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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
#621033#7778. Turning PermutationcrychicWA 1ms3768kbC++203.3kb2024-10-08 00:31:232024-10-08 00:31:23

Judging History

你现在查看的是最新测评结果

  • [2024-10-08 00:31:23]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:3768kb
  • [2024-10-08 00:31:23]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;
using ll = long long;
const int N = 55;
int n;
ll dp[N][N];
vector<int> pre_val;
int pos[N];
int limit[N];
ll work(int ward){
    // dp[i][j]  [0/1] 前i个数放入排列中 其中第i个数放在第j个位置
    // ward == 0 偶数大 wark == 1 奇数大
    // 会有一些数字已经放好 这些数字一定放在前面且它们之间的相对位置确定
    // 对于这些数字可以直接处理出来它们需要放在哪个位置
    int sz = pre_val.size();
    memset(limit,0,sizeof(limit));
    for(int i = 0;i < pre_val.size();i++){
        int pos_1 = 1;
        for(int j = 0;j < i;j ++){
            if(pre_val[j] < pre_val[i]) pos_1 ++;
        }
        limit[pre_val[i]] = pos_1;
    }
    memset(dp,0,sizeof(dp)); 
    dp[1][1] = 1;
    // cerr << "! ";
    // for(int i = 0;i < pre_val.size();i ++){
    //     cerr << pre_val[i] << ' ';
    // }
    // cerr << '\n';
    int tot = 1;
    if(limit[1])tot ++;
    for(int i = 2;i <= n ;i ++){
        int t_ward = ((i & 1) ^ ward) & 1;// 1 表示上一次更大 0表示上一次更小
        if(limit[i]){
            int pos = limit[i];
            for(int j = 1;j <= i;j ++){
                dp[i][pos] += dp[i - 1][j];
            }
            tot ++;
        }else {
            for(int j = 1;j <= i;j ++){
                for(int k = tot;k <= i;k ++){
                    // if(pos[k])continue;

                    if(t_ward){
                        if(k <= j){
                            dp[i][k] += dp[i - 1][j];
                        }
                    }else {
                        if(k > j){
                            dp[i][k] += dp[i - 1][j];
                        }
                    }
                }
            }
        }
        // for(int j = 1;j <= n;j ++){
        //     cerr << i << ' ' << j << ' ' << dp[i][j] << '\n';
        // }
    }
    ll res = 0;
    for(int i = 1;i <= n;i ++){
        res += dp[n][i];
    }
    // cerr << "?" << res << '\n';
    return res;
}

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    // 1 > 2 < 3 > 4 < 5 > 6 < 7 > 8 < 9 > 10
    // 1 < 2 > 3 < 4 > 5 < 6 > 7 < 8 > 9 < 10
    ll k;
    cin >> n >> k;
    int ward = 0;
    bool er = 1;
    for(int i = 1;i <= n;i ++){

        for(int j = 1;j <= n;j ++){
            if(i == 1){
                ward = j & 1;
                ward ^= 1;
            }
            int t_ward = (j ^ ward) & 1;// 0 比两边大 1 比两边小
            if(pos[j]) continue;
            if(t_ward){
                if((j + 1 <= n && pos[j + 1]) || (j - 1 >= 1 && pos[j - 1]))continue;
            }else {
                if((j + 1 <= n && !pos[j + 1]) || (j - 1 >= 1 && !pos[j - 1]))continue;
            }
            pre_val.push_back(j);
            pos[j] = i;
            ll p = work(ward);
            if(p < k){
                k -= p;
                pre_val.pop_back();
                pos[j] = 0;
            }else {
                er = 0;
                break;
            }
        }
        if(i == 1){
            if(er)break;
        }
    }
    if(er){
        cout << "-1\n";
        return 0;
    }
    assert(pre_val.size() == n);
    for(auto x : pre_val){
        cout << x << " ";
    }
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3712kb

input:

3 2

output:

2 1 3 

result:

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

Test #2:

score: 0
Accepted
time: 0ms
memory: 3636kb

input:

3 5

output:

-1

result:

ok 1 number(s): "-1"

Test #3:

score: 0
Accepted
time: 0ms
memory: 3764kb

input:

4 6

output:

3 1 2 4 

result:

