#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#pragma GCC optimization("unroll-loops")
/// author: LilPluton auuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu
#define OPT ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define intt long long
#define int ll
#define ll long long
#define pb push_back
#define arr array
#define vll vector<int>
#define fi first
#define se second
#define rep(i,j,k) for(int i = j; i <= k; ++i)
#define all(a) a.begin(),a.end()
#define pii pair<int,int>
#define endll '\n'
using namespace std;
const int INF = 1e18;
const int N = 1e5 + 5;
bool check(vector<int>& a, int p,int q,int w)
{
int n = a.size();
int s = 0, l = 0;
int i = 0;
while(i < n)
{
if(l < q)
{
int en = a[i] + 2 * w;
l++;
while(i < n && a[i] <= en)
++i;
}
else if(s < p)
{
int en = a[i] + w;
s++;
while(i < n && a[i] <= en)
{
++i;
}
}
else
return false;
}
return true;
}
signed main()
{
OPT
int n, p, q;
cin >> n >> p >> q;
vector<int>a(n);
for(int i = 0; i < n; ++i)
cin >> a[i];
sort(all(a));
int lb = 1, rb = 1e9;
int ans;
while(lb <= rb)
{
int mid = (lb + rb) / 2;
if(check(a,p,q,mid))
{
ans = mid;
rb = mid - 1;
}
else
{
lb = mid + 1;
}
}
cout << lb - 1;
}
Compilation message
watching.cpp:4: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
4 | #pragma GCC optimization("unroll-loops")
|
watching.cpp: In function 'int main()':
watching.cpp:62:9: warning: variable 'ans' set but not used [-Wunused-but-set-variable]
62 | int ans;
| ^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
604 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
