Submission #3020218


Source Code Expand

#include<bits/stdc++.h>
using namespace std;

template <typename T> void chmin(T &x,const T &y)
{
	if(x>y)x=y;
}
#define rep(i,l,r) for(int i=l;i<=r;++i)
const int N=2000+5;
int n,k,m,ans;
int a[N],b[N];
bool mark[N];
bool a_xiao(int x,int y)
{
	return a[x]<a[y];
}
int q[N],top,nq[N];
void check(int l,int r)
{
	int nt=r-l+1;
	if(nt<k)return ;
	rep(i,l,r)nq[i-l+1]=a[i];
	int can=nt-k+1;
	nth_element(nq+1,nq+can,nq+nt+1);
	rep(i,1,can)q[++top]=nq[i];
}
void check(int x)
{
	top=0;
	int last=0;
	mark[n+1]=1;
	rep(i,1,n+1)
	if(mark[i])
	{
		check(last+1,i-1);
		last=i;
	}
	if(top<m){cout<<ans;exit(0);}
	nth_element(q+1,q+m,q+top+1);
	chmin(ans,q[m]-a[x]);
	mark[x]=1;	
}

int main()
{
	//freopen("1.in","r",stdin);
	cin>>n>>k>>m;
	rep(i,1,n)scanf("%d",a+i);
	rep(i,1,n)b[i]=i;
	sort(b+1,b+n+1,a_xiao);
	ans=1e9;
	rep(i,1,n)check(b[i]);
	cout<<ans;
}

Submission Info

Submission Time
Task E - Range Minimum Queries
User kczno1
Language C++14 (GCC 5.4.1)
Score 600
Code Size 905 Byte
Status AC
Exec Time 31 ms
Memory 256 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:48:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  rep(i,1,n)scanf("%d",a+i);
                           ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 600 / 600
Status
AC × 3
AC × 54
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt
All sample_01.txt, sample_02.txt, sample_03.txt, sample_01.txt, sample_02.txt, sample_03.txt, subtask_1_01.txt, subtask_1_02.txt, subtask_1_03.txt, subtask_1_04.txt, subtask_1_05.txt, subtask_1_06.txt, subtask_1_07.txt, subtask_1_08.txt, subtask_1_09.txt, subtask_1_10.txt, subtask_1_11.txt, subtask_1_12.txt, subtask_1_13.txt, subtask_1_14.txt, subtask_1_15.txt, subtask_1_16.txt, subtask_1_17.txt, subtask_1_18.txt, subtask_1_19.txt, subtask_1_20.txt, subtask_1_21.txt, subtask_1_22.txt, subtask_1_23.txt, subtask_1_24.txt, subtask_1_25.txt, subtask_1_26.txt, subtask_1_27.txt, subtask_1_28.txt, subtask_1_29.txt, subtask_1_30.txt, subtask_1_31.txt, subtask_1_32.txt, subtask_1_33.txt, subtask_1_34.txt, subtask_1_35.txt, subtask_1_36.txt, subtask_1_37.txt, subtask_1_38.txt, subtask_1_39.txt, subtask_1_40.txt, subtask_1_41.txt, subtask_1_42.txt, subtask_1_43.txt, subtask_1_44.txt, subtask_1_45.txt, subtask_1_46.txt, subtask_1_47.txt, subtask_1_48.txt
Case Name Status Exec Time Memory
sample_01.txt AC 1 ms 256 KB
sample_02.txt AC 1 ms 256 KB
sample_03.txt AC 1 ms 256 KB
subtask_1_01.txt AC 1 ms 256 KB
subtask_1_02.txt AC 1 ms 256 KB
subtask_1_03.txt AC 11 ms 256 KB
subtask_1_04.txt AC 1 ms 256 KB
subtask_1_05.txt AC 1 ms 256 KB
subtask_1_06.txt AC 1 ms 256 KB
subtask_1_07.txt AC 9 ms 256 KB
subtask_1_08.txt AC 2 ms 256 KB
subtask_1_09.txt AC 4 ms 256 KB
subtask_1_10.txt AC 4 ms 256 KB
subtask_1_11.txt AC 3 ms 256 KB
subtask_1_12.txt AC 31 ms 256 KB
subtask_1_13.txt AC 10 ms 256 KB
subtask_1_14.txt AC 3 ms 256 KB
subtask_1_15.txt AC 7 ms 256 KB
subtask_1_16.txt AC 2 ms 256 KB
subtask_1_17.txt AC 4 ms 256 KB
subtask_1_18.txt AC 18 ms 256 KB
subtask_1_19.txt AC 17 ms 256 KB
subtask_1_20.txt AC 19 ms 256 KB
subtask_1_21.txt AC 18 ms 256 KB
subtask_1_22.txt AC 1 ms 256 KB
subtask_1_23.txt AC 6 ms 256 KB
subtask_1_24.txt AC 24 ms 256 KB
subtask_1_25.txt AC 3 ms 256 KB
subtask_1_26.txt AC 4 ms 256 KB
subtask_1_27.txt AC 13 ms 256 KB
subtask_1_28.txt AC 2 ms 256 KB
subtask_1_29.txt AC 6 ms 256 KB
subtask_1_30.txt AC 11 ms 256 KB
subtask_1_31.txt AC 3 ms 256 KB
subtask_1_32.txt AC 6 ms 256 KB
subtask_1_33.txt AC 2 ms 256 KB
subtask_1_34.txt AC 2 ms 256 KB
subtask_1_35.txt AC 2 ms 256 KB
subtask_1_36.txt AC 2 ms 256 KB
subtask_1_37.txt AC 4 ms 256 KB
subtask_1_38.txt AC 1 ms 256 KB
subtask_1_39.txt AC 3 ms 256 KB
subtask_1_40.txt AC 2 ms 256 KB
subtask_1_41.txt AC 2 ms 256 KB
subtask_1_42.txt AC 1 ms 256 KB
subtask_1_43.txt AC 1 ms 256 KB
subtask_1_44.txt AC 2 ms 256 KB
subtask_1_45.txt AC 2 ms 256 KB
subtask_1_46.txt AC 1 ms 256 KB
subtask_1_47.txt AC 2 ms 256 KB
subtask_1_48.txt AC 2 ms 256 KB