |
492 KB |
Output is correct |
| 5 |
Incorrect |
1 ms |
492 KB |
Output isn't correct |
| 6 |
Correct |
1 ms |
492 KB |
Output is correct |
| 7 |
Incorrect |
1 ms |
492 KB |
Output isn't correct |
| 8 |
Incorrect |
1 ms |
492 KB |
Output isn't correct |
| 9 |
Incorrect |
1 ms |
492 KB |
Output isn't correct |
| 10 |
Incorrect |
1 ms |
492 KB |
Output isn't correct |
| 11 |
Correct |
1 ms |
492 KB |
Output is correct |
| 12 |
Incorrect |
1 ms |
492 KB |
Output isn't correct |
| 13 |
Incorrect |
1 ms |
492 KB |
Output isn't correct |
| 14 |
Incorrect |
1 ms |
492 KB |
Output isn't correct |
| 15 |
Incorrect |
1 ms |
492 KB |
Output isn't correct |
| 16 |
Correct |
1 ms |
492 KB |
Output is correct |
| 17 |
Correct |
1 ms |
492 KB |
Output is correct |
| 18 |
Correct |
1 ms |
492 KB |
Output is correct |
| 19 |
Correct |
1 ms |
492 KB |
Output is correct |
| 20 |
Correct |
1 ms |
492 KB |
Output is correct |
| 21 |
Correct |
1 ms |
492 KB |
Output is correct |
| 22 |
Correct |
1 ms |
492 KB |
Output is correct |
| 23 |
Correct |
1 ms |
492 KB |
Output is correct |
| 24 |
Correct |
1 ms |
492 KB |
Output is correct |
| 25 |
Correct |
1 ms |
492 KB |
Output is correct |
| 26 |
Correct |
1 ms |
492 KB |
Output is correct |
| 27 |
Correct |
1 ms |
492 KB |
Output is correct |
| 28 |
Correct |
1 ms |
492 KB |
Output is correct |
| 29 |
Correct |
1 ms |
492 KB |
Output is correct |
| 30 |
Correct |
1 ms |
492 KB |
Output is correct |
| 31 |
Correct |
1 ms |
512 KB |
Output is correct |
| 32 |
Correct |
1 ms |
504 KB |
Output is correct |
| 33 |
Correct |
1 ms |
492 KB |
Output is correct |
| 34 |
Correct |
1 ms |
492 KB |
Output is correct |
| 35 |
Correct |
1 ms |
492 KB |
Output is correct |
| 36 |
Correct |
1 ms |
492 KB |
Output is correct |
| 37 |
Correct |
1 ms |
492 KB |
Output is correct |
| 38 |
Correct |
1 ms |
620 KB |
Output is correct |
| 39 |
Correct |
1 ms |
492 KB |
Output is correct |
| 40 |
Correct |
1 ms |
492 KB |
Output is correct |
| 41 |
Correct |
1 ms |
492 KB |
Output is correct |
| 42 |
Correct |
1 ms |
492 KB |
Output is correct |
| 43 |
Correct |
1 ms |
492 KB |
Output is correct |
| 44 |
Correct |
1 ms |
492 KB |
Output is correct |
| 45 |
Correct |
1 ms |
492 KB |
Output is correct |
