#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("-O3")
#pragma GCC optimize("Ofast")
//#pragma GCC optimize("fast-math")
//#pragma GCC optimize("no-stack-protector")
#define F first
#define S second
#define sz(x) int(x.size())
#define pb push_back
#define pf push_front
#define N 100050
#define M ll(1e9 + 7)
#define inf 1e9 + 1e9
using namespace std;
//using namespace __gnu_pbds;
typedef long double ld;
typedef long long ll;
typedef unsigned long long ull;
typedef short int si;
typedef array <ll, 3> a3;
typedef array <ll, 5> a5;
//typedef tree <ll, null_type, less_equal<ll>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;
pair <int, int> t[4 * N][51];
int f[4 * N];
int n, k, m, a[N];
multiset <int> se;
void comb(int v, int tl, int tr)
{
if (f[v] != 0) se.erase(se.find(f[v]));
int l = v + v, r = v + v + 1, ml = -1, mr = -1;
bool bad = 0;
for (int i = 1; i <= k; i++)
{
t[v][i] = {0, 0};
if (t[l][i].F != 0) t[v][i].F = t[l][i].F;
else if (t[r][i].F != 0) t[v][i].F = t[r][i].F;
if (t[r][i].S != 0) t[v][i].S = t[r][i].S;
else if (t[l][i].S != 0) t[v][i].S = t[l][i].S;
if (t[v][i].F == 0) {bad = 1; continue;}
if (t[l][i].F != 0 && t[r][i].F != 0) continue;
if (t[l][i].F == 0)
{
if (mr == -1) mr = t[r][i].F;
else mr = max(mr, t[r][i].F);
}
else
{
if (ml == -1) ml = t[l][i].S;
else ml = min(ml, t[l][i].S);
}
}
int l1 = mr, r1 = mr, l2 = ml, r2 = ml;
if (ml != -1 && mr != -1)
for (int i = 1; i <= k; i++)
{
if (t[l][i].F != 0 && (t[r][i].F == 0 || t[r][i].F > r1)) l1 = min(l1, t[l][i].S);
if (t[r][i].F != 0 && (t[l][i].F == 0 || t[l][i].S < l2)) r2 = max(r2, t[r][i].F);
}
if (bad) f[v] = 0;
else if (ml != -1 && mr != -1) {f[v] = min(r1 - l1 + 1, r2 - l2 + 1); se.insert(f[v]);}
else f[v] = 0;
}
void bld(int v, int tl, int tr)
{
if (tl == tr)
{
t[v][a[tl]] = {tl, tr};
return;
}
int md = (tl + tr) >> 1;
bld(v + v, tl, md); bld(v + v + 1, md + 1, tr);
comb(v, tl, tr);
}
void upd(int v, int tl, int tr, int pos, int val)
{
if (tl == tr)
{
t[v][a[tl]] = {0, 0};
a[tl] = val;
t[v][a[tl]] = {tl, tr};
return;
}
int md = (tl + tr) >> 1;
if (pos <= md) upd(v + v, tl, md, pos, val);
else upd(v + v + 1, md + 1, tr, pos, val);
comb(v, tl, tr);
}
int main()
{
//freopen("input.txt", "r", stdin); //freopen("output4.txt", "w", stdout);
ios_base::sync_with_stdio(0); istream::sync_with_stdio(0); cin.tie(0); cout.tie(0);
cin >> n >> k >> m;
for (int i = 1; i <= n; i++) cin >> a[i];
bld(1, 1, n);
for (; m > 0; m--)
{
int t;
cin >> t;
if (t == 1)
{
int p, x;
cin >> p >> x;
upd(1, 1, n, p, x);
continue;
}
if (k == 1) {cout << 1 << '\n'; continue;}
if (sz(se) == 0) {cout << "-1" << '\n'; continue;}
cout << *se.begin() << '\n';
}
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
9 ms |
3712 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
17 ms |
4608 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
30 ms |
6656 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
265 ms |
26620 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
405 ms |
53216 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
561 ms |
53368 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
627 ms |
53368 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
612 ms |
53384 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
762 ms |
106232 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
753 ms |
106104 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
