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Copy pathCyclic_Shift.cpp
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97 lines (89 loc) · 2.26 KB
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#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
void solve(){
int n;
cin>>n;
vector<int> a(n);
for (int i =0;i<n;i++) {
cin>>a[i];
}
int minn = *min_element(a.begin(), a.end());
vector<int> b(2*n);
for (int i = 0; i < 2 * n; i++) {
b[i] = a[i % n];
}
vector<int> nxt(2*n,-1);
stack<int> st;
for (int i= 2*n -1;i>=0;i--) {
while (!st.empty() && b[st.top()] <= b[i]) st.pop();
if (!st.empty()) nxt[i] = st.top();
st.push(i);
}
vector<int> NXT(n, -1);
for (int i = 0; i < n; i++) {
if (nxt[i] != -1 && nxt[i] < i + n) {
NXT[i] = nxt[i] % n;
}
}
vector<int> ord(n);
iota(ord.begin(), ord.end(), 0);
sort(ord.begin(), ord.end(), [&](int x, int y) {
return a[x] > a[y];
});
vector<int> rnk(n,0);
int i = 0;
while (i < n) {
int j = i;
int v = a[ord[i]];
while (j < n && a[ord[j]] == v) j++;
vector<tuple<long long, int, int, int>> keys;
for (int k = i; k < j; k++) {
int pos = ord[k];
if (NXT[pos] == -1) {
keys.push_back({-(long long)n, -1, -1, pos});
} else {
int np = NXT[pos];
long long d = (np - pos + n) % n;
keys.push_back({-d, a[np], rnk[np], pos});
}
}
sort(keys.begin(), keys.end());
int cur = 0;
for (int k = 0; k < (int)keys.size(); k++) {
if (k > 0 && keys[k] != keys[k - 1]) cur++;
rnk[get<3>(keys[k])] = cur;
}
i = j;
}
int ans = -1, best = INT_MAX;
for (int pos = 0; pos < n; pos++) {
if (a[pos] == minn) {
if (rnk[pos] < best || (rnk[pos] == best && (ans == -1 || pos < ans))) {
best = rnk[pos];
ans = pos;
}
}
}
vector<int> c(n);
int cur = 0;
for (int k = 0; k < n; k++) {
int val = a[(ans + k) % n];
cur = max(cur, val);
c[k] = cur;
}
for (int k = 0; k < n; k++) {
cout << c[k] <<" ";
}
cout<<endl;
}
int main () {
ios::sync_with_stdio(0);
cin.tie(0);
int T =1;
cin>>T;
while(T--){
solve();
}
return 0;
}