| 10842 | 2024-04-16 14:20:01 | 42 | Metróutasok | pypy3 | Accepted 100/100 | 209ms | 123556 KiB |
#from sys import stdin, stdout
#input=stdin.readline
def main():
N = int(input())
A = list(map(int, input().split()))
s=sum(A)//2
maxi=mini=0
for i in range(N-1,-1,-1):
if maxi+A[i]<=s:
maxi+=A[i]
else:
break
maxipre=0
for i in range(N):
if maxipre+A[i]<=s:
maxipre+=A[i]
else:
break
if maxipre>maxi:
maxi=maxipre
def test(A,k):
if max(A[0],A[-1])>k:
return False
cur=A[0]
for i in range(1,len(A)):
if cur+A[i]<=k:
cur+=A[i]
continue
if A[i]-cur>k:
return False
if (A[i]+cur-k)%2==0:
cur=k
else:
cur=k-1
cur=A[-1]
for i in range(len(A)-2,0,-1):
if cur+A[i]<=k:
cur+=A[i]
continue
if A[i]-cur>k:
return False
if (A[i]+cur-k)%2==0:
cur=k
else:
cur=k-1
return True
lo=max(A[0],A[-1])-1
hi=min(maxi,2*10**9)
#while True:
# h=hi//100
# if test(A,h):
# if h>lo:
# hi=h
# else:
# break
while hi-lo>1:
mid=(hi+lo)//2
if test(A,mid):
hi=mid
else:
lo=mid
print(hi)
print(maxi)
main()
| Subtask | Sum | Test | Verdict | Time | Memory | ||
|---|---|---|---|---|---|---|---|
| subtask1 | 0/0 | ||||||
| 1 | Accepted | 48ms | 76744 KiB | ||||
| 2 | Accepted | 181ms | 119812 KiB | ||||
| subtask2 | 12/12 | ||||||
| 3 | Accepted | 46ms | 77028 KiB | ||||
| 4 | Accepted | 43ms | 77660 KiB | ||||
| 5 | Accepted | 39ms | 77808 KiB | ||||
| 6 | Accepted | 46ms | 77776 KiB | ||||
| 7 | Accepted | 48ms | 78836 KiB | ||||
| 8 | Accepted | 43ms | 78440 KiB | ||||
| 9 | Accepted | 39ms | 78924 KiB | ||||
| 10 | Accepted | 48ms | 78712 KiB | ||||
| 11 | Accepted | 43ms | 79524 KiB | ||||
| 12 | Accepted | 39ms | 79816 KiB | ||||
| 13 | Accepted | 46ms | 79112 KiB | ||||
| 14 | Accepted | 43ms | 79504 KiB | ||||
| 15 | Accepted | 39ms | 79424 KiB | ||||
| 16 | Accepted | 48ms | 79108 KiB | ||||
| subtask3 | 12/12 | ||||||
| 17 | Accepted | 46ms | 77028 KiB | ||||
| 18 | Accepted | 43ms | 77660 KiB | ||||
| 19 | Accepted | 39ms | 77808 KiB | ||||
| 20 | Accepted | 46ms | 77776 KiB | ||||
| 21 | Accepted | 48ms | 78836 KiB | ||||
| 22 | Accepted | 43ms | 78440 KiB | ||||
| 23 | Accepted | 39ms | 78924 KiB | ||||
| 24 | Accepted | 48ms | 78712 KiB | ||||
| 25 | Accepted | 43ms | 79524 KiB | ||||
| 26 | Accepted | 39ms | 79816 KiB | ||||
| 27 | Accepted | 46ms | 79988 KiB | ||||
| 28 | Accepted | 46ms | 79820 KiB | ||||
| 29 | Accepted | 46ms | 79972 KiB | ||||
| 30 | Accepted | 46ms | 80028 KiB | ||||
| 31 | Accepted | 46ms | 80228 KiB | ||||
| 32 | Accepted | 46ms | 80880 KiB | ||||
| 33 | Accepted | 43ms | 80720 KiB | ||||
| 34 | Accepted | 46ms | 80784 KiB | ||||
