173 lines
3.3 KiB
C++

/* Problem URL: https://codeforces.com/edu/course/2/lesson/2/2/practice/contest/269103/problem/A */
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
template <class T, class comp = less<>>
using ordered_set = tree<T, null_type , comp , rb_tree_tag , tree_order_statistics_node_update>;
#define V vector
#define rmin(a, b) a = min(a, b)
#define rmax(a, b) a = max(a, b)
#define rep(i, lim) for (int i = 0; i < (lim); i++)
#define nrep(i, s, lim) for (int i = s; i < (lim); i++)
#define repv(i, v) for (auto &i : (v))
#define fillv(v) for (auto &itr_ : (v)) { cin >> itr_; }
#define sortv(v) sort(v.begin(), v.end())
#define all(v) (v).begin(), (v).end()
using vi = vector<int>;
using vvi = vector<vi>;
using vvvi = vector<vvi>;
using vvvvi = vector<vvvi>;
using ll = long long;
using vl = vector<ll>;
using vvl = vector<vl>;
using vvvl = vector<vvl>;
using vvvvl = vector<vvvl>;
template<class v>
auto operator<<(ostream &os, const vector<v> &vec)->ostream& {
os << vec[0];
for (size_t i = 1; i < vec.size(); i++) {
os << ' ' << vec[i];
}
os << '\n';
return os;
}
template<class v>
auto operator>>(istream &is, vector<v> &vec)->istream& {
for (auto &i : vec) {
is >> i;
}
return is;
}
template<class v>
auto operator<<(ostream &os, const vector<vector<v>> &vec)->ostream& {
for (auto &i : vec) {
os << i[0];
for (size_t j = 1; j < i.size(); j++) {
os << ' ' << i[j];
}
os << '\n';
}
return os;
}
template<class v>
auto operator>>(istream &is, vector<vector<v>> &vec)->istream& {
for (auto &i : vec) {
for (auto &j : i) {
is >> j;
}
}
return is;
}
const int oo = INT32_MAX >> 1;
const ll OO = INT64_MAX >> 1;
void pre()
{
}
#define TEST 0
void solve()
{
string a;
cin >> a;
a.push_back('$');
int n = a.size();
vi p(n);
vi c(max(256, n));
rep(i, n) {
c[a[i]]++;
}
nrep(i, 1, c.size()) {
c[i] += c[i - 1];
}
rep(i, n) {
c[a[i]]--;
p[c[a[i]]] = i;
}
vi suf(n);
suf[p[0]] = 0;
nrep(i, 1, n) {
suf[p[i]] = suf[p[i - 1]];
if (a[p[i]] != a[p[i - 1]]) {
suf[p[i]]++;
}
}
vi pn(n);
vi cn(c.size());
for (int j = 0; (1 << j) < n; j++) {
rep(i, n) {
pn[i] = p[i] - (1 << j);
pn[i] += n * (pn[i] < 0);
}
fill(all(c), 0);
rep(i, n) {
c[suf[pn[i]]]++;
}
nrep(i, 1, c.size()) {
c[i] += c[i - 1];
}
for (int i = n - 1; i >= 0; i--) {
c[suf[pn[i]]]--;
p[c[suf[pn[i]]]] = pn[i];
}
cn[p[0]] = 0;
nrep(i, 1, n) {
pair<int, int> cur = {suf[p[i]], suf[(p[i] + (1 << j)) % n]};
pair<int, int> prev = {suf[p[i - 1]], suf[(p[i - 1] + (1 << j)) % n]};
cn[p[i]] = cn[p[i - 1]];
if (cur != prev) {
cn[p[i]]++;
}
}
swap(suf, cn);
}
cout << p;
}
int main()
{
ios::sync_with_stdio(false);
cin.tie(nullptr);
pre();
int t;
(TEST && cin >> t) || (t = 1);
while (t--) {
solve();
}
}