#include <cstdio>
#include <queue>
#include <bitset>
#include <cstring>
#include <cassert>
#include <algorithm>
#include <random>
const int N = 50005;
int n, a[N], top[N], dep[N], dist[N];
std::bitset<N> g[N];
int main() {
scanf("%d", &n);
for (int i = 0; i < n; ++i) {
scanf("%d", a + i);
--a[i];
}
for (int i = 0; i < n; ++i) for (int j = i + 1; j < n; ++j) if (a[i] > a[j]) g[i][j] = g[j][i] = 1;
std::bitset<N> active;
for (int i = 0; i < n; ++i) {
active.set();
active[i] = 0;
std::queue<int> q;
q.push(i);
for (int i = 0; i < n; ++i) dist[i] = 0;
while (!q.empty()) {
int v = q.front();
q.pop();
int to;
while ((to = (active & g[v])._Find_first()) < N) {
dist[to] = dist[v] + 1;
q.push(to);
active[to] = 0;
}
}
int ans = 0;
for (int i = 0; i < n; ++i) ans += dist[i];
printf("%d ", ans);
}
printf("\n");
return 0;
}
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 31 32 33 34 35 36 37 38 39 40 41 42 43 | #include <cstdio> #include <queue> #include <bitset> #include <cstring> #include <cassert> #include <algorithm> #include <random> const int N = 50005; int n, a[N], top[N], dep[N], dist[N]; std::bitset<N> g[N]; int main() { scanf("%d", &n); for (int i = 0; i < n; ++i) { scanf("%d", a + i); --a[i]; } for (int i = 0; i < n; ++i) for (int j = i + 1; j < n; ++j) if (a[i] > a[j]) g[i][j] = g[j][i] = 1; std::bitset<N> active; for (int i = 0; i < n; ++i) { active.set(); active[i] = 0; std::queue<int> q; q.push(i); for (int i = 0; i < n; ++i) dist[i] = 0; while (!q.empty()) { int v = q.front(); q.pop(); int to; while ((to = (active & g[v])._Find_first()) < N) { dist[to] = dist[v] + 1; q.push(to); active[to] = 0; } } int ans = 0; for (int i = 0; i < n; ++i) ans += dist[i]; printf("%d ", ans); } printf("\n"); return 0; } |
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