Submission #2014211

Source Code Expand

N = int(input())
xor = lsbsum = 0
for i in range(N):
    n = int(input())
    xor ^= n
    lsbsum |= (n&-n)

ans = 0
while xor > 0:
    msb = 1 << (len(str(bin(xor))) - 3)
    if lsbsum & msb:
        ans += 1
        xor ^= ((msb << 1) - 1)
    else:
        print(-1)
        exit()
print(ans)

Submission Info

Submission Time
Task C - Cheating Nim
User prd_xxx
Language Python (3.4.3)
Score 500
Code Size 313 Byte
Status AC
Exec Time 233 ms
Memory 3060 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 3060 KB
002.txt AC 216 ms 3060 KB
003.txt AC 139 ms 3060 KB
004.txt AC 109 ms 3060 KB
005.txt AC 77 ms 3060 KB
006.txt AC 233 ms 3060 KB
007.txt AC 224 ms 3060 KB
008.txt AC 219 ms 3060 KB
009.txt AC 212 ms 3060 KB
010.txt AC 225 ms 3060 KB
011.txt AC 218 ms 3060 KB
012.txt AC 220 ms 3060 KB
013.txt AC 215 ms 3060 KB
014.txt AC 218 ms 3060 KB
015.txt AC 219 ms 3060 KB
016.txt AC 218 ms 3060 KB
017.txt AC 221 ms 3060 KB
018.txt AC 209 ms 3060 KB
019.txt AC 217 ms 3060 KB
020.txt AC 209 ms 3060 KB
021.txt AC 35 ms 3060 KB
022.txt AC 36 ms 3060 KB
023.txt AC 217 ms 3060 KB
example0.txt AC 17 ms 2940 KB
example1.txt AC 17 ms 3060 KB