Submission #1206216

#	Time	Username	Problem	Language	Result	Execution time	Memory
1206216		tamzid	XOR Sum (info1cup17_xorsum)	C++20	7 / 100	1695 ms	8260 KiB

xorsum

#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
using ll = long long;
#define pb push_back
#define F first
#define S second
#define vii vector<int>
#define vl vector<long long>
#define cinv(v)  for (auto &it : v) cin >> it;
#define coutv(v) for (auto &it : v) cout << it << " "; cout << '\n';
#define dbg_var(x,y) cout<<y<<"# Debugging: "<<x<<'\n';
using namespace std;
//using namespace __gnu_pbds;
//template<class T> using ordset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

void solve()
{
    int n;
    cin>>n;
    ll xx = 0;
    vl v(n);
    cinv(v);
    for(int i=0;i<n;++i)
    {
        for(int j=i;j<n;++j)
        {
            xx = xx ^ (v[i] + v[j]);
        }
    }
    cout<<xx;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    //int t;cin>>t;while(t--)
        solve();

    return 0;
}

• Subtask 1: 7 / 7
• Subtask 2: 0 / 11
• Subtask 3: 0 / 21
• Subtask 4: 0 / 38
• Subtask 5: 0 / 23