Submission #1178326

#	Time	Username	Problem	Language	Result	Execution time	Memory
1178326		vladkonoval	XORanges (eJOI19_xoranges)	C++20	0 / 100	1097 ms	2176 KiB

xoranges

#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
long long n,q,a[200007],l,r,type,res,i,j,res1;
int main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin>>n>>q;
    for (i=1;i<=n;i++) cin>>a[i];
    while (q--) {
        cin>>type>>l>>r;
        res = 0;
        res1 = 0;
        if (type==1) {
            a[l] = r;
        }
        else {
            for (i=l;i<=r;i++) res1^=a[i];
            for (i=l+1;i<=r;i++) {
                res^=a[i]^a[i-1];
            }
            cout<<(res^res1)<<endl;
        }

    }
    return 0;
}

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