Submission #23,964

2026-02-02 21:04:58

cpp17

Accepted 40/40

10ms

1020 KiB

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

void next(bool& rr,int& l,int& r){
    if(rr){
        cout<<r<<' ';
        r--;
    }else{
        cout<<l<<' ';
        l++;
    }
    rr^=1;
}

int main(){
    int n,k;cin>>n>>k;
    int l=1,r=n;
    bool rr=true;
    for(int i=0;i<k-1;i++)next(rr,l,r);
    cout<<(n+1)/2<<' ';
    for(int i=0;i<n-k;i++)next(rr,l,r);
}

	Sum	Test	Verdict		Time	Memory
base	40/40
		1	Accepted	0/0	2ms	316 KiB
		2	Accepted	0/0	9ms	820 KiB
		3	Accepted	1/1	1ms	316 KiB
		4	Accepted	1/1	1ms	316 KiB
		5	Accepted	1/1	1ms	316 KiB
		6	Accepted	1/1	2ms	508 KiB
		7	Accepted	1/1	1ms	328 KiB
		8	Accepted	1/1	1ms	316 KiB
		9	Accepted	1/1	1ms	316 KiB
		10	Accepted	1/1	1ms	316 KiB
		11	Accepted	1/1	1ms	316 KiB
		12	Accepted	1/1	1ms	316 KiB
		13	Accepted	1/1	1ms	316 KiB
		14	Accepted	1/1	1ms	316 KiB
		15	Accepted	1/1	1ms	316 KiB
		16	Accepted	1/1	1ms	316 KiB
		17	Accepted	1/1	2ms	316 KiB
		18	Accepted	1/1	1ms	316 KiB
		19	Accepted	1/1	1ms	316 KiB
		20	Accepted	1/1	1ms	316 KiB
		21	Accepted	1/1	9ms	880 KiB
		22	Accepted	1/1	10ms	816 KiB
		23	Accepted	1/1	9ms	820 KiB
		24	Accepted	1/1	9ms	820 KiB
		25	Accepted	1/1	9ms	1020 KiB
		26	Accepted	1/1	9ms	940 KiB
		27	Accepted	1/1	8ms	824 KiB
		28	Accepted	1/1	9ms	928 KiB
		29	Accepted	1/1	9ms	820 KiB
		30	Accepted	1/1	9ms	820 KiB
		31	Accepted	1/1	9ms	952 KiB
		32	Accepted	1/1	9ms	1012 KiB
		33	Accepted	1/1	10ms	820 KiB
		34	Accepted	2/2	10ms	820 KiB
		35	Accepted	1/1	10ms	820 KiB
		36	Accepted	1/1	9ms	820 KiB
		37	Accepted	2/2	9ms	780 KiB
		38	Accepted	1/1	9ms	832 KiB
		39	Accepted	1/1	9ms	820 KiB
		40	Accepted	1/1	9ms	820 KiB