# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
381341 | AdiZer0 | Doktor (COCI17_doktor) | C++17 | 1099 ms | 2284 KiB |
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>
#define pb push_back
#define whole(x) x.begin(), x.end()
#define sz(x) (int)x.size()
using namespace std;
typedef long long ll;
typedef long double ld;
const int N = (int)5e5 + 7;
const int INF = (int)1e9 + 7;
const ll linf = (ll)1e18 + 1;
int a[N];
int main() {
int n; scanf ("%d", &n);
int ans = 0, ansL = -1, ansR = -1;
for (int i = 1; i <= n; ++i) {
scanf ("%d", a + i);
if (a[i] == i) ++ans;
ansL = ansR = a[i];
}
for (int i = 1; i <= n; ++i) {
if (a[i] == i) continue;
int l = i, r = a[i];
if (l > r) swap(l, r);
int cur = 0;
while (l <= r) {
if (l == a[r]) ++cur;
if (r == a[l]) ++cur;
l++, r--;
}
if (cur > ans) {
ans = cur;
if (a[i] < i) ansL = a[a[i]], ansR = a[i];
else ansL = a[i], ansR = a[a[i]];
}
}
printf ("%d %d\n", ansL, ansR);
return 0;
}
Compilation message (stderr)
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