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Submission #890295

# Submission time Handle Problem Language Result Execution time Memory
890295 2023-12-21T02:05:05 Z 12345678 XORanges (eJOI19_xoranges) C++17
0 / 100
 67 ms 8016 KB 
#include <bits/stdc++.h>

using namespace std;

const int nx=2e5+5;
int n, q, a[nx], t, l, r, idx, vl, res;

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>n>>q;
    for (int i=1; i<=n; i++) cin>>a[i];
    //cout<<"here "<<(3^2^3^4^5^(3^2)^(2^3)^(3^4)^(4^5)^(3^2^3)^(2^3^4)^(3^4^5))<<'\n';
    while (q--)
    {
        cin>>t;
        if (t==1) cin>>idx>>a[idx];
        else
        {
            cin>>l>>r;
            if (l==r) res=a[l];
            else if (l+1==r) res=0;
            else if (l+2==r) res=a[l]^a[r];
            else res=a[l]^a[l+1]^a[r-1]^a[r];
            cout<<res<<'\n';
        }
    }
}

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 67 ms 8016 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -