結果

問題 No.1120 Strange Teacher
ユーザー KeroruKeroru
提出日時 2020-07-22 21:38:52
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 278 ms / 1,000 ms
コード長 5,337 bytes
コンパイル時間 1,239 ms
コンパイル使用メモリ 87,024 KB
実行使用メモリ 99,512 KB
最終ジャッジ日時 2023-09-04 16:23:34
合計ジャッジ時間 10,351 ms
ジャッジサーバーID
（参考情報） 		judge11 / judge14
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 239 ms
84,120 KB
testcase_01 AC 240 ms
84,340 KB
testcase_02 AC 243 ms
84,368 KB
testcase_03 AC 245 ms
84,796 KB
testcase_04 AC 277 ms
98,448 KB
testcase_05 AC 272 ms
98,604 KB
testcase_06 AC 274 ms
98,692 KB
testcase_07 AC 272 ms
98,808 KB
testcase_08 AC 269 ms
98,316 KB
testcase_09 AC 231 ms
84,016 KB
testcase_10 AC 273 ms
98,760 KB
testcase_11 AC 274 ms
98,496 KB
testcase_12 AC 277 ms
98,768 KB
testcase_13 AC 274 ms
98,316 KB
testcase_14 AC 278 ms
98,608 KB
testcase_15 AC 276 ms
98,588 KB
testcase_16 AC 275 ms
98,768 KB
testcase_17 AC 275 ms
98,636 KB
testcase_18 AC 231 ms
84,224 KB
testcase_19 AC 269 ms
99,512 KB
testcase_20 AC 232 ms
84,176 KB
testcase_21 AC 234 ms
83,944 KB
testcase_22 AC 234 ms
83,980 KB
testcase_23 AC 234 ms
84,160 KB
testcase_24 AC 268 ms
97,992 KB
testcase_25 AC 239 ms
84,184 KB
testcase_26 AC 236 ms
83,872 KB
testcase_27 AC 239 ms
84,156 KB
testcase_28 AC 237 ms
84,044 KB
testcase_29 AC 233 ms
84,088 KB
権限があれば一括ダウンロードができます

ソースコード

diff # 

import sys,bisect,string,math,time,functools,random,fractions
from heapq import heappush,heappop,heapify
from collections import deque,defaultdict,Counter
from itertools import permutations,combinations,groupby
rep=range;R=range
def Golf():n,*t=map(int,open(0).read().split())
def I():return int(input())
def S_():return input()
def IS():return input().split()
def LS():return [i for i in input().split()]
def MI():return map(int,input().split())
def LI():return [int(i) for i in input().split()]
def LI_():return [int(i)-1 for i in input().split()]
def NI(n):return [int(input()) for i in range(n)]
def NI_(n):return [int(input())-1 for i in range(n)]
def StoLI():return [ord(i)-97 for i in input()]
def ItoS(n):return chr(n+97)
def LtoS(ls):return ''.join([chr(i+97) for i in ls])
def RA():return map(int,open(0).read().split())
def GI(V,E,ls=None,Directed=False,index=1):
    org_inp=[];g=[[] for i in range(V)]
    FromStdin=True if ls==None else False
    for i in range(E):
        if FromStdin:
            inp=LI()
            org_inp.append(inp)
        else:
            inp=ls[i]
        if len(inp)==2:
            a,b=inp;c=1
        else:
            a,b,c=inp
        if index==1:a-=1;b-=1
        aa=(a,c);bb=(b,c);g[a].append(bb)
        if not Directed:g[b].append(aa)
    return g,org_inp
def GGI(h,w,search=None,replacement_of_found='.',mp_def={'#':1,'.':0},boundary=1):
    #h,w,g,sg=GGI(h,w,search=['S','G'],replacement_of_found='.',mp_def={'#':1,'.':0},boundary=1) # sample usage
    mp=[boundary]*(w+2);found={}
    for i in R(h):
        s=input()
        for char in search:
            if char in s:
                found[char]=((i+1)*(w+2)+s.index(char)+1)
                mp_def[char]=mp_def[replacement_of_found]
        mp+=[boundary]+[mp_def[j] for j in s]+[boundary]
    mp+=[boundary]*(w+2)
    return h+2,w+2,mp,found
def TI(n):return GI(n,n-1)
def accum(ls):
    rt=[0]
    for i in ls:rt+=[rt[-1]+i]
    return rt
def bit_combination(n,base=2):
    rt=[]
    for tb in R(base**n):s=[tb//(base**bt)%base for bt in R(n)];rt+=[s]
    return rt
def gcd(x,y):
    if y==0:return x
    if x%y==0:return y
    while x%y!=0:x,y=y,x%y
    return y
def YN(x):print(['NO','YES'][x])
def Yn(x):print(['No','Yes'][x])
def show(*inp,end='\n'):
    if show_flg:print(*inp,end=end)

