Submission #10,783

2024-04-12 15:49:58

cpp17

Accepted 100/100

68ms

7604 KiB

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

#define int long long

signed main(){
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
#ifdef CB
	freopen("be1.txt","r",stdin);
//	freopen("ki.txt","w",stdout);
#endif
	int N;
	cin>>N;
	vector<int>v(N+1),p(N+1);
	for(int i=1;i<=N;i++){
		cin>>v[i];
		p[i]=p[i-1]+v[i];
	}
	int l=v[1],h=p[N];
	while(l<h){
		int m=(l+h)/2;
		int ok=1;
		int mn=0;
		for(int i=1;i<=N;i++){
			mn=max(mn,(v[i]+1)/2);
		}
		int x=0;
		int a=0;
		for(int i=1;i<=N;i++){
			int y=min(x,m-(m%2!=x%2));
			a=min(abs(a-v[i]),abs(y-v[i]));
			x+=v[i];
			if(y>=v[i]){
				a=min(a,x&1);
			}
			mn=max(mn,a);
		}
		x=0;
		a=0;
		for(int i=N;i>=1;i--){
			int y=min(x,m-(m%2!=x%2));
			a=min(abs(a-v[i]),abs(y-v[i]));
			x+=v[i];
			if(y>=v[i]){
				a=min(a,x&1);
			}
			mn=max(mn,a);
		}
		ok&=mn<=m;
		if(ok){
			h=m;
		}
		else{
			l=m+1;
		}
	}
	cout<<h<<'\n';
	l=v[1],h=p[N];
	while(l<h){
		int m=(l+h)/2;
		int ok=0;
		for(int i=1;i<=N;i++){
			if(p[i]>=m&&p[N]-p[i]>=m){
				ok=1;
			}
		}
		if(ok){
			l=m+1;
		}
		else{
			h=m;
		}
	}
	cout<<l-1<<'\n';
	return 0;
}

