This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
const int N = 1000001;
int color[N], tally[N], ans[N];
map<int, int> pairs[N];
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int n, m;
cin >> n >> m;
for (int i = 0; i < n; ++i) {
cin >> color[i];
++tally[color[i]];
}
multiset<int> maxi = {0};
for (int i = 1; i <= m; ++i) {
maxi.insert(tally[i]);
ans[i] = INT_MAX;
}
for (int k = 0; k < 2; ++k) {
fill(pairs, pairs + m + 1, map<int, int>());
for (int i = k; i + 2 <= n; i += 2) {
if (color[i] != color[i + 1]) {
++pairs[color[i]][color[i + 1]];
++pairs[color[i + 1]][color[i]];
}
}
for (int i = 1; i <= m; ++i) {
maxi.erase(maxi.find(tally[i]));
for (auto [j, k] : pairs[i]) {
maxi.erase(maxi.find(tally[j]));
maxi.insert(tally[j] - k);
}
ans[i] = min(ans[i], n - tally[i] - *(--maxi.end()));
for (auto [j, k] : pairs[i]) {
maxi.erase(maxi.find(tally[j] - k));
maxi.insert(tally[j]);
}
maxi.insert(tally[i]);
}
}
for (int i = 1; i <= m; ++i) {
cout << ans[i] << "\n";
}
}
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