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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#883375#8529. Balance of Permutation0000pncAC ✓190ms12108kbC++141.5kb2025-02-05 16:06:412025-02-05 16:06:41

Judging History

This is the latest submission verdict.

  • [2025-02-05 16:06:41]
  • Judged
  • Verdict: AC
  • Time: 190ms
  • Memory: 12108kb
  • [2025-02-05 16:06:41]
  • Submitted

answer

#include <bits/stdc++.h>
using namespace std;
typedef long long LL;
typedef __int128_t i128;

template<typename T> void read(T &x) {
	x = 0; char ch = getchar();
	while (ch < '0' || ch > '9') ch = getchar();
	while (ch >= '0' && ch <= '9') x = (x << 3) + (x << 1) + (ch ^ 48), ch = getchar();
}

int n, b, p[35], vis[35];
i128 rk;

i128 calc(int x) {
	static i128 dp[35][35][455];
	for (int i = 1; i <= n; i++) for (int j = 0; j <= n; j++) {
		for (int k = 0; k <= n * n / 2; k++) dp[i][j][k] = 0;
	}
	int sm = 0, del = 0;
	for (int i = 1; i < x; i++) {
		if (p[i] >= x) del++;
		sm += max(0, min(p[i], x) - i);
	}
	dp[x - 1][del][sm] = 1;
	for (int i = x; i <= n; i++) {
		for (int j = 0; j < i; j++) {
			for (int k = 0; k <= b; k++) {
				i128 res = dp[i - 1][j][k];
				if (!res) continue;
				if (!vis[i]) {
					dp[i][j][j + k] += res; dp[i][j + 1][j + k + 1] += res;
					if (j) dp[i][j][j + k] += res * j; 
				}
				if (j) {
					dp[i][j][j + k] += res * (vis[i] ? 1 : j - del);
					dp[i][j - 1][j + k - 1] += res * (vis[i] ? 1 : j - del) * j;
				}
			}
		}
		del -= vis[i];
	}
	return dp[n][0][b];
}

int main() {
	read(n), read(b), read(rk); b >>= 1;
	for (int i = 1; i <= n; i++) {
		for (int j = 1; j <= n; j++) {
			if (vis[j]) continue;
			vis[j] = 1, p[i] = j;
			i128 cnt = calc(i + 1);
			if (cnt >= rk) break;
			rk -= cnt, vis[j] = 0, p[i] = 0;
		}
	}
	for (int i = 1; i <= n; i++) printf("%d%c", p[i], " \n"[i == n]);
	return 0;
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 5892kb

input:

6 6 6

output:

1 2 6 3 4 5

result:

ok 6 numbers

Test #2:

score: 0
Accepted
time: 80ms
memory: 11188kb

input:

30 300 3030303030303030303030

output:

1 2 3 4 9 23 20 28 24 16 21 17 27 29 8 26 25 30 19 18 22 12 7 13 6 10 5 15 14 11

result:

ok 30 numbers

Test #3:

score: 0
Accepted
time: 0ms
memory: 3840kb

input:

1 0 1

output:

1

result:

ok 1 number(s): "1"

Test #4:

score: 0
Accepted
time: 0ms
memory: 3840kb

input:

2 0 1

output:

1 2

result:

ok 2 number(s): "1 2"

Test #5:

score: 0
Accepted
time: 1ms
memory: 3712kb

input:

2 2 1

output:

2 1

result:

ok 2 number(s): "2 1"

Test #6:

score: 0
Accepted
time: 0ms
memory: 3840kb

input:

5 8 3

output:

1 5 4 2 3

result:

ok 5 number(s): "1 5 4 2 3"

Test #7:

score: 0
Accepted
time: 0ms
memory: 5832kb

input:

7 20 100

output:

3 6 7 4 1 5 2

result:

ok 7 numbers

Test #8:

score: 0
Accepted
time: 1ms
memory: 3840kb

input:

7 2 6

output:

2 1 3 4 5 6 7

result:

ok 7 numbers

Test #9:

score: 0
Accepted
time: 0ms
memory: 6056kb

input:

7 24 1

output:

4 5 6 7 1 2 3

result:

ok 7 numbers

Test #10:

score: 0
Accepted
time: 1ms
memory: 6172kb

input:

7 22 360

output:

7 6 4 3 5 2 1

result:

ok 7 numbers

Test #11:

score: 0
Accepted
time: 0ms
memory: 5904kb

input:

7 20 358

output:

5 7 2 4 6 3 1

result:

ok 7 numbers

Test #12:

score: 0
Accepted
time: 0ms
memory: 6144kb

input:

10 48 10001

output:

7 5 8 9 6 10 3 4 1 2

result:

ok 10 numbers

Test #13:

score: 0
Accepted
time: 1ms
memory: 6168kb

input:

10 42 10101

output:

3 9 6 8 10 5 7 2 1 4

result:

ok 10 numbers

Test #14:

score: 0
Accepted
time: 39ms
memory: 11124kb

input:

25 300 1

output:

7 14 15 16 17 18 19 20 21 22 23 24 25 1 2 3 4 5 6 8 9 10 11 12 13

result:

ok 25 numbers

Test #15:

score: 0
Accepted
time: 64ms
memory: 10156kb

input:

25 300 283788388040048639877

output:

25 24 23 22 21 20 19 18 17 16 11 12 13 14 15 10 9 8 7 5 6 4 2 1 3

result:

ok 25 numbers

Test #16:

score: 0
Accepted
time: 61ms
memory: 11020kb

input:

