#include <bits/stdc++.h>
using namespace std;
const int MAXN = 2e3 + 25;
vector <int> merge (int x, vector <int> a, vector <int> b) {
vector <int> ret = {x};
reverse(a.begin(), a.end()); reverse(b.begin(), b.end());
for (int i = 0; ; i++) {
if (a.empty() || b.empty()) break;
for (int k = 0; k < (1 << i); k++) {
ret.push_back(a.back()); a.pop_back();
}
for (int k = 0; k < (1 << i); k++) {
ret.push_back(b.back()); b.pop_back();
}
}
return ret;
}
int nn, n, a[MAXN];
map <pair <int, int>, vector <int>> memo;
vector <int> ans (int pos, int x) {
if (memo.count({pos, x})) {
return memo[{pos, x}];
}
if (2 * pos > n) {
return {x};
}
if (2 * pos + 1 > n) {
if (a[2 * pos] > x) {
return {x, a[2 * pos]};
} else {
return {a[2 * pos], x};
}
}
return memo[{pos, x}] = min({
merge(x, ans(2 * pos, a[2 * pos]), ans(2 * pos + 1, a[2 * pos + 1])),
merge(a[2 * pos], ans(2 * pos, x), ans(2 * pos + 1, a[2 * pos + 1])),
merge(a[2 * pos + 1], ans(2 * pos, a[2 * pos]), ans(2 * pos + 1, x)),
merge(a[2 * pos + 1], ans(2 * pos, x), ans(2 * pos + 1, a[2 * pos]))
});
}
void solve () {
cin >> n; nn = n;
for (int i = 1; i <= n; i++) {
cin >> a[i];
}
while (__builtin_popcount(n) != 1) {
a[++n] = n;
}
auto g = ans(1, a[1]);
for (int j = 0; j < nn; j++) {
cout << g[j] << " ";
}
cout << '\n';
}
signed main () {
ios::sync_with_stdio(0); cin.tie(0);
int tc = 1; //cin >> tc;
while (tc--) solve();
}
Compilation message
swap.cpp: In function 'void solve()':
swap.cpp:47:5: warning: operation on 'n' may be undefined [-Wsequence-point]
47 | a[++n] = n;
| ^~~
swap.cpp:47:5: warning: operation on 'n' may be undefined [-Wsequence-point]
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
344 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
344 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
344 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
6 ms |
1116 KB |
Output is correct |
| 12 |
Correct |
11 ms |
1324 KB |
Output is correct |
| 13 |
Correct |
6 ms |
1112 KB |
Output is correct |
| 14 |
Correct |
6 ms |
1116 KB |
Output is correct |
| 15 |
Correct |
7 ms |
1116 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
344 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
6 ms |
1116 KB |
Output is correct |
| 12 |
Correct |
11 ms |
1324 KB |
Output is correct |
| 13 |
Correct |
6 ms |
1112 KB |
Output is correct |
| 14 |
Correct |
6 ms |
1116 KB |
Output is correct |
| 15 |
Correct |
7 ms |
1116 KB |
Output is correct |
| 16 |
Runtime error |
0 ms |
604 KB |
Execution killed with signal 11 |
| 17 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
344 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
6 ms |
1116 KB |
Output is correct |
| 12 |
Correct |
11 ms |
1324 KB |
Output is correct |
| 13 |
Correct |
6 ms |
1112 KB |
Output is correct |
| 14 |
Correct |
6 ms |
1116 KB |
Output is correct |
| 15 |
Correct |
7 ms |
1116 KB |
Output is correct |
| 16 |
Runtime error |
0 ms |
604 KB |
Execution killed with signal 11 |
| 17 |
Halted |
0 ms |
0 KB |
- |
