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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#360582#6299. Binary Stringmazihang2022WA 114ms5900kbC++143.1kb2024-03-21 22:05:272024-03-21 22:05:27

Judging History

你现在查看的是最新测评结果

  • [2024-03-21 22:05:27]
  • 评测
  • 测评结果:WA
  • 用时:114ms
  • 内存:5900kb
  • [2024-03-21 22:05:27]
  • 提交

answer

#include<bits/stdc++.h>

#define ll long long

#define fir first

#define sec second

#define pii pair<int,int>

#define isz(v) (int)(v.size())

using namespace std;



const int maxn=200005;

const int inf=0x3f3f3f3f;



namespace Solve {

	int a[maxn];

	int res[maxn];

	int fail[maxn];

	void clear() {

		

	}

	void main(int tid) {

		string s;

		cin>>s;

		int n=isz(s);

		for(int i=1;i<=n;i++) {

			a[i]=s[i-1]-'0';

		}

		int c=accumulate(a+1,a+n+1,0);

		if(!c||c==n) {

			cout<<"1\n";

			return ;

		}

		if(c<=n-c) {

			for(int i=1;i<=n;i++) {

				a[i]^=1;

			}

			reverse(a+1,a+n+1);

		}

		int sum=0,mi=inf,pos=0;

		for(int i=1;i<=n;i++) {

			sum+=a[i]?1:-1;

			if(sum<mi) {

				mi=sum;

				pos=i;

			}

		}

		assert(pos);

		rotate(a+1,a+pos+1,a+n+1);

		if(a[n]==1) {

			int p=n;

			while(a[p]==1) {

				p--;

			}

			rotate(a+1,a+p+1,a+n+1);

		}

		// for(int i=1;i<=n;i++) {

		// 	cerr<<a[i]<<" ";

		// }

		// cerr<<"\n";

		int ans=0;

		deque<array<int,5>> vs;

		auto insert=[&](int p,int len,int tim,int l,int r) {

			while(isz(vs)&&vs.back()[0]&&!p) {

				auto t=vs.back();

				vs.pop_back();

				if(t[1]<len) {

					len-=t[1];

					tim+=t[1];

					ans=max(ans,t[2]+t[1]);

				} else if(t[1]==len) {

					ans=max(ans,t[2]+t[1]);

					ans=max(ans,tim+len);

					return ;

				} else {

					ans=max(ans,tim+len);

					vs.push_back({t[0],t[1]-len,t[2]+len,t[3],t[4]});

					return ;

				}

			}

			vs.push_back({p,len,tim,l,r});

		};

		for(int i=1;i<=n;i++) {

			int j=i;

			while(j<=n&&a[i]==a[j]) {

				j++;

			}

			insert(a[i],j-i,0,i,j-1);

			i=j-1;

		}

		// cerr<<ans<<"\n";

		fill(res+1,res+n+1,0);

		for(auto p:vs) {

			// cerr<<"p: "<<p[0]<<" "<<p[1]<<" "<<p[2]<<" "<<p[3]<<" "<<p[4]<<"\n";

			for(int i=(p[3]+ans-1)%n+1,c=1;c<=p[1];c++,i=i%n+1) {

				res[i]=1;

			}

		}

		// for(int i=1;i<=n;i++) {

		// 	cerr<<res[i]<<" ";

		// }

		// cerr<<"\n";

		for(int i=1;i<=n;i++) {

			if(res[i]) {

				for(int p=i,j=i%n+1;j!=i;p=j,j=j%n+1) {

					if(!res[j]) {

						res[j]=res[p]^1;

					}

				}

				break;

			}

		}

		// for(int i=1;i<=n;i++) {

		// 	cerr<<res[i]<<" ";

		// }

		// cerr<<"\n";

		int j=0;

		for(int i=2;i<=n;i++) {

			while(j&&res[i]!=res[j+1]) {

				j=fail[j];

			}

			if(res[i]==res[j+1]) {

				j++;

			}

			fail[i]=j;

		}

		if(n%(n-fail[n])==0) {

			ans+=n-fail[n];

		} else {

			ans+=n;

		}

		cout<<ans-1<<"\n";

	}

	void init() {

		

	}

}



signed main() {

#ifndef ONLINE_JUDGE

	freopen("data.in","r",stdin);

	freopen("data.out","w",stdout);

#endif

	ios::sync_with_stdio(false);

	cin.tie(0),cout.tie(0);

	int T=1;

	cin>>T;

	Solve::init();

	for(int t=1;t<=T;t++) {

		Solve::main(t);

		Solve::clear();

	}

#ifndef ONLINE_JUDGE

	cerr<<"Time: "<<(1.0*clock()/CLOCKS_PER_SEC)*1000<<"ms\n";

#endif

}


Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 5900kb

input:

3
1
001001
0001111

output:

1
3
9

result:

ok 3 number(s): "1 3 9"

Test #2:

score: -100
Wrong Answer
time: 114ms
memory: 3612kb

input:

262144
000000000000000000
100000000000000000
010000000000000000
110000000000000000
001000000000000000
101000000000000000
011000000000000000
111000000000000000
000100000000000000
100100000000000000
010100000000000000
110100000000000000
001100000000000000
101100000000000000
011100000000000000
11110000...

output:

1
18
18
19
18
18
19
20
18
18
18
19
19
19
20
21
18
18
18
19
18
18
19
20
19
19
19
19
20
20
21
22
18
18
18
19
18
18
19
20
18
18
18
19
19
19
20
21
19
19
19
19
19
19
19
20
20
20
20
20
21
21
22
23
18
18
18
19
18
18
19
20
18
18
18
19
19
19
20
21
18
18
18
19
18
18
19
20
19
19
19
19
20
20
21
22
19
19
19
19
1...

result:

wrong answer 12th numbers differ - expected: '20', found: '19'