QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #779078 | #7778. Turning Permutation | Calculatelove | WA | 0ms | 3964kb | C++14 | 2.8kb | 2024-11-24 17:21:13 | 2024-11-24 17:21:15 |
Judging History
answer
#include <bits/stdc++.h>
typedef long long s64;
const int N = 55;
const s64 inf = 1000000000000000001;
s64 add(s64 x, s64 y) {
return x + y;
}
int n;
s64 k;
bool exist[N];
int ans[N];
int t, val[N];
s64 f[N][N][2];
s64 pre[N], suf[N];
bool solve(int now) {
if (now == n + 1) return 1;
for (int num = 1; num <= n; num ++) {
if (exist[num]) continue;
if (num == 1 || num == n || (!exist[num - 1] && !exist[num + 1]) || (exist[num - 1] && exist[num + 1])) {
exist[num] = 1, ans[now] = num;
t = 0;
for (int i = 1; i <= n; i ++)
if (!exist[i]) val[++ t] = i;
s64 cnt = 0;
if (t == 0) {
cnt = 1;
} else if (t == 1) {
cnt = 1;
} else {
int st = 2;
for (int i = 1; i <= t; i ++)
for (int j = 1; j <= i; j ++)
f[i][j][0] = f[i][j][1] = 0;
if (val[1] == 1 && val[2] == 2) {
st = 3;
if (exist[3])
f[2][2][0] = 1;
else
f[2][1][1] = 1, f[2][2][0] = 1;
} else {
f[1][1][0] = 1;
}
for (int i = st; i <= t; i ++) {
int v = val[i];
pre[0] = 0;
for (int j = 1; j <= i - 1; j ++) pre[j] = add(pre[j - 1], f[i - 1][j][1]);
suf[i] = 0;
for (int j = i - 1; j >= 1; j --) suf[j] = add(suf[j + 1], f[i - 1][j][0]);
if (exist[v - 1]) {
for (int j = 1; j <= i; j ++)
f[i][j][0] = add(pre[i - 1], suf[1]);
} else if (exist[v + 1]) {
for (int j = 1; j <= i; j ++)
f[i][j][0] = pre[j - 1];
} else {
for (int j = 1; j <= i; j ++)
f[i][j][0] = pre[j - 1], f[i][j][1] = suf[j];
}
}
if (exist[val[t] + 1])
for (int j = 1; j <= t; j ++) cnt = add(cnt, f[t][j][0]);
else
for (int j = 1; j <= t; j ++) cnt = add(cnt, f[t][j][0] + f[t][j][1]);
}
if (k > cnt)
k -= cnt, exist[num] = 0;
else
return solve(now + 1);
}
}
return 0;
}
int main() {
scanf("%d%lld", &n, &k);
if (!solve(1)) {
puts("-1");
} else {
for (int i = 1; i <= n; i ++)
printf("%d ", ans[i]);
puts("");
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3952kb
input:
3 2
output:
2 1 3
result:
ok 3 number(s): "2 1 3"
Test #2:
score: 0
Accepted
time: 0ms
memory: 3760kb
input:
3 5
output:
-1
result:
ok 1 number(s): "-1"
Test #3:
score: 0
Accepted
time: 0ms
memory: 3884kb
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: 3804kb
input:
4 11
output:
-1
result:
ok 1 number(s): "-1"
Test #5:
score: 0
Accepted
time: 0ms
memory: 3948kb
input:
3 1
output:
1 3 2
result:
ok 3 number(s): "1 3 2"
Test #6:
score: 0
Accepted
time: 0ms
memory: 3744kb
input:
3 10
output:
-1
result:
ok 1 number(s): "-1"
Test #7:
score: 0
Accepted
time: 0ms
memory: 3744kb
input:
3 52
output:
-1
result:
ok 1 number(s): "-1"
Test #8:
score: 0
Accepted
time: 0ms
memory: 3728kb
input:
3 756
output:
-1
result:
ok 1 number(s): "-1"
Test #9:
score: 0
Accepted
time: 0ms
memory: 3744kb
input:
3 7721
output:
-1
result:
ok 1 number(s): "-1"
Test #10:
score: 0
Accepted
time: 0ms
memory: 3872kb
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: 3952kb
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: 3676kb
input:
5 85
output:
-1
result:
ok 1 number(s): "-1"
Test #13:
score: 0
Accepted
time: 0ms
memory: 3612kb
input:
5 846
output:
-1
result:
ok 1 number(s): "-1"
Test #14:
score: 0
Accepted
time: 0ms
memory: 3824kb
input:
5 6957
output:
-1
result:
ok 1 number(s): "-1"
Test #15:
score: 0
Accepted
time: 0ms
memory: 3760kb
input:
8 1
output:
1 3 2 5 4 7 6 8
result:
ok 8 numbers
Test #16:
score: 0
Accepted
time: 0ms
memory: 3760kb
input:
8 7
output:
1 3 2 5 7 8 4 6
result:
ok 8 numbers
Test #17:
score: 0
Accepted
time: 0ms
memory: 3868kb
input:
8 71
output:
1 3 7 5 4 2 6 8
result:
ok 8 numbers
Test #18:
score: 0
Accepted
time: 0ms
memory: 3796kb
input:
8 863
output:
3 5 7 1 4 2 8 6
result:
ok 8 numbers
Test #19:
score: 0
Accepted
time: 0ms
memory: 3816kb
input:
8 7099
output:
-1
result:
ok 1 number(s): "-1"
Test #20:
score: 0
Accepted
time: 0ms
memory: 3876kb
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: 3960kb
input:
10 62278
output:
7 1 9 8 5 10 3 6 2 4
result:
ok 10 numbers
Test #22:
score: 0
Accepted
time: 0ms
memory: 3828kb
input:
10 1000000
output:
-1
result:
ok 1 number(s): "-1"
Test #23:
score: 0
Accepted
time: 0ms
memory: 3824kb
input:
10 572106
output:
-1
result:
ok 1 number(s): "-1"
Test #24:
score: 0
Accepted
time: 0ms
memory: 3812kb
input:
10 10000000
output:
-1
result:
ok 1 number(s): "-1"
Test #25:
score: 0
Accepted
time: 0ms
memory: 3752kb
input:
10 9715489
output:
-1
result:
ok 1 number(s): "-1"
Test #26:
score: 0
Accepted
time: 0ms
memory: 3612kb
input:
10 100000000
output:
-1
result:
ok 1 number(s): "-1"
Test #27:
score: 0
Accepted
time: 0ms
memory: 3684kb
input:
