結果
| 問題 | No.148 試験監督（3） |
| ユーザー |
 kmjp
|
| 提出日時 | 2015-02-09 01:37:32 |
| 言語 | PyPy2 (7.3.15) |
| 結果 |
AC
|
| 実行時間 | 197 ms / 1,000 ms |
| コード長 | 24,524 bytes |
| コンパイル時間 | 791 ms |
| コンパイル使用メモリ | 76,852 KB |
| 実行使用メモリ | 78,144 KB |
| 最終ジャッジ日時 | 2024-06-23 11:26:58 |
| 合計ジャッジ時間 | 3,420 ms |
|
ジャッジサーバーID （参考情報） |
judge2 / judge4 |
（要ログイン）
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 | 104 ms
77,204 KB |
| testcase_01 | AC | 118 ms
77,236 KB |
| testcase_02 | AC | 175 ms
77,312 KB |
| testcase_03 | AC | 190 ms
77,324 KB |
| testcase_04 | AC | 196 ms
77,484 KB |
| testcase_05 | AC | 168 ms
77,080 KB |
| testcase_06 | AC | 154 ms
77,848 KB |
| testcase_07 | AC | 197 ms
78,144 KB |
| testcase_08 | AC | 175 ms
77,856 KB |
| testcase_09 | AC | 88 ms
76,308 KB |
| testcase_10 | AC | 89 ms
76,192 KB |
| testcase_11 | AC | 73 ms
75,516 KB |
ソースコード
import sys
import math
T=input()
mo=1000000007
def fact(x):
facts=[
[0,1],
[1000000,641102369],
[2000000,578095319],
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[730000000,663307737],
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[800000000,203191898],
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[840000000,814362881],
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[890000000,245795606],
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[894000000,759404319],
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[915000000,260466949],
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[936000000,713258160],
[937000000,737331920],
[938000000,923333660],
[939000000,804861409],
[940000000,83868974],
[941000000,682873215],
[942000000,217298111],
[943000000,883278906],
[944000000,176966527],
[945000000,954913],
[946000000,105359006],
[947000000,390019735],
[948000000,10430738],
[949000000,706334445],
[950000000,315103615],
[951000000,567473423],
[952000000,708233401],
[953000000,48160594],
[954000000,946149627],
[955000000,346966053],
[956000000,281329488],
[957000000,462880311],
[958000000,31503476],
[959000000,185438078],
[960000000,965785236],
[961000000,992656683],
[962000000,916291845],
[963000000,881482632],
[964000000,899946391],
[965000000,321900901],
[966000000,512634493],
[967000000,303338827],
[968000000,121000338],
[969000000,967284733],
[970000000,492741665],
[971000000,152233223],
[972000000,165393390],
[973000000,680128316],
[974000000,917041303],
[975000000,532702135],
[976000000,741626808],
[977000000,496442755],
[978000000,536841269],
[979000000,131384366],
[980000000,377329025],
[981000000,301196854],
[982000000,859917803],
[983000000,676511002],
[984000000,373451745],
[985000000,847645126],
[986000000,823495900],
[987000000,576368335],
[988000000,73146164],
[989000000,954958912],
[990000000,847549272],
[991000000,241289571],
[992000000,646654592],
[993000000,216046746],
[994000000,205951465],
[995000000,3258987],
[996000000,780882948],
[997000000,822439091],
[998000000,598245292],
[999000000,869544707],
[1000000000,698611116],
[1001000000,0]
]
ret = facts[x/1000000][1]
cur = facts[x/1000000][0]
for i in range(1,len(facts)):
if x < facts[i][0]:
cur = facts[i-1][0]
ret = facts[i-1][1]
break
for i in range(cur+1,x+1):
ret = ret*i%mo
return ret
def mult(L,R):
if L/mo != R/mo:
return 0
L%=mo
R%=mo
if L==0:
if R==0:
return 1
return 0
elif L==1:
return fact(R)
else:
return fact(R)*pow(fact(L-1),mo-2,mo)%mo
for i in range(T):
C,P=map(int,raw_input().strip().split(" "))
if P*2-1>C:
print 0
else:
# P! * H(P+1,C-(2*P-1))
# = P! * C(C-P+1,P) = (C-P+1)*(C-P+2)*...*(C-2*P+2)
if P >= mo:
print 0
else:
print mult(C-2*P+2,C-P+1) % mo