Submission #10,773

2024-04-11 18:41:11

cpp17

Accepted 100/100

19ms

5772 KiB

#include <bits/stdc++.h> 
  
using namespace std; 
const int c=200005; 
long long n, sum, t[c]; 
int main() 
{ 
    ios_base::sync_with_stdio(false); 
    cin >> n; 
    for (int i=1; i<=n; i++) { 
        cin >> t[i]; 
        sum+=t[i]; 
    } 
  
    long long res=0, pref=0, suf=0; 
    for (int i=1; i<=n; i++) { 
        res=max(res, t[i]-pref); 
        long long val=(t[i]+1)/2; 
        if (t[i]%2==0 && pref%2!=(t[i]/2)%2) val++; 
        res=max(res, val); 
        pref+=t[i]; 
    } 
    for (int i=n; i>=1; i--) { 
        res=max(res, t[i]-suf); 
        suf+=t[i]; 
    } 
    cout << res << "\n"; 
  
  
    long long s=0, maxi=0; 
    for (int i=1; i<=n; i++) { 
        s+=t[i]; 
        if (2*s<=sum) maxi=max(maxi, s); 
    } 
    s=0; 
    for (int i=n; i>=1; i--) { 
        s+=t[i]; 
        if (2*s<=sum) maxi=max(maxi, s); 
    } 
    cout << maxi << "\n"; 
    return 0; 
}

