Submission #1219623

#	Time	Username	Problem	Language	Result	Execution time	Memory
1219623		durdona	XORanges (eJOI19_xoranges)	Pypy 3	55 / 100	1100 ms	84416 KiB

xoranges

n,q=map(int,input().split())
arr=list(map(int,input().split()))
for i in range(q):
    s,l,r=map(int,input().split())
    if s==1:
        arr[l-1]=r
    else:
        m=0
        for i in range(l-1,r):
            if (i-(l-1)+1)*(r-i)%2==1:m^=arr[i]
        print(m)

Compilation message (stdout)

Compiling 'xoranges.py'...

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  adding: __main__.pyc (deflated 27%)

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• Subtask 1: 12 / 12
• Subtask 2: 18 / 18
• Subtask 3: 25 / 25
• Subtask 4: 0 / 20
• Subtask 5: 0 / 25