#include<bits/stdc++.h>
// #pragma GCC target ("avx,avx2,fma")
// #pragma GCC optimize("Ofast")
// #pragma GCC optimize("unroll-loops")
typedef long long ll;
typedef long double ld;
#define SPEED ios_base::sync_with_stdio(false); cin.tie(0), cout.tie(0)
#define rall(v) (v).rbegin(),(v).rend()
#define all(v) (v).begin(),(v).end()
#define OK cerr<<"OK"<<endl<<flush
#define pii pair<int, int>
#define pll pair<ll, ll>
#define pb push_back
#define F first
#define S second
#define y0 jahdakdh
#define y1 jahsadakdakdh
#define endl '\n'
using namespace std;
const ll MOD=1e9+7;
// mt19937 rng(std::chrono::system_clock::now().time_since_epoch().count());
ll n, s, b, a[2005], dp[2005][2005];
bool check(int w)
{
dp[0][0]=0;
ll pos, x;
for(int i=0; i<=min(n, s); i++)
{
for(int j=0; j<=min(n, b); j++)
{
if(!i and !j) continue;
if(i)
{
x=pos=dp[i-1][j];
while(x<n and a[pos]+w-1>=a[x]) x++;
}
dp[i][j]=x;
if(j)
{
x=pos=dp[i][j-1];
while(x<n and a[pos]+2*w-1>=a[x]) x++;
}
dp[i][j]=max(x, dp[i][j]);
}
}
/*cout<<w<<endl;
for(int i=0; i<=min(n, s); i++, cout<<endl)
{
for(int j=0; j<=min(n, b); j++)
{
cout<<dp[i][j]<<' ';
}
}*/
return dp[min(n, s)][min(n, b)]>=n;
}
int main()
{
SPEED;
cin>>n>>s>>b;
for(int i=0; i<n; i++)
cin>>a[i];
sort(a, a+n);
ll l=1, r=1e9, mid;
while(l<=r)
{
mid=(l+r)>>1;
if(check(mid)) r=mid-1;
else l=mid+1;
}
cout<<l<<endl;
return 0;
}
Compilation message
watching.cpp: In function 'bool check(int)':
watching.cpp:28:13: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
28 | ll pos, x;
| ^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
