Submission #610051

Source Code Expand

from itertools import count
b = 10**9 + 7
n = int(input())
a_s = [int(s) for s in input().split()]

if a_s[0] != 0:
    print(0)
    exit()
    
d = {}
for a in a_s:
    d[a] = d.get(a, 0) + 1

if d.get(0, 0) != 1:
    print(0)
    exit()

n -= 1
ans = 1
logh = 0
for i in count(1):
    if i not in d:
        break
    n -= d[i]
    logh += d[i] * (d[i]-1) // 2
    ans *= pow((1<<d[i-1])-1, d[i], b)

if n > 0:
    print(0)
else:
    ans *= pow(2, logh, b)
    print(ans%b)

Submission Info

Submission Time
Task B - 最短路問題
User lackdog
Language Python (3.4.2)
Score 100
Code Size 508 Byte
Status AC
Exec Time 724 ms
Memory 23112 KiB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 100 / 100
Status
AC × 4
AC × 46
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt, sample_04.txt
All sample_01.txt, sample_02.txt, sample_03.txt, sample_04.txt, test_01.txt, test_02.txt, test_03.txt, test_04.txt, test_05.txt, test_06.txt, test_07.txt, test_08.txt, test_09.txt, test_10.txt, test_11.txt, test_12.txt, test_13.txt, test_14.txt, test_15.txt, test_16.txt, test_17.txt, test_18.txt, test_19.txt, test_20.txt, test_21.txt, test_22.txt, test_23.txt, test_24.txt, test_25.txt, test_26.txt, test_27.txt, test_28.txt, test_29.txt, test_30.txt, test_31.txt, test_32.txt, test_33.txt, test_34.txt, test_35.txt, test_36.txt, test_37.txt, test_38.txt, test_39.txt, test_40.txt, test_41.txt, test_42.txt
Case Name Status Exec Time Memory
sample_01.txt AC 134 ms 6940 KiB
sample_02.txt AC 94 ms 6820 KiB
sample_03.txt AC 93 ms 6848 KiB
sample_04.txt AC 96 ms 6944 KiB
test_01.txt AC 97 ms 6820 KiB
test_02.txt AC 95 ms 6832 KiB
test_03.txt AC 96 ms 6868 KiB
test_04.txt AC 93 ms 6824 KiB
test_05.txt AC 95 ms 6820 KiB
test_06.txt AC 95 ms 6820 KiB
test_07.txt AC 93 ms 6752 KiB
test_08.txt AC 95 ms 6868 KiB
test_09.txt AC 99 ms 6940 KiB
test_10.txt AC 95 ms 6820 KiB
test_11.txt AC 188 ms 8708 KiB
test_12.txt AC 187 ms 8652 KiB
test_13.txt AC 184 ms 8780 KiB
test_14.txt AC 185 ms 8756 KiB
test_15.txt AC 191 ms 8664 KiB
test_16.txt AC 186 ms 8692 KiB
test_17.txt AC 184 ms 8780 KiB
test_18.txt AC 190 ms 8820 KiB
test_19.txt AC 190 ms 9204 KiB
test_20.txt AC 197 ms 11676 KiB
test_21.txt AC 205 ms 13316 KiB
test_22.txt AC 210 ms 13664 KiB
test_23.txt AC 221 ms 15800 KiB
test_24.txt AC 228 ms 17292 KiB
test_25.txt AC 721 ms 17288 KiB
test_26.txt AC 593 ms 23108 KiB
test_27.txt AC 600 ms 23112 KiB
test_28.txt AC 724 ms 17488 KiB
test_29.txt AC 172 ms 17372 KiB
test_30.txt AC 220 ms 17168 KiB
test_31.txt AC 94 ms 6816 KiB
test_32.txt AC 108 ms 6824 KiB
test_33.txt AC 94 ms 6796 KiB
test_34.txt AC 102 ms 6816 KiB
test_35.txt AC 104 ms 6808 KiB
test_36.txt AC 95 ms 6820 KiB
test_37.txt AC 104 ms 6816 KiB
test_38.txt AC 96 ms 6820 KiB
test_39.txt AC 97 ms 6828 KiB
test_40.txt AC 98 ms 6812 KiB
test_41.txt AC 94 ms 6816 KiB
test_42.txt AC 95 ms 6796 KiB