QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#473076 | #8529. Balance of Permutation | GenshinImpactsFault# | TL | 6926ms | 44588kb | C++14 | 2.4kb | 2024-07-11 21:38:41 | 2024-07-11 21:38:42 |
Judging History
answer
#include <bits/stdc++.h>
#pragma GCC optimize(3)
using namespace std;
const int N = 35;
const int M = N * N / 2;
int n, b, mxb;
__int128 m;
bool used[N];
__int128 f[2][N * N][N][N];
int mu[N][N], ad[N][N];
int a[N], cur_cnt = 0, cur_b = 0;
void read(__int128 &x) {
x = 0; char c = getchar();
for(; c < '0' || c > '9'; c = getchar());
for(; c >= '0' && c <= '9'; c = getchar())
x = x * 10 + (c - '0');
}
void print(__int128 x) {
if(x > 9) print(x / 10);
putchar(x % 10 + '0');
}
__int128 calc(int x, int cnt, int bb) {
for(int i = 0; i < 2; i++)
for(int j = M - mxb; j <= M + mxb; j++)
for(int k = 0; k <= n + 1; k++)
for(int h = 0; h <= n + 1; h++)
f[i][j][k][h] = 0;
f[x & 1][M + bb][cnt][0] = 1;
for(int i = x + 1; i <= n; i++) {
int cur = i & 1;
int pre = cur ^ 1;
for(int j = M - mxb; j <= M + mxb; j++)
for(int k = 0; k <= n; k++)
for(int h = 0; h <= n; h++) {
f[cur][j][k][h] = 0;
}
for(int j = M - mxb; j <= M + mxb; j++)
for(int k = 0; k <= n; k++)
for(int h = 0; h <= n; h++) {
if(!f[pre][j][k][h]) continue;
if(!used[i]) {
f[cur][j][k][h] += ad[k][h] * f[pre][j][k][h];
f[cur][j - 2 * i][k + 1][h + 1] += f[pre][j][k][h];
if(k && h) f[cur][j + 2 * i][k - 1][h - 1] += mu[k][h] * f[pre][j][k][h];
}
else {
f[cur][j][k][h + 1] += f[pre][j][k][h];
if(k) f[cur][j + 2 * i][k - 1][h] += k * f[pre][j][k][h];
}
}
}
return f[n & 1][M + b][0][0];
}
int main() {
// int cur = clock();
cin >> n >> b; read(m);
for(int i = 1; i <= n; i++) mxb += abs(n - i + 1 - i);
for(int i = 0; i <= n; i++)
for(int j = 0; j <= n; j++)
mu[i][j] = i * j, ad[i][j] = 1 + i + j;
// mxb = n * n;
for(int i = 1; i <= n; i++) {
for(int j = 1; j <= n; j++) {
if(used[j]) continue;
used[j] = 1, a[i] = j;
int nxt_cnt = 0;
for(int k = 1; k <= i; k++) if(!used[k]) ++nxt_cnt;
int nxt_b = cur_b;
if(j > i) nxt_b += -i;
if(j < i) nxt_b += i;
bool flag = 0;
for(int k = 1; k < i; k++) {
if(a[k] == i) flag = 1;
}
if(flag) nxt_b += i;
else if(a[i] != i) nxt_b -= i;
__int128 rem = calc(i, nxt_cnt, nxt_b);
if(rem >= m) {
cur_cnt = nxt_cnt, cur_b = nxt_b;
break;
}
else {
used[j] = 0;
m -= rem;
}
}
}
for(int i = 1; i <= n; i++) cout << a[i] << " ";
cout << "\n";
// cout << clock() - cur << "\n";
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 1ms
memory: 9844kb
input:
6 6 6
output:
1 2 6 3 4 5
result:
ok 6 numbers
Test #2:
score: 0
Accepted
time: 6665ms
memory: 44588kb
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: 1ms
memory: 7736kb
input:
1 0 1
output:
1
result:
ok 1 number(s): "1"
Test #4:
score: 0
Accepted
time: 0ms
memory: 9848kb
input:
2 0 1
output:
1 2
result:
ok 2 number(s): "1 2"
Test #5:
score: 0
Accepted
time: 0ms
memory: 7796kb
input:
2 2 1
output:
2 1
result:
ok 2 number(s): "2 1"
Test #6:
score: 0
Accepted
time: 1ms
memory: 7740kb
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: 11748kb
input:
7 20 100
output:
3 6 7 4 1 5 2
result:
ok 7 numbers
Test #8:
score: 0
Accepted
time: 1ms
memory: 9788kb
input:
7 2 6
output:
2 1 3 4 5 6 7
result:
ok 7 numbers
Test #9:
score: 0
Accepted
time: 2ms
memory: 9760kb
input:
7 24 1
output:
4 5 6 7 1 2 3
result:
ok 7 numbers
Test #10:
score: 0
Accepted
time: 2ms
memory: 9856kb
input:
7 22 360
output:
7 6 4 3 5 2 1
result:
ok 7 numbers
Test #11:
score: 0
Accepted
time: 2ms
memory: 9768kb
input:
7 20 358
output:
5 7 2 4 6 3 1
result:
ok 7 numbers
Test #12:
score: 0
Accepted
time: 8ms
memory: 11900kb
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: 7ms
memory: 11804kb
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: 2643ms
memory: 32316kb
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: 4524ms
memory: 34352kb
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: 4640ms
memory: 36324kb
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: 4907ms
memory: 38488kb
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: 5306ms
memory: 40440kb
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: 6926ms
memory: 42540kb
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: -100
Time Limit Exceeded
input:
30 400 46479902466857426153849991132