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

Test #4:

score: 0
Accepted
time: 0ms
memory: 3752kb

input:

4 11

output:

-1

result:

ok 1 number(s): "-1"

Test #5:

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

input:

3 1

output:

1 3 2 

result:

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

Test #6:

score: 0
Accepted
time: 0ms
memory: 3768kb

input:

3 10

output:

-1

result:

ok 1 number(s): "-1"

Test #7:

score: 0
Accepted
time: 0ms
memory: 3648kb

input:

3 52

output:

-1

result:

ok 1 number(s): "-1"

Test #8:

score: 0
Accepted
time: 0ms
memory: 3632kb

input:

3 756

output:

-1

result:

ok 1 number(s): "-1"

Test #9:

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

input:

3 7721

output:

-1

result:

ok 1 number(s): "-1"

Test #10:

score: 0
Accepted
time: 0ms
memory: 3696kb

input:

5 1

output:

1 3 2 5 4 

result:

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

Test #11:

score: 0
Accepted
time: 0ms
memory: 3644kb

input:

5 8

output:

2 4 1 3 5 

result:

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

Test #12:

score: 0
Accepted
time: 0ms
memory: 3756kb

input:

5 85

output:

-1

result:

ok 1 number(s): "-1"

Test #13:

score: 0
Accepted
time: 0ms
memory: 3624kb

input:

5 846

output:

-1

result:

ok 1 number(s): "-1"

Test #14:

score: 0
Accepted
time: 0ms
memory: 3688kb

input:

5 6957

output:

-1

result:

ok 1 number(s): "-1"

Test #15:

score: 0
Accepted
time: 0ms
memory: 3748kb

input:

8 1

output:

1 3 2 5 4 7 6 8 

result:

ok 8 numbers

Test #16:

score: 0
Accepted
time: 0ms
memory: 3640kb

input:

8 7

output:

1 3 2 5 7 8 4 6 

result:

ok 8 numbers

Test #17:

score: 0
Accepted
time: 0ms
memory: 3628kb

input:

8 71

output:

1 3 7 5 4 2 6 8 

result:

ok 8 numbers

Test #18:

score: 0
Accepted
time: 0ms
memory: 3756kb

input:

8 863

output:

3 5 7 1 4 2 8 6 

result:

ok 8 numbers

Test #19:

score: 0
Accepted
time: 0ms
memory: 3692kb

input:

8 7099

output:

-1

result:

ok 1 number(s): "-1"

Test #20:

score: 0
Accepted
time: 0ms
memory: 3636kb

input:

10 100000

output:

10 8 4 6 9 2 7 3 5 1 

result:

ok 10 numbers

Test #21:

score: 0
Accepted
time: 0ms
memory: 3636kb

input:

10 62278

output:

7 1 9 8 5 10 3 6 2 4 

result:

ok 10 numbers

Test #22:

score: 0
Accepted
time: 1ms
memory: 3640kb

input:

10 1000000

output:

-1

result:

ok 1 number(s): "-1"

Test #23:

score: 0
Accepted
time: 0ms
memory: 3636kb

input:

10 572106

output:

-1

result:

ok 1 number(s): "-1"

Test #24:

score: 0
Accepted
time: 0ms
memory: 3696kb

input:

10 10000000

output:

-1

result:

ok 1 number(s): "-1"

Test #25:

score: 0
Accepted
time: 0ms
memory: 3716kb

input:

10 9715489

output:

-1

result:

ok 1 number(s): "-1"

Test #26:

score: 0
Accepted
time: 1ms
memory: 3636kb

input:

10 100000000

output:

-1

result:

ok 1 number(s): "-1"

Test #27:

score: 0
Accepted
time: 0ms
memory: 3768kb

input:

10 85089137

output:

-1

result:

ok 1 number(s): "-1"

Test #28:

score: 0
Accepted
time: 0ms
memory: 3640kb

input:

10 1000000000

output:

-1

result:

ok 1 number(s): "-1"

Test #29:

score: 0
Accepted
time: 0ms
memory: 3752kb

input:

10 906109922

output:

-1

result:

ok 1 number(s): "-1"

Test #30:

score: 0
Accepted
time: 0ms
memory: 3708kb

input:

