#pragma GCC optimize("Ofast,unroll-loops")
#include<bits/stdc++.h>
#define int long long
//#define ll long long
#define down cout<<'\n';
#define debug cout<<" cucuucucuuu",down
#define NHP ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
#define modwwe int t;cin>>t; while(t--)
#define bit(i,j) (i>>j&1)
#define sobit(a) __builtin_popcountll(a)
#define task "test"
#define fin(x) freopen(x".inp","r",stdin)
#define fou(x) freopen(x".out","w",stdout)
#define pb push_back
#define checktime cerr << (double)clock() / CLOCKS_PER_SEC * 1000 << " ms";
using namespace std;
#define getchar_unlocked getchar
inline int scan()
{
char c = getchar_unlocked();
int x = 0;
while (c < '0' || c > '9')
{
c = getchar_unlocked();
}
while (c >= '0' && c <= '9')
{
x = (x << 1) + (x << 3) + c - '0';
c = getchar_unlocked();
}
return x;
}
void phongbeo();
const int inf = 1e18;
const int mod2 = 1e9 + 9;
const int mod1 = 998244353;
struct icd
{
long double a;
int b;
};
struct ib
{
int a;
int b;
};
struct ic
{
int a, b, c;
};
struct id
{
int a, b, c, d;
};
struct ie
{
int a, b, c, d, e;
};
int n, m, s1, s2, s4, s3, sf, k, s5, s6, mx, s7, s8, s9, mx2, res, dem2 = 0, dem = 0, s33, dem3, dem4, l, r, mid, l2, r2, center;
int i, s10, s12,k1,k2,s11;
int kk;
int el = 19;
main()
{
fin(task);
fou(task);
NHP
/// cin>>s1;
///modwwe
phongbeo();
// checktime
}
vector<int> a;
int dp[2007][2007];
bool check(int x)
{
for(int i=0; i<=n+1; i++)
for(int j=0; j<=k1; j++)
dp[i][j]=k2+1;
dp[1][0]=0;
for(int i=1; i<=n; i++)
for(int j=0; j<=k1; j++)
{
if(dp[i][j]==k2+1) continue;
s3=a[i]+x;
s3=lower_bound(a.begin(),a.end(),s3)-a.begin();
dp[s3][j+1]=min(dp[i][j],dp[s3][j+1]);
s3=a[i]+2*x;
s3=lower_bound(a.begin(),a.end(),s3)-a.begin();
dp[s3][j]=min(dp[s3][j],dp[i][j]+1);
}
for(int j=0; j<=k1; j++)
if(dp[n+1][j]<=k2)
return 1;
return 0;
}
void phongbeo()
{
cin>>n>>k1>>k2;
k1=min(k1,n);
k2=min(k2,n);
a.resize(n+2);
for(int i=1; i<=n; i++)
cin>>a[i];
sort(a.begin(),a.end());
a.erase(unique(a.begin(), a.end()),a.end());
n=a.size()-1;
a.pb(1e14);
l=1;
r=1e9;
while(l<=r)
{
int mid=l+r>>1;
if(check(mid))r=mid-1;
else l=mid+1;
}
cout<<r+1;
}
Compilation message
watching.cpp:67:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
67 | main()
| ^~~~
watching.cpp: In function 'void phongbeo()':
watching.cpp:118:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
118 | int mid=l+r>>1;
| ~^~
watching.cpp: In function 'int main()':
watching.cpp:12:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
12 | #define fin(x) freopen(x".inp","r",stdin)
| ~~~~~~~^~~~~~~~~~~~~~~~~~~
watching.cpp:69:5: note: in expansion of macro 'fin'
69 | fin(task);
| ^~~
watching.cpp:13:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
13 | #define fou(x) freopen(x".out","w",stdout)
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~
watching.cpp:70:5: note: in expansion of macro 'fou'
70 | fou(task);
| ^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
