oj.uz

답안 #98628

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
98628 2019-02-25T02:10:13 Z PeppaPig Palindrome-Free Numbers (BOI13_numbers) C++14
100 / 100
 5 ms 640 KB 
#include <bits/stdc++.h>

using namespace std;

long long a, b, ans;
long long dp[20][15][15][2][2];
char A[20];

long long solve(int pos = 0, int a = 10, int b = 10, int f = 0, int st = 1) {
	if(!A[pos]) return 1LL;
	long long &ret = dp[pos][a][b][f][st];
	if(~ret) return ret;
	ret = 0;
	int lim;
	if(!f) lim = A[pos]-'0';
	else lim = 9;
	for(int i = 0; i <= lim; i++) {
		if(i == a || i == b) continue;
		if(!i && st) ret += solve(pos+1, 10, 10, 1, 1);
		else ret += solve(pos+1, b, i, f|(i < lim), 0);
	}

	return ret;
}

int main() {
	scanf("%lld %lld", &a, &b);
	memset(dp, -1LL, sizeof dp);
	sprintf(A, "%lld", b);
	ans = solve();
	if(a) {
		memset(dp, -1LL, sizeof dp);
		sprintf(A, "%lld", a-1);
		ans -= solve();
	}

	printf("%lld\n", ans);

	return 0;
}

Compilation message

numbers.cpp: In function 'int main()':
numbers.cpp:27:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld %lld", &a, &b);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~
numbers.cpp:26:5: warning: '__builtin___sprintf_chk' may write a terminating nul past the end of the destination [-Wformat-overflow=]
 int main() {
     ^~~~
In file included from /usr/include/stdio.h:936:0,
                 from /usr/include/c++/7/cstdio:42,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:46,
                 from numbers.cpp:1:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:34:43: note: '__builtin___sprintf_chk' output between 2 and 21 bytes into a destination of size 20
       __bos (__s), __fmt, __va_arg_pack ());
                                           ^

Subtask #1
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 512 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 2 ms 512 KB Output is correct
4 Correct 2 ms 512 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 2 ms 512 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 512 KB Output is correct
11 Correct 2 ms 512 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 2 ms 512 KB Output is correct
14 Correct 3 ms 512 KB Output is correct
15 Correct 3 ms 512 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 2 ms 512 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 3 ms 512 KB Output is correct

Subtask #2
75.0 / 75.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 512 KB Output is correct
2 Correct 3 ms 512 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 3 ms 640 KB Output is correct
6 Correct 2 ms 512 KB Output is correct
7 Correct 2 ms 512 KB Output is correct
8 Correct 3 ms 512 KB Output is correct
9 Correct 2 ms 512 KB Output is correct
10 Correct 3 ms 512 KB Output is correct
11 Correct 3 ms 512 KB Output is correct
12 Correct 5 ms 512 KB Output is correct
13 Correct 2 ms 512 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 512 KB Output is correct
16 Correct 3 ms 512 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 3 ms 512 KB Output is correct
19 Correct 3 ms 484 KB Output is correct
20 Correct 3 ms 512 KB Output is correct
21 Correct 3 ms 512 KB Output is correct
22 Correct 4 ms 384 KB Output is correct
23 Correct 3 ms 512 KB Output is correct
24 Correct 3 ms 512 KB Output is correct
25 Correct 3 ms 512 KB Output is correct
26 Correct 3 ms 512 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 3 ms 512 KB Output is correct
29 Correct 3 ms 384 KB Output is correct
30 Correct 2 ms 512 KB Output is correct
31 Correct 2 ms 384 KB Output is correct
32 Correct 2 ms 384 KB Output is correct
33 Correct 3 ms 512 KB Output is correct
34 Correct 3 ms 512 KB Output is correct
35 Correct 2 ms 384 KB Output is correct
36 Correct 3 ms 384 KB Output is correct
37 Correct 3 ms 512 KB Output is correct
38 Correct 3 ms 384 KB Output is correct
39 Correct 2 ms 384 KB Output is correct
40 Correct 3 ms 384 KB Output is correct
41 Correct 3 ms 512 KB Output is correct
42 Correct 4 ms 512 KB Output is correct
43 Correct 2 ms 384 KB Output is correct
44 Correct 3 ms 512 KB Output is correct
45 Correct 3 ms 384 KB Output is correct