15 100000

output:

1 3 2 5 7 9 13 15 11 6 4 14 10 8 12 

result:

ok 15 numbers

Test #31:

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

input:

15 99389

output:

1 3 2 5 7 9 13 15 6 4 11 8 10 14 12 

result:

ok 15 numbers

Test #32:

score: 0
Accepted
time: 0ms
memory: 3640kb

input:

15 1000000

output:

1 3 2 7 15 13 5 11 6 9 8 14 4 10 12 

result:

ok 15 numbers

Test #33:

score: 0
Accepted
time: 0ms
memory: 3696kb

input:

15 691130

output:

1 3 2 7 9 5 11 4 13 6 15 12 10 8 14 

result:

ok 15 numbers

Test #34:

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

input:

15 10000000

output:

1 3 7 5 4 9 13 11 6 15 10 12 14 2 8 

result:

ok 15 numbers

Test #35:

score: 0
Accepted
time: 0ms
memory: 3692kb

input:

15 8403898

output:

1 3 5 13 15 9 7 6 11 12 10 8 14 2 4 

result:

ok 15 numbers

Test #36:

score: 0
Accepted
time: 0ms
memory: 3696kb

input:

15 100000000

output:

1 9 5 7 13 11 12 3 15 10 14 2 6 4 8 

result:

ok 15 numbers

Test #37:

score: 0
Accepted
time: 0ms
memory: 3696kb

input:

15 80159790

output:

1 7 9 15 11 5 13 3 4 8 12 10 14 2 6 

result:

ok 15 numbers

Test #38:

score: 0
Accepted
time: 0ms
memory: 3696kb

input:

15 1000000000

output:

4 14 10 6 15 8 2 5 12 3 11 7 13 9 1 

result:

ok 15 numbers

Test #39:

score: 0
Accepted
time: 0ms
memory: 3632kb

input:

15 941321083

output:

4 12 2 14 10 8 9 1 3 6 7 13 11 5 15 

result:

ok 15 numbers

Test #40:

score: 0
Accepted
time: 0ms
memory: 3768kb

input:

20 100000000000000

output:

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

result:

ok 20 numbers

Test #41:

score: 0
Accepted
time: 1ms
memory: 3696kb

input:

20 88340160907341

output:

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

result:

ok 20 numbers

Test #42:

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

input:

20 1000000000000000

output:

-1

result:

ok 1 number(s): "-1"

Test #43:

score: 0
Accepted
time: 0ms
memory: 3688kb

input:

20 825683798851116

output:

-1

result:

ok 1 number(s): "-1"

Test #44:

score: 0
Accepted
time: 0ms
memory: 3640kb

input:

20 10000000000000000

output:

-1

result:

ok 1 number(s): "-1"

Test #45:

score: 0
Accepted
time: 0ms
memory: 3628kb

input:

20 7757196171989613

output:

-1

result:

ok 1 number(s): "-1"

Test #46:

score: 0
Accepted
time: 0ms
memory: 3696kb

input:

20 100000000000000000

output:

-1

result:

ok 1 number(s): "-1"

Test #47:

score: 0
Accepted
time: 0ms
memory: 3660kb

input:

20 97697763625539018

output:

-1

result:

ok 1 number(s): "-1"

Test #48:

score: 0
Accepted
time: 0ms
memory: 3708kb

input:

20 1000000000000000000

output:

-1

result:

ok 1 number(s): "-1"

Test #49:

score: 0
Accepted
time: 0ms
memory: 3752kb

input:

20 828662389005083354

output:

-1

result:

ok 1 number(s): "-1"

Test #50:

score: 0
Accepted
time: 1ms
memory: 3756kb

input:

21 100000000000000

output:

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

result:

ok 21 numbers

Test #51:

score: 0
Accepted
time: 1ms
memory: 3700kb

input:

21 84706086886746

output:

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

result:

ok 21 numbers

Test #52:

score: 0
Accepted
time: 1ms
memory: 3624kb

input:

21 1000000000000000

output:

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

result:

ok 21 numbers

Test #53:

score: 0
Accepted
time: 1ms
memory: 3716kb

input:

21 554929680010592

output:

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

result:

ok 21 numbers

Test #54:

score: 0
Accepted
time: 0ms
memory: 3688kb

input:

