oj.uz

Submission #631262

# Submission time Handle Problem Language Result Execution time Memory
631262 2022-08-18T01:38:22 Z uylulu Palindrome-Free Numbers (BOI13_numbers) C++14
0 / 100
 1 ms 340 KB 
#include<bits/stdc++.h>
using namespace std;

#define int long long
#define ld long double
#define endl "\n"

const int N = 19;

int dp[N + 1][12][12][2];

string s;

int f(int pos,int i1,int i2,int tight) {
	if(pos == s.size()) return 1;
	if(dp[pos][i1][i2][tight] != -1) return dp[pos][i1][i2][tight];
	int res = 0,lim = 9;
	if(tight) {
		lim = s[pos] - '0';
	}
	for(int i = 0;i <= lim;i++) {
		if(i == i1 || i == i2) continue;
		int ns = 0;
		if(i == lim) ns = tight;
		res += f(pos + 1,i2,i,ns);
	}
	return dp[pos][i1][i2][tight] = res;
}

int help(int x) {
	s = to_string(x);
	memset(dp,-1,sizeof(dp));
	return f(0,11,11,1);
}

signed main() {
	freopen("in.txt","r",stdin);
	freopen("out.txt","w",stdout);
	
	int a,b;
	cin>>a>>b;
	if(a == 0) {
		cout<<help(b)<<endl;
	} else {
		cout<<help(b) - help(a - 1)<<endl;		
	}
}

Compilation message

numbers.cpp: In function 'long long int f(long long int, long long int, long long int, long long int)':
numbers.cpp:15:9: 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]
   15 |  if(pos == s.size()) return 1;
      |     ~~~~^~~~~~~~~~~
numbers.cpp: In function 'int main()':
numbers.cpp:37:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |  freopen("in.txt","r",stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~
numbers.cpp:38:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |  freopen("out.txt","w",stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 340 KB Output isn't correct
2 Incorrect 1 ms 340 KB Output isn't correct
3 Incorrect 0 ms 340 KB Output isn't correct
4 Incorrect 1 ms 340 KB Output isn't correct
5 Incorrect 0 ms 340 KB Output isn't correct
6 Incorrect 0 ms 340 KB Output isn't correct
7 Incorrect 0 ms 340 KB Output isn't correct
8 Incorrect 0 ms 340 KB Output isn't correct
9 Incorrect 0 ms 340 KB Output isn't correct
10 Incorrect 0 ms 340 KB Output isn't correct
11 Incorrect 1 ms 340 KB Output isn't correct
12 Incorrect 1 ms 340 KB Output isn't correct
13 Incorrect 0 ms 340 KB Output isn't correct
14 Incorrect 0 ms 340 KB Output isn't correct
15 Incorrect 0 ms 340 KB Output isn't correct
16 Incorrect 1 ms 340 KB Output isn't correct
17 Incorrect 0 ms 340 KB Output isn't correct
18 Incorrect 1 ms 340 KB Output isn't correct
19 Incorrect 1 ms 340 KB Output isn't correct
20 Incorrect 1 ms 340 KB Output isn't correct

Subtask #2
0 / 75.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 340 KB Output isn't correct
2 Incorrect 0 ms 340 KB Output isn't correct
3 Incorrect 0 ms 340 KB Output isn't correct
4 Incorrect 0 ms 340 KB Output isn't correct
5 Incorrect 0 ms 340 KB Output isn't correct
6 Incorrect 0 ms 340 KB Output isn't correct
7 Incorrect 1 ms 340 KB Output isn't correct
8 Incorrect 0 ms 340 KB Output isn't correct
9 Incorrect 1 ms 340 KB Output isn't correct
10 Incorrect 0 ms 340 KB Output isn't correct
11 Incorrect 1 ms 340 KB Output isn't correct
12 Incorrect 1 ms 340 KB Output isn't correct
13 Incorrect 1 ms 340 KB Output isn't correct
14 Incorrect 0 ms 340 KB Output isn't correct
15 Incorrect 1 ms 296 KB Output isn't correct
16 Incorrect 1 ms 340 KB Output isn't correct
17 Incorrect 1 ms 340 KB Output isn't correct
18 Incorrect 0 ms 340 KB Output isn't correct
19 Incorrect 0 ms 340 KB Output isn't correct
20 Incorrect 1 ms 340 KB Output isn't correct
21 Incorrect 0 ms 340 KB Output isn't correct
22 Incorrect 0 ms 340 KB Output isn't correct
23 Incorrect 0 ms 340 KB Output isn't correct
24 Incorrect 1 ms 340 KB Output isn't correct
25 Incorrect 0 ms 340 KB Output isn't correct
26 Incorrect 0 ms 340 KB Output isn't correct
27 Incorrect 0 ms 340 KB Output isn't correct
28 Incorrect 1 ms 340 KB Output isn't correct
29 Incorrect 1 ms 212 KB Output isn't correct
30 Incorrect 0 ms 340 KB Output isn't correct
31 Incorrect 1 ms 340 KB Output isn't correct
32 Incorrect 1 ms 340 KB Output isn't correct
33 Incorrect 1 ms 340 KB Output isn't correct
34 Incorrect 0 ms 340 KB Output isn't correct
35 Incorrect 1 ms 340 KB Output isn't correct
36 Incorrect 1 ms 340 KB Output isn't correct
37 Incorrect 0 ms 340 KB Output isn't correct
38 Incorrect 1 ms 340 KB Output isn't correct
39 Incorrect 0 ms 340 KB Output isn't correct
40 Incorrect 0 ms 340 KB Output isn't correct
41 Incorrect 1 ms 340 KB Output isn't correct
42 Incorrect 1 ms 340 KB Output isn't correct
43 Incorrect 1 ms 340 KB Output isn't correct
44 Incorrect 0 ms 340 KB Output isn't correct
45 Incorrect 1 ms 340 KB Output isn't correct