oj.uz

답안 #467564

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
467564 2021-08-23T17:07:02 Z Leonardo_Paes Palindrome-Free Numbers (BOI13_numbers) C++17
72.5 / 100
 1 ms 332 KB 
#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;
	if(x == 0) return 1;
	d.clear();
	while(x){
		d.push_back(x%10);
		x /= 10;
	}
	reverse(d.begin(), d.end());
	ll ans = 0;
	memset(dp, -1, sizeof dp);
	for(int i=0; i<d.size(); i++) ans += solve(i, i != 0, i == 0 ? 10 : 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:38:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |  for(int i=0; i<d.size(); i++) ans += solve(i, i != 0, i == 0 ? 10 : 0, 10);
      |               ~^~~~~~~~~

Subtask #1
12.5 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 332 KB Output isn't correct
2 Incorrect 0 ms 332 KB Output isn't correct
3 Correct 1 ms 332 KB Output is correct
4 Incorrect 0 ms 332 KB Output isn't correct
5 Incorrect 0 ms 332 KB Output isn't correct
6 Incorrect 0 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 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 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 0 ms 332 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Incorrect 0 ms 332 KB Output isn't correct

Subtask #2
60.0 / 75.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 280 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Incorrect 1 ms 332 KB Output isn't correct
6 Correct 1 ms 332 KB Output is correct
7 Incorrect 1 ms 332 KB Output isn't correct
8 Incorrect 1 ms 332 KB Output isn't correct
9 Incorrect 1 ms 332 KB Output isn't correct
10 Incorrect 1 ms 332 KB Output isn't correct
11 Correct 1 ms 332 KB Output is correct
12 Incorrect 1 ms 332 KB Output isn't correct
13 Incorrect 0 ms 332 KB Output isn't correct
14 Incorrect 0 ms 332 KB Output isn't correct
15 Incorrect 1 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 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 1 ms 332 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 1 ms 332 KB Output is correct