21 10000000000000000

output:

-1

result:

ok 1 number(s): "-1"

Test #55:

score: 0
Accepted
time: 1ms
memory: 3632kb

input:

21 6191328159326492

output:

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

result:

ok 21 numbers

Test #56:

score: 0
Accepted
time: 0ms
memory: 3692kb

input:

21 100000000000000000

output:

-1

result:

ok 1 number(s): "-1"

Test #57:

score: 0
Accepted
time: 0ms
memory: 3760kb

input:

21 78209209037176977

output:

-1

result:

ok 1 number(s): "-1"

Test #58:

score: 0
Accepted
time: 0ms
memory: 3696kb

input:

21 1000000000000000000

output:

-1

result:

ok 1 number(s): "-1"

Test #59:

score: 0
Accepted
time: 0ms
memory: 3692kb

input:

21 924750540534119586

output:

-1

result:

ok 1 number(s): "-1"

Test #60:

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

input:

22 100000000000000

output:

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

result:

ok 22 numbers

Test #61:

score: 0
Accepted
time: 1ms
memory: 3668kb

input:

22 81076307833447

output:

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

result:

ok 22 numbers

Test #62:

score: 0
Accepted
time: 0ms
memory: 3636kb

input:

22 1000000000000000

output:

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

result:

ok 22 numbers

Test #63:

score: 0
Accepted
time: 0ms
memory: 3696kb

input:

22 784179856137365

output:

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

result:

ok 22 numbers

Test #64:

score: 0
Accepted
time: 1ms
memory: 3632kb

input:

22 10000000000000000

output:

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

result:

ok 22 numbers

Test #65:

score: 0
Accepted
time: 1ms
memory: 3636kb

input:

22 9625464441630667

output:

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

result:

ok 22 numbers

Test #66:

score: 0
Accepted
time: 1ms
memory: 3664kb

input:

22 100000000000000000

output:

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

result:

ok 22 numbers

Test #67:

score: 0
Accepted
time: 1ms
memory: 3628kb

input:

22 58720645858880344

output:

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

result:

ok 22 numbers

Test #68:

score: 0
Accepted
time: 0ms
memory: 3688kb

input:

22 1000000000000000000

output:

-1

result:

ok 1 number(s): "-1"

Test #69:

score: 0
Accepted
time: 1ms
memory: 3636kb

input:

22 797466650913412732

output:

-1

result:

ok 1 number(s): "-1"

Test #70:

score: 0
Accepted
time: 0ms
memory: 3692kb

input:

23 100000000000000

output:

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

result:

ok 23 numbers

Test #71:

score: 0
Accepted
time: 1ms
memory: 3640kb

input:

23 77446528780149

output:

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

result:

ok 23 numbers

Test #72:

score: 0
Accepted
time: 1ms
memory: 3700kb

input:

23 1000000000000000

output:

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

result:

ok 23 numbers

Test #73:

score: 0
Accepted
time: 0ms
memory: 3752kb

input:

23 513430032264138

output:

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

result:

ok 23 numbers

Test #74:

score: 0
Accepted
time: 1ms
memory: 3768kb

input:

23 10000000000000000

output:

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

result:

ok 23 numbers

Test #75:

score: 0
Accepted
time: 1ms
memory: 3688kb

input:

23 8059600723934841

output:

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

result:

ok 23 numbers

Test #76:

score: 0
Accepted
time: 1ms
memory: 3752kb

input:

23 100000000000000000

output:

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

result:

ok 23 numbers

Test #77:

score: 0
Accepted
time: 1ms
memory: 3704kb

input:

23 62604119535359335

output:

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

result:

ok 23 numbers

Test #78:

score: 0
Accepted
time: 1ms
memory: 3636kb

input:

23 1000000000000000000

output:

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

result:

ok 23 numbers

Test #79:

score: 0
Accepted
time: 1ms
memory: 3696kb

input:

23 670182765587673173

output:

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

result:

ok 23 numbers

Test #80:

score: -100
Wrong Answer
time: 1ms
memory: 3644kb

input:

30 100000000000000

output:

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

result:

wrong answer 2nd numbers differ - expected: '3', found: '7'