10 85089137
output:
-1
result:
ok 1 number(s): "-1"
Test #28:
score: 0
Accepted
time: 0ms
memory: 3688kb
input:
10 1000000000
output:
-1
result:
ok 1 number(s): "-1"
Test #29:
score: 0
Accepted
time: 0ms
memory: 3572kb
input:
10 906109922
output:
-1
result:
ok 1 number(s): "-1"
Test #30:
score: 0
Accepted
time: 0ms
memory: 3824kb
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: 3876kb
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: 3876kb
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: 3804kb
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: 3744kb
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: 3872kb
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: 3824kb
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: 3804kb
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: 3960kb
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: 3884kb
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: 3772kb
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: 0ms
memory: 3776kb
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: 3744kb
input:
20 1000000000000000
output:
-1
result:
ok 1 number(s): "-1"
Test #43:
score: 0
Accepted
time: 0ms
memory: 3776kb
input:
20 825683798851116
output:
-1
result:
ok 1 number(s): "-1"
Test #44:
score: 0
Accepted
time: 0ms
memory: 3704kb
input:
20 10000000000000000
output:
-1
result:
ok 1 number(s): "-1"
Test #45:
score: 0
Accepted
time: 0ms
memory: 3624kb
input:
20 7757196171989613
output:
-1
result:
ok 1 number(s): "-1"
Test #46:
score: 0
Accepted
time: 0ms
memory: 3760kb
input:
20 100000000000000000
output:
-1
result:
ok 1 number(s): "-1"
Test #47:
score: 0
Accepted
time: 0ms
memory: 3576kb
input:
20 97697763625539018
output:
-1
result:
ok 1 number(s): "-1"
Test #48:
score: 0
Accepted
time: 0ms
memory: 3776kb
input:
20 1000000000000000000
output:
-1
result:
ok 1 number(s): "-1"
Test #49:
score: 0
Accepted
time: 0ms
memory: 3580kb
input:
20 828662389005083354
output:
-1
result:
ok 1 number(s): "-1"
Test #50:
score: 0
Accepted
time: 0ms
memory: 3904kb
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: 0ms
memory: 3888kb
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: 0ms
memory: 3964kb
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: 0ms
memory: 3896kb
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: 3816kb
input:
21 10000000000000000
output:
-1
result:
ok 1 number(s): "-1"
Test #55:
score: 0
Accepted
time: 0ms
memory: 3808kb
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: 3744kb
input:
21 100000000000000000
output:
-1
result:
ok 1 number(s): "-1"
Test #57:
score: 0
Accepted
time: 0ms
memory: 3576kb
input:
21 78209209037176977
output:
-1
result:
ok 1 number(s): "-1"
Test #58:
score: 0
Accepted
time: 0ms
memory: 3704kb
input:
21 1000000000000000000
output:
-1
result:
ok 1 number(s): "-1"
Test #59:
score: 0
Accepted
time: 0ms
memory: 3812kb
input:
21 924750540534119586
output:
-1
result:
ok 1 number(s): "-1"
Test #60:
score: 0
Accepted
time: 0ms
memory: 3964kb
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: 0ms
memory: 3884kb
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: 3812kb
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: 3888kb
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: 0ms
memory: 3880kb
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: 0ms
memory: 3880kb
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: 0ms
memory: 3808kb
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: 0ms
memory: 3776kb
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: 3832kb
input:
22 1000000000000000000
output:
-1
result:
ok 1 number(s): "-1"
Test #69:
score: 0
Accepted
time: 0ms
memory: 3840kb
input:
22 797466650913412732
output:
-1
result:
ok 1 number(s): "-1"
Test #70:
score: 0
Accepted
time: 0ms
memory: 3964kb
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: 0ms
memory: 3892kb
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: 0ms
memory: 3888kb
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: 3812kb
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: 0ms
memory: 3900kb
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: 0ms
memory: 3832kb
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: 0ms
memory: 3776kb
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: 0ms
memory: 3964kb
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: 0ms
memory: 3900kb
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: 0ms
memory: 3808kb
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: 0ms
memory: 3840kb
input:
30 100000000000000
output:
-1
result:
wrong answer 1st numbers differ - expected: '1', found: '-1'