/*
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*/
#pragma GCC optimize("fast-math")
#pragma GCC optimize("unroll-loops")
#include <iostream>
#include <iostream>
#include <vector>
#include <algorithm>
#include <iomanip>
#include <tuple>
#include <math.h>
#include <set>
#include <stack>
#include <bitset>
#include <map>
#include <queue>
#include <random>
#include <unordered_set>
#include <unordered_map>
#define DEBUG
#define fi first
#define se second
#define pqueue priority_queue
#define pb(x) push_back(x)
//#define endl '\n'
#define all(x) x.begin(), x.end()
#define int long long
#define mk(a, b) make_pair(a, b)
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef vector<int> vi;
typedef vector<vector<int> > vvi;
typedef vector<ull> vull;
typedef vector<ll> vll;
// typedef tuple<ll, ll, ll> tiii;
typedef pair<int, int> pii;
typedef vector<pair<int, int> > vpii;
typedef pair<ll, ll> pll;
typedef vector<bool> vb;
typedef vector<string> vs;
typedef vector< vector<ll> > vvll;
typedef vector<char> vc;
const ll INF = 1e9 + 228;
const ll INFLL = 1e18;
const ll MOD = 1e9 + 7;
//static const int maxn = 1e6 + 228;
const ld eps = 1e-6;
const ld eps2 = 1e-9;
const ll MOD2 = 998244353;
const ll dosz = 5e5;
const ll SZ = (1<<18);
const ld PI = atan2l(0, -1);
void fast_io(){
ios_base::sync_with_stdio(0);
cin.tie(0);
// freopen("empty.in", "r", stdin);
// freopen("empty.out", "w", stdout);
}
int n, p, q;
vi nums;
bool check(int mid){
vvi dp(n+1, vi(q+1, INF));
dp[0].assign(q+1, 0);
int cur1 = 1, cur2 = 1;
for(int i=1; i<=n; i++){
while((nums[i-1]-nums[cur1-1])>=mid && cur1<i){
cur1++;
}
while((nums[i-1]-nums[cur2-1])>=mid*2 && cur2<i){
cur2++;
}
for(int j=1; j<=q; j++){
dp[i][j] = min(dp[i][j], dp[cur2-1][j-1]);
}
for(int j=0; j<=q; j++){
dp[i][j] = min(dp[i][j], dp[cur1-1][j]+1);
}
}
return (dp[n][q]<=p);
}
void solve(){
cin >> n >> p >> q;
nums.resize(n);
set<int> kek;
for(int &i:nums){
cin >> i;
kek.insert(i);
}
nums.clear();
for(int i:kek)
nums.pb(i);
n = kek.size();
// sort(all(nums));
p = min(n, p);
q = min(n, q);
int l = 1, r = 1e9;
int ans = 0;
while(l<=r){
int mid = (l+r)/2;
if(check(mid)){
ans = mid;
r = mid-1;
} else{
l = mid+1;
}
}
cout << ans << endl;
}
signed main(){
fast_io();
srand(time(NULL));
// cout << fixed << setprecision(12);
int q = 1;
// cin >> q;
while(q--)
solve();
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
4 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
384 KB |
Output is correct |
| 4 |
Correct |
5 ms |
384 KB |
Output is correct |
| 5 |
Correct |
6 ms |
384 KB |
Output is correct |
| 6 |
Correct |
6 ms |
384 KB |
Output is correct |
| 7 |
Correct |
6 ms |
384 KB |
Output is correct |
| 8 |
Correct |
5 ms |
384 KB |
Output is correct |
| 9 |
Correct |
5 ms |
384 KB |
Output is correct |
| 10 |
Correct |
5 ms |
384 KB |
Output is correct |
| 11 |
Correct |
5 ms |
384 KB |
Output is correct |
| 12 |
Correct |
5 ms |
384 KB |
Output is correct |
| 13 |
Correct |
5 ms |
384 KB |
Output is correct |
| 14 |
Correct |
5 ms |
384 KB |
Output is correct |
| 15 |
Correct |
5 ms |
384 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
9 ms |
512 KB |
Output is correct |
| 2 |
Correct |
4 ms |
384 KB |
Output is correct |
| 3 |
Correct |
604 ms |
24140 KB |
Output is correct |
| 4 |
Correct |
32 ms |
1880 KB |
Output is correct |
| 5 |
Correct |
761 ms |
31828 KB |
Output is correct |
| 6 |
Correct |
763 ms |
31796 KB |
Output is correct |
| 7 |
Correct |
11 ms |
768 KB |
Output is correct |
| 8 |
Correct |
290 ms |
12500 KB |
Output is correct |
| 9 |
Correct |
48 ms |
2552 KB |
Output is correct |
| 10 |
Correct |
36 ms |
2052 KB |
Output is correct |
| 11 |
Correct |
776 ms |
30448 KB |
Output is correct |
| 12 |
Correct |
391 ms |
15984 KB |
Output is correct |
| 13 |
Correct |
13 ms |
872 KB |
Output is correct |
| 14 |
Correct |
10 ms |
768 KB |
Output is correct |
| 15 |
Correct |
13 ms |
840 KB |
Output is correct |