mo=10**9+7
inf=float('inf')
FourNb=[(-1,0),(1,0),(0,1),(0,-1)];EightNb=[(-1,0),(1,0),(0,1),(0,-1),(1,1),(-1,-1),(1,-1),(-1,1)];compas=dict(zip('WENS',FourNb));cursol=dict(zip('LRUD',FourNb))
l_alp=string.ascii_lowercase
#sys.setrecursionlimit(10**7)
read=sys.stdin.buffer.read;readline=sys.stdin.buffer.readline;input=lambda:sys.stdin.readline().rstrip()

########################################################################################################################################################################
# Binary Indexed Tree
# Bit.add(i,x)    : add x at i-th value
# Bit.sum(i)      : get sum up to i-th value
# Bit.l_bound(w)  : get lower bound of index where w can be inserted

class Bit:
    def __init__(self,n,init=None):
        self.size=n
        self.m=len(bin(self.size))-2
        self.arr=[0]*(2**self.m+1)
        if init!=None:
            for i in range(len(init)):
                self.add(i,init[i])
        
    def __str__(self):
        a=[self.sum(i+1)-self.sum(i) for i in range(self.size)]
        return str(a)
        
    def add(self,i,x):
        if i<0:return NotImplemented
        k=0
        while i<=self.size:
            k+=1
            self.arr[i]+=x
            i+=i&(-i)
        return
    
    def sum(self,i):
        if i<0:return NotImplemented
        rt=0
        while i>0:
            rt+=self.arr[i]
            i-=i&(-i)
        return rt
    
    def __getitem__(self,key):
        return self.sum(key+1)-self.sum(key)

    def __setitem__(self,key,value):
        self.add(key,value-self.sum(key+1)+self.sum(key))

    def l_bound(self,w):
        if w<=0:
            return 0
        x=0
        k=2**self.m
        while k>0:
            if x+k<self.size and self.arr[x+k]<w:
                w-=self.arr[x+k]
                x+=k
            k//=2
        return x+1
        
    def u_bound(self,w):
        if w<=0:
            return 0
        x=0
        k=2**self.m
        while k>0:
            if x+k<self.size and self.arr[x+k]<=w:
                w-=self.arr[x+k]
                x+=k
            k//=2
        return x+1
        
class Bit0(Bit):
    def add(self,j,x):
        super().add(j+1,x)
    def l_bound(self,w):
        return max(super().l_bound(w)-1,0)
    def u_bound(self,w):
        return max(super().u_bound(w)-1,0)

class Multiset(Bit0):
    def __init__(self,max_v):
        super().__init__(max_v)
    def insert(self,x):
        super().add(x,1)
    def find(self,x):
        return super().l_bound(super().sum(x))
    def __str__(self):
        return str(self.arr)

def compress(L):
    dc={v:i for i,v in enumerate(sorted(set(L)))}
    return [dc[i] for i in L]

show_flg=False
show_flg=True

ans=0

n=I()
a=LI()
b=LI()

A,B=sum(a),sum(b)

if n==2:
    if A!=B:
        print(-1)
    else:
        print(abs(max(a)-max(b)))
    exit()

t=(A-B)//(n-2)
ans=t
if (A-B)%(n-2)!=0 or A-B<0:
    ans=-1
    
x=[b[i]-a[i]+t for i in range(n)]
for i in x:
    if i%2!=0 or i<0:
        ans=-1
if sum(x)!=t*2:
    ans=-1
print(ans)
0