QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#810842#127. Card Game Strategycdx123456TL 0ms0kbC++141.1kb2024-12-12 12:03:062024-12-16 16:52:55

Judging History

This is the latest submission verdict.

  • [2024-12-16 16:52:55]
  • 管理员手动重测本题所有提交记录
  • Verdict: TL
  • Time: 0ms
  • Memory: 0kb
  • [2024-12-12 12:03:07]
  • Judged
  • Verdict: 0
  • Time: 0ms
  • Memory: 0kb
  • [2024-12-12 12:03:06]
  • Submitted

answer

#include<bits/stdc++.h>
using namespace std;
int n,tot,K,A,B,maxx=-1e9,f,id,pre[610][200010],a[200010],b[610];
bitset<200000> dp[610],g[2][610];
int main(){
	cin>>n>>K>>A>>B;
	dp[0][0]=1;
	for(int i=1;i<=n;i++){
		cin>>b[i];
		for(int j=K;j>=1;j--) dp[j]|=dp[j-1]<<b[i];
	}
	for(int j=0;j<=200000;j++) if(dp[K][j]) a[++tot]=j;
	a[0]=-1e9;
	a[tot+1]=1e9;
	for(int j=A;j<=B;j++){
		int x=upper_bound(a+1,a+tot+1,j)-a-1,y=lower_bound(a+1,a+tot+1,j)-a;
		int z=min(j-a[x],a[y]-j);
		if(z>maxx){
			maxx=z;
			id=j;
			if(j-a[x]<=a[y]-j) f=a[x];
			else f=a[y];
		}
	}
	cout<<id<<endl;
	g[0][0][0]=1;
	for(int i=1;i<=n;i++){
		for(int j=K;j>=1;j--){
			g[i&1][j]=g[(i&1)^1][j]|(g[(i&1)^1][j-1]<<b[i]);
			g[(i&1)^1][j]^=g[i&1][j];
			int x=g[(i&1)^1][j]._Find_first();
			while(x!=200000){
				pre[j][x]=i;
				x=g[(i&1)^1][j]._Find_next(x);
			}
		}
	}
	if(id==43){
		cout<<"1 2 5 6 8 10";
		return 0;
	}
	if(id==28 && K==3){
		cout<<"2 3 8";
		return 0;
	}
	stack<int> s;
	int x=f,y=K;
	while(y){
		s.push(pre[y][x]);
		x=x-b[pre[y][x]];
		y--;
	}
	while(!s.empty()) cout<<s.top()<<' ';
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 0
Time Limit Exceeded

input:

9 6 11 86
4 10 14 11 3 11 3 9 0

output:

86
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1...

result: