Submission #2851640

Source Code Expand

n = int(input())
a = []
b = 0
for i in range(n):
    x = int(input())
    b ^= x
    a += [x^(x-1)]
ans = 0
a.sort()
for x in a[::-1]:
    if b&((x+1)>>1):
        b^=x
        ans += 1

if b == 0:
    print(ans)
else:
    print(-1)

Submission Info

Submission Time
Task C - Cheating Nim
User deoxy
Language Python (3.4.3)
Score 500
Code Size 253 Byte
Status AC
Exec Time 288 ms
Memory 7836 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 500 / 500
Status
AC × 2
AC × 26
Set Name Test Cases
Sample example0.txt, example1.txt
All 000.txt, 001.txt, 002.txt, 003.txt, 004.txt, 005.txt, 006.txt, 007.txt, 008.txt, 009.txt, 010.txt, 011.txt, 012.txt, 013.txt, 014.txt, 015.txt, 016.txt, 017.txt, 018.txt, 019.txt, 020.txt, 021.txt, 022.txt, 023.txt, example0.txt, example1.txt
Case Name Status Exec Time Memory
000.txt AC 17 ms 3060 KB
001.txt AC 17 ms 2940 KB
002.txt AC 265 ms 7836 KB
003.txt AC 163 ms 4132 KB
004.txt AC 134 ms 3856 KB
005.txt AC 90 ms 3608 KB
006.txt AC 282 ms 7012 KB
007.txt AC 280 ms 6992 KB
008.txt AC 277 ms 7020 KB
009.txt AC 276 ms 7032 KB
010.txt AC 272 ms 7008 KB
011.txt AC 278 ms 7020 KB
012.txt AC 277 ms 7008 KB
013.txt AC 276 ms 7032 KB
014.txt AC 288 ms 7016 KB
015.txt AC 278 ms 7008 KB
016.txt AC 278 ms 7128 KB
017.txt AC 275 ms 7016 KB
018.txt AC 282 ms 7008 KB
019.txt AC 275 ms 7156 KB
020.txt AC 272 ms 7152 KB
021.txt AC 41 ms 3316 KB
022.txt AC 42 ms 3316 KB
023.txt AC 261 ms 7832 KB
example0.txt AC 17 ms 3060 KB
example1.txt AC 17 ms 2940 KB