26 302 105773752969551707419545

output:

19 22 25 13 17 18 23 20 10 26 16 6 5 11 14 12 24 4 3 21 1 15 7 8 2 9

result:

ok 26 numbers

Test #17:

score: 0
Accepted
time: 62ms
memory: 12056kb

input:

27 308 8781128321749037280676555

output:

16 18 17 21 25 6 20 24 22 15 27 5 7 8 2 9 26 13 1 3 14 10 23 19 4 11 12

result:

ok 27 numbers

Test #18:

score: 0
Accepted
time: 75ms
memory: 11976kb

input:

28 304 806517199954337651602356955

output:

12 17 5 16 23 26 25 15 20 2 19 7 22 24 6 13 11 10 28 8 1 21 18 14 27 3 4 9

result:

ok 28 numbers

Test #19:

score: 0
Accepted
time: 95ms
memory: 11200kb

input:

29 322 40281026669581503094652149519

output:

16 21 10 25 17 29 9 28 2 8 26 27 22 4 3 5 18 14 19 1 23 20 15 11 13 7 6 12 24

result:

ok 29 numbers

Test #20:

score: 0
Accepted
time: 135ms
memory: 12100kb

input:

30 400 46479902466857426153849991132

output:

25 19 30 29 9 20 26 21 14 27 28 10 22 11 24 2 7 4 18 17 5 13 12 6 8 1 15 23 16 3

result:

ok 30 numbers

Test #21:

score: 0
Accepted
time: 117ms
memory: 11008kb

input:

30 450 1140008168482799670544355

output:

26 16 17 18 19 20 21 22 23 24 25 27 28 29 30 1 2 3 5 9 4 8 14 10 6 11 12 15 7 13

result:

ok 30 numbers

Test #22:

score: 0
Accepted
time: 44ms
memory: 12100kb

input:

30 150 480087379811286955791425915

output:

7 4 8 5 16 3 1 12 13 11 9 10 15 25 18 17 20 30 28 2 6 14 23 21 24 26 27 22 19 29

result:

ok 30 numbers

Test #23:

score: 0
Accepted
time: 42ms
memory: 11632kb

input:

30 150 480087379811286955791439470

output:

7 4 8 5 16 3 1 12 13 11 9 10 15 25 18 17 20 30 28 2 19 6 22 24 21 23 26 14 29 27

result:

ok 30 numbers

Test #24:

score: 0
Accepted
time: 133ms
memory: 11076kb

input:

30 440 41509275104334759322587324

output:

22 23 20 24 18 30 19 26 21 28 4 29 17 25 27 16 3 1 2 5 8 13 10 15 7 12 9 14 11 6

result:

ok 30 numbers

Test #25:

score: 0
Accepted
time: 125ms
memory: 11244kb

input:

30 450 1140008168482800727111311

output:

26 16 17 18 19 20 21 22 23 24 25 27 28 29 30 1 2 5 7 14 4 15 8 11 3 13 10 9 6 12

result:

ok 30 numbers

Test #26:

score: 0
Accepted
time: 140ms
memory: 11940kb

input:

30 400 52289890275214604423031772929

output:

26 27 29 21 28 16 18 11 2 25 24 23 6 30 20 13 17 10 15 4 9 12 8 22 19 1 5 7 3 14

result:

ok 30 numbers

Test #27:

score: 0
Accepted
time: 10ms
memory: 11184kb

input:

30 0 1

output:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

result:

ok 30 numbers

Test #28:

score: 0
Accepted
time: 112ms
memory: 12100kb

input:

30 450 1

output:

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

result:

ok 30 numbers

Test #29:

score: 0
Accepted
time: 190ms
memory: 11008kb

input:

30 450 1710012252724199424000000

output:

30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

result:

ok 30 numbers

Test #30:

score: 0
Accepted
time: 155ms
memory: 11276kb

input:

30 450 1692383260428073656742269

output:

30 27 26 28 18 29 21 19 25 17 20 16 24 22 23 7 13 4 6 3 5 12 1 15 14 9 11 8 2 10

result:

ok 30 numbers

Test #31:

score: 0
Accepted
time: 128ms
memory: 11104kb

input:

30 302 5918364042599361729860937331200

output:

30 29 28 27 26 25 14 8 9 10 11 12 13 7 15 16 17 18 19 20 21 22 23 24 6 5 4 3 2 1

result:

ok 30 numbers

Test #32:

score: 0
Accepted
time: 90ms
memory: 11140kb

input:

30 254 2256781660157136563723839089600

output:

25 2 3 12 7 16 19 8 22 6 11 17 27 26 10 24 15 21 20 18 28 9 30 23 14 13 5 29 4 1

result:

ok 30 numbers

Test #33:

score: 0
Accepted
time: 189ms
memory: 11380kb

input:

30 448 3131906441000512625049600

output:

23 20 28 18 26 30 19 29 27 22 17 24 21 25 2 13 16 15 14 12 11 10 9 8 7 6 5 4 3 1

result:

ok 30 numbers

Test #34:

score: 0
Accepted
time: 9ms
memory: 11012kb

input:

30 2 20

output:

1 2 3 4 5 6 7 8 9 11 10 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

result:

ok 30 numbers

Test #35:

score: 0
Accepted
time: 11ms
memory: 12108kb

input:

30 2 29

output:

2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

result:

ok 30 numbers

Extra Test:

score: 0
Extra Test Passed