| 35 | Accepted | 43ms | 80708 KiB | ||||
| 36 | Accepted | 46ms | 80856 KiB | ||||
| 37 | Accepted | 46ms | 79112 KiB | ||||
| 38 | Accepted | 43ms | 79504 KiB | ||||
| 39 | Accepted | 46ms | 80756 KiB | ||||
| 40 | Accepted | 43ms | 80436 KiB | ||||
| 41 | Accepted | 39ms | 81120 KiB | ||||
| 42 | Accepted | 46ms | 80848 KiB | ||||
| 43 | Accepted | 39ms | 79424 KiB | ||||
| 44 | Accepted | 48ms | 79108 KiB | ||||
| 45 | Accepted | 43ms | 80740 KiB | ||||
| 46 | Accepted | 39ms | 81104 KiB | ||||
| 47 | Accepted | 39ms | 81124 KiB | ||||
| 48 | Accepted | 39ms | 80704 KiB | ||||
| 49 | Accepted | 46ms | 80676 KiB | ||||
| subtask4 | 16/16 | ||||||
| 50 | Accepted | 46ms | 77028 KiB | ||||
| 51 | Accepted | 43ms | 77660 KiB | ||||
| 52 | Accepted | 39ms | 77808 KiB | ||||
| 53 | Accepted | 46ms | 77776 KiB | ||||
| 54 | Accepted | 48ms | 78836 KiB | ||||
| 55 | Accepted | 43ms | 78440 KiB | ||||
| 56 | Accepted | 39ms | 78924 KiB | ||||
| 57 | Accepted | 48ms | 78712 KiB | ||||
| 58 | Accepted | 43ms | 79524 KiB | ||||
| 59 | Accepted | 39ms | 79816 KiB | ||||
| 60 | Accepted | 46ms | 79988 KiB | ||||
| 61 | Accepted | 46ms | 79820 KiB | ||||
| 62 | Accepted | 46ms | 79972 KiB | ||||
| 63 | Accepted | 46ms | 80028 KiB | ||||
| 64 | Accepted | 46ms | 80228 KiB | ||||
| 65 | Accepted | 46ms | 80880 KiB | ||||
| 66 | Accepted | 43ms | 80720 KiB | ||||
| 67 | Accepted | 46ms | 80784 KiB | ||||
| 68 | Accepted | 43ms | 80708 KiB | ||||
| 69 | Accepted | 46ms | 80856 KiB | ||||
| 70 | Accepted | 43ms | 81316 KiB | ||||
| 71 | Accepted | 41ms | 81440 KiB | ||||
| 72 | Accepted | 41ms | 81320 KiB | ||||
| 73 | Accepted | 41ms | 81360 KiB | ||||
| 74 | Accepted | 48ms | 81192 KiB | ||||
| 75 | Accepted | 45ms | 81476 KiB | ||||
| 76 | Accepted | 41ms | 81544 KiB | ||||
| 77 | Accepted | 41ms | 81572 KiB | ||||
| 78 | Accepted | 41ms | 81776 KiB | ||||
| 79 | Accepted | 41ms | 81736 KiB | ||||
| 80 | Accepted | 46ms | 79112 KiB | ||||
| 81 | Accepted | 43ms | 79504 KiB | ||||
| 82 | Accepted | 46ms | 80756 KiB | ||||
| 83 | Accepted | 43ms | 80436 KiB | ||||
| 84 | Accepted | 39ms | 81120 KiB | ||||
| 85 | Accepted | 46ms | 80848 KiB | ||||
| 86 | Accepted | 39ms | 79424 KiB | ||||
| 87 | Accepted | 48ms | 79108 KiB | ||||
| 88 | Accepted | 43ms | 80740 KiB | ||||
| 89 | Accepted | 39ms | 81104 KiB | ||||
| 90 | Accepted | 39ms | 81124 KiB | ||||
| 91 | Accepted | 39ms | 80704 KiB | ||||
| 92 | Accepted | 46ms | 80676 KiB | ||||
| subtask5 | 60/60 | ||||||
| 93 | Accepted | 46ms | 77028 KiB | ||||