	Sum	Test	Verdict	Time	Memory
subtask1	0/0
		1	Accepted	3ms	1776 KiB
		2	Accepted	19ms	3664 KiB
subtask2	12/12
		3	Accepted	3ms	2192 KiB
		4	Accepted	2ms	2284 KiB
		5	Accepted	3ms	2496 KiB
		6	Accepted	3ms	2664 KiB
		7	Accepted	2ms	2740 KiB
		8	Accepted	2ms	2648 KiB
		9	Accepted	2ms	2652 KiB
		10	Accepted	3ms	2936 KiB
		11	Accepted	3ms	2908 KiB
		12	Accepted	3ms	2980 KiB
		13	Accepted	2ms	3040 KiB
		14	Accepted	2ms	2948 KiB
		15	Accepted	3ms	3052 KiB
		16	Accepted	3ms	3080 KiB
subtask3	12/12
		17	Accepted	3ms	2192 KiB
		18	Accepted	2ms	2284 KiB
		19	Accepted	3ms	2496 KiB
		20	Accepted	3ms	2664 KiB
		21	Accepted	2ms	2740 KiB
		22	Accepted	2ms	2648 KiB
		23	Accepted	2ms	2652 KiB
		24	Accepted	3ms	2936 KiB
		25	Accepted	3ms	2908 KiB
		26	Accepted	3ms	2980 KiB
		27	Accepted	3ms	3164 KiB
		28	Accepted	2ms	3168 KiB
		29	Accepted	3ms	3164 KiB
		30	Accepted	2ms	3248 KiB
		31	Accepted	3ms	3392 KiB
		32	Accepted	2ms	3392 KiB
		33	Accepted	2ms	3396 KiB
		34	Accepted	3ms	3300 KiB
		35	Accepted	3ms	3300 KiB
		36	Accepted	3ms	3448 KiB
		37	Accepted	2ms	3040 KiB
		38	Accepted	2ms	2948 KiB
		39	Accepted	3ms	3404 KiB
		40	Accepted	3ms	3384 KiB
		41	Accepted	3ms	3612 KiB
		42	Accepted	3ms	3600 KiB
		43	Accepted	3ms	3052 KiB
		44	Accepted	3ms	3080 KiB
		45	Accepted	3ms	3728 KiB
		46	Accepted	3ms	4000 KiB
		47	Accepted	3ms	3948 KiB
		48	Accepted	3ms	4008 KiB
		49	Accepted	3ms	4108 KiB
subtask4	16/16
		50	Accepted	3ms	2192 KiB
		51	Accepted	2ms	2284 KiB
		52	Accepted	3ms	2496 KiB
		53	Accepted	3ms	2664 KiB
		54	Accepted	2ms	2740 KiB
		55	Accepted	2ms	2648 KiB
		56	Accepted	2ms	2652 KiB
		57	Accepted	3ms	2936 KiB
		58	Accepted	3ms	2908 KiB
		59	Accepted	3ms	2980 KiB
		60	Accepted	3ms	3164 KiB
		61	Accepted	2ms	3168 KiB
		62	Accepted	3ms	3164 KiB
		63	Accepted	2ms	3248 KiB
		64	Accepted	3ms	3392 KiB
		65	Accepted	2ms	3392 KiB
		66	Accepted	2ms	3396 KiB
		67	Accepted	3ms	3300 KiB
		68	Accepted	3ms	3300 KiB
		69	Accepted	3ms	3448 KiB
		70	Accepted	3ms	4076 KiB
		71	Accepted	3ms	4076 KiB
		72	Accepted	2ms	3984 KiB
		73	Accepted	3ms	4076 KiB
		74	Accepted	3ms	4076 KiB
		75	Accepted	3ms	4080 KiB
		76	Accepted	3ms	4080 KiB
		77	Accepted	3ms	3988 KiB
		78	Accepted	3ms	3988 KiB
		79	Accepted	3ms	4096 KiB
		80	Accepted	2ms	3040 KiB
		81	Accepted	2ms	2948 KiB
		82	Accepted	3ms	3404 KiB
		83	Accepted	3ms	3384 KiB
		84	Accepted	3ms	3612 KiB
		85	Accepted	3ms	3600 KiB
		86	Accepted	3ms	3052 KiB
		87	Accepted	3ms	3080 KiB
		88	Accepted	3ms	3728 KiB
		89	Accepted	3ms	4000 KiB
		90	Accepted	3ms	3948 KiB
		91	Accepted	3ms	4008 KiB
		92	Accepted	3ms	4108 KiB
subtask5	60/60
		93	Accepted	3ms	2192 KiB
		94	Accepted	19ms	5540 KiB
		95	Accepted	2ms	2284 KiB
		96	Accepted	3ms	2496 KiB
		97	Accepted	3ms	2664 KiB
		98	Accepted	2ms	2740 KiB
		99	Accepted	2ms	2648 KiB
		100	Accepted	2ms	2652 KiB
		101	Accepted	3ms	2936 KiB
		102	Accepted	3ms	2908 KiB
		103	Accepted	3ms	2980 KiB
		104	Accepted	3ms	3164 KiB
		105	Accepted	2ms	3168 KiB
		106	Accepted	3ms	3164 KiB
		107	Accepted	2ms	3248 KiB
		108	Accepted	3ms	3392 KiB
		109	Accepted	2ms	3392 KiB
		110	Accepted	2ms	3396 KiB
		111	Accepted	3ms	3300 KiB
		112	Accepted	3ms	3300 KiB
		113	Accepted	3ms	3448 KiB
		114	Accepted	3ms	4076 KiB
		115	Accepted	3ms	4076 KiB
		116	Accepted	2ms	3984 KiB
		117	Accepted	3ms	4076 KiB
		118	Accepted	3ms	4076 KiB
		119	Accepted	3ms	4080 KiB
		120	Accepted	3ms	4080 KiB
		121	Accepted	3ms	3988 KiB
		122	Accepted	3ms	3988 KiB
		123	Accepted	3ms	4096 KiB
		124	Accepted	19ms	5544 KiB
		125	Accepted	19ms	5628 KiB
		126	Accepted	19ms	5624 KiB
		127	Accepted	19ms	5692 KiB
		128	Accepted	19ms	5544 KiB
		129	Accepted	19ms	5548 KiB
		130	Accepted	19ms	5544 KiB
		131	Accepted	19ms	5688 KiB
		132	Accepted	19ms	5640 KiB
		133	Accepted	2ms	3040 KiB
		134	Accepted	2ms	2948 KiB
		135	Accepted	3ms	3404 KiB
		136	Accepted	3ms	3384 KiB
		137	Accepted	3ms	3612 KiB
		138	Accepted	3ms	3600 KiB
		139	Accepted	3ms	3052 KiB
		140	Accepted	3ms	3080 KiB
		141	Accepted	3ms	3728 KiB
		142	Accepted	3ms	4000 KiB
		143	Accepted	3ms	3948 KiB
		144	Accepted	14ms	5652 KiB
		145	Accepted	14ms	5548 KiB
		146	Accepted	14ms	5772 KiB
		147	Accepted	9ms	5076 KiB
		148	Accepted	14ms	5616 KiB
		149	Accepted	14ms	5516 KiB
		150	Accepted	3ms	4008 KiB
		151	Accepted	3ms	4108 KiB
		152	Accepted	14ms	5660 KiB