	Sum	Test	Verdict	Time	Memory
subtask1	0/0
		1	Accepted	3ms	1700 KiB
		2	Accepted	67ms	4888 KiB
subtask2	12/12
		3	Accepted	3ms	2076 KiB
		4	Accepted	3ms	2284 KiB
		5	Accepted	3ms	2504 KiB
		6	Accepted	3ms	2708 KiB
		7	Accepted	3ms	2928 KiB
		8	Accepted	3ms	3136 KiB
		9	Accepted	3ms	3224 KiB
		10	Accepted	2ms	3364 KiB
		11	Accepted	3ms	3456 KiB
		12	Accepted	3ms	3684 KiB
		13	Accepted	3ms	3732 KiB
		14	Accepted	3ms	3728 KiB
		15	Accepted	2ms	3840 KiB
		16	Accepted	3ms	3824 KiB
subtask3	12/12
		17	Accepted	3ms	2076 KiB
		18	Accepted	3ms	2284 KiB
		19	Accepted	3ms	2504 KiB
		20	Accepted	3ms	2708 KiB
		21	Accepted	3ms	2928 KiB
		22	Accepted	3ms	3136 KiB
		23	Accepted	3ms	3224 KiB
		24	Accepted	2ms	3364 KiB
		25	Accepted	3ms	3456 KiB
		26	Accepted	3ms	3684 KiB
		27	Accepted	3ms	3728 KiB
		28	Accepted	3ms	3628 KiB
		29	Accepted	2ms	3624 KiB
		30	Accepted	3ms	3620 KiB
		31	Accepted	3ms	3748 KiB
		32	Accepted	3ms	3828 KiB
		33	Accepted	3ms	3836 KiB
		34	Accepted	3ms	3988 KiB
		35	Accepted	3ms	4056 KiB
		36	Accepted	3ms	3836 KiB
		37	Accepted	3ms	3732 KiB
		38	Accepted	3ms	3728 KiB
		39	Accepted	2ms	3836 KiB
		40	Accepted	3ms	3936 KiB
		41	Accepted	3ms	4164 KiB
		42	Accepted	3ms	4272 KiB
		43	Accepted	2ms	3840 KiB
		44	Accepted	3ms	3824 KiB
		45	Accepted	3ms	4164 KiB
		46	Accepted	3ms	4292 KiB
		47	Accepted	3ms	4280 KiB
		48	Accepted	2ms	4384 KiB
		49	Accepted	3ms	4280 KiB
subtask4	16/16
		50	Accepted	3ms	2076 KiB
		51	Accepted	3ms	2284 KiB
		52	Accepted	3ms	2504 KiB
		53	Accepted	3ms	2708 KiB
		54	Accepted	3ms	2928 KiB
		55	Accepted	3ms	3136 KiB
		56	Accepted	3ms	3224 KiB
		57	Accepted	2ms	3364 KiB
		58	Accepted	3ms	3456 KiB
		59	Accepted	3ms	3684 KiB
		60	Accepted	3ms	3728 KiB
		61	Accepted	3ms	3628 KiB
		62	Accepted	2ms	3624 KiB
		63	Accepted	3ms	3620 KiB
		64	Accepted	3ms	3748 KiB
		65	Accepted	3ms	3828 KiB
		66	Accepted	3ms	3836 KiB
		67	Accepted	3ms	3988 KiB
		68	Accepted	3ms	4056 KiB
		69	Accepted	3ms	3836 KiB
		70	Accepted	3ms	4264 KiB
		71	Accepted	3ms	4264 KiB
		72	Accepted	3ms	4508 KiB
		73	Accepted	3ms	4260 KiB
		74	Accepted	3ms	4364 KiB
		75	Accepted	2ms	4268 KiB
		76	Accepted	3ms	4260 KiB
		77	Accepted	3ms	4264 KiB
		78	Accepted	3ms	4264 KiB
		79	Accepted	3ms	4268 KiB
		80	Accepted	3ms	3732 KiB
		81	Accepted	3ms	3728 KiB
		82	Accepted	2ms	3836 KiB
		83	Accepted	3ms	3936 KiB
		84	Accepted	3ms	4164 KiB
		85	Accepted	3ms	4272 KiB
		86	Accepted	2ms	3840 KiB
		87	Accepted	3ms	3824 KiB
		88	Accepted	3ms	4164 KiB
		89	Accepted	3ms	4292 KiB
		90	Accepted	3ms	4280 KiB
		91	Accepted	2ms	4384 KiB
		92	Accepted	3ms	4280 KiB
subtask5	60/60
		93	Accepted	3ms	2076 KiB
		94	Accepted	67ms	7160 KiB
		95	Accepted	3ms	2284 KiB
		96	Accepted	3ms	2504 KiB
		97	Accepted	3ms	2708 KiB
		98	Accepted	3ms	2928 KiB
		99	Accepted	3ms	3136 KiB
		100	Accepted	3ms	3224 KiB
		101	Accepted	2ms	3364 KiB
		102	Accepted	3ms	3456 KiB
		103	Accepted	3ms	3684 KiB
		104	Accepted	3ms	3728 KiB
		105	Accepted	3ms	3628 KiB
		106	Accepted	2ms	3624 KiB
		107	Accepted	3ms	3620 KiB
		108	Accepted	3ms	3748 KiB
		109	Accepted	3ms	3828 KiB
		110	Accepted	3ms	3836 KiB
		111	Accepted	3ms	3988 KiB
		112	Accepted	3ms	4056 KiB
		113	Accepted	3ms	3836 KiB
		114	Accepted	3ms	4264 KiB
		115	Accepted	3ms	4264 KiB
		116	Accepted	3ms	4508 KiB
		117	Accepted	3ms	4260 KiB
		118	Accepted	3ms	4364 KiB
		119	Accepted	2ms	4268 KiB
		120	Accepted	3ms	4260 KiB
		121	Accepted	3ms	4264 KiB
		122	Accepted	3ms	4264 KiB
		123	Accepted	3ms	4268 KiB
		124	Accepted	68ms	7164 KiB
		125	Accepted	68ms	7208 KiB
		126	Accepted	68ms	7160 KiB
		127	Accepted	67ms	7216 KiB
		128	Accepted	67ms	7212 KiB
		129	Accepted	67ms	7160 KiB
		130	Accepted	67ms	7164 KiB
		131	Accepted	65ms	7160 KiB
		132	Accepted	65ms	7308 KiB
		133	Accepted	3ms	3732 KiB
		134	Accepted	3ms	3728 KiB
		135	Accepted	2ms	3836 KiB
		136	Accepted	3ms	3936 KiB
		137	Accepted	3ms	4164 KiB
		138	Accepted	3ms	4272 KiB
		139	Accepted	2ms	3840 KiB
		140	Accepted	3ms	3824 KiB
		141	Accepted	3ms	4164 KiB
		142	Accepted	3ms	4292 KiB
		143	Accepted	3ms	4280 KiB
		144	Accepted	45ms	7032 KiB
		145	Accepted	41ms	6644 KiB
		146	Accepted	46ms	7196 KiB
		147	Accepted	28ms	5992 KiB
		148	Accepted	43ms	7388 KiB
		149	Accepted	43ms	7604 KiB
		150	Accepted	2ms	4384 KiB
		151	Accepted	3ms	4280 KiB
		152	Accepted	41ms	7444 KiB