| 94 | Accepted | 179ms | 123384 KiB | ||||
| 95 | Accepted | 43ms | 77660 KiB | ||||
| 96 | Accepted | 39ms | 77808 KiB | ||||
| 97 | Accepted | 46ms | 77776 KiB | ||||
| 98 | Accepted | 48ms | 78836 KiB | ||||
| 99 | Accepted | 43ms | 78440 KiB | ||||
| 100 | Accepted | 39ms | 78924 KiB | ||||
| 101 | Accepted | 48ms | 78712 KiB | ||||
| 102 | Accepted | 43ms | 79524 KiB | ||||
| 103 | Accepted | 39ms | 79816 KiB | ||||
| 104 | Accepted | 46ms | 79988 KiB | ||||
| 105 | Accepted | 46ms | 79820 KiB | ||||
| 106 | Accepted | 46ms | 79972 KiB | ||||
| 107 | Accepted | 46ms | 80028 KiB | ||||
| 108 | Accepted | 46ms | 80228 KiB | ||||
| 109 | Accepted | 46ms | 80880 KiB | ||||
| 110 | Accepted | 43ms | 80720 KiB | ||||
| 111 | Accepted | 46ms | 80784 KiB | ||||
| 112 | Accepted | 43ms | 80708 KiB | ||||
| 113 | Accepted | 46ms | 80856 KiB | ||||
| 114 | Accepted | 43ms | 81316 KiB | ||||
| 115 | Accepted | 41ms | 81440 KiB | ||||
| 116 | Accepted | 41ms | 81320 KiB | ||||
| 117 | Accepted | 41ms | 81360 KiB | ||||
| 118 | Accepted | 48ms | 81192 KiB | ||||
| 119 | Accepted | 45ms | 81476 KiB | ||||
| 120 | Accepted | 41ms | 81544 KiB | ||||
| 121 | Accepted | 41ms | 81572 KiB | ||||
| 122 | Accepted | 41ms | 81776 KiB | ||||
| 123 | Accepted | 41ms | 81736 KiB | ||||
| 124 | Accepted | 207ms | 123336 KiB | ||||
| 125 | Accepted | 208ms | 123192 KiB | ||||
| 126 | Accepted | 209ms | 123520 KiB | ||||
| 127 | Accepted | 202ms | 123428 KiB | ||||
| 128 | Accepted | 206ms | 123556 KiB | ||||
| 129 | Accepted | 180ms | 123200 KiB | ||||
| 130 | Accepted | 186ms | 123520 KiB | ||||
| 131 | Accepted | 150ms | 123208 KiB | ||||
| 132 | Accepted | 207ms | 123548 KiB | ||||
| 133 | Accepted | 46ms | 79112 KiB | ||||
| 134 | Accepted | 43ms | 79504 KiB | ||||
| 135 | Accepted | 46ms | 80756 KiB | ||||
| 136 | Accepted | 43ms | 80436 KiB | ||||
| 137 | Accepted | 39ms | 81120 KiB | ||||
| 138 | Accepted | 46ms | 80848 KiB | ||||
| 139 | Accepted | 39ms | 79424 KiB | ||||
| 140 | Accepted | 48ms | 79108 KiB | ||||
| 141 | Accepted | 43ms | 80740 KiB | ||||
| 142 | Accepted | 39ms | 81104 KiB | ||||
| 143 | Accepted | 39ms | 81124 KiB | ||||
| 144 | Accepted | 120ms | 113776 KiB | ||||
| 145 | Accepted | 128ms | 111484 KiB | ||||
| 146 | Accepted | 108ms | 113376 KiB | ||||
| 147 | Accepted | 86ms | 103420 KiB | ||||
| 148 | Accepted | 145ms | 113644 KiB | ||||
| 149 | Accepted | 109ms | 112060 KiB | ||||
| 150 | Accepted | 39ms | 80704 KiB | ||||
| 151 | Accepted | 46ms | 80676 KiB | ||||
| 152 | Accepted | 104ms | 111628 KiB | ||||