Submission #1139145

#	Time	Username	Problem	Language	Result	Execution time	Memory
1139145		Agageldi	XOR Sum (info1cup17_xorsum)	C++20	7 / 100	1695 ms	5704 KiB

xorsum

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define N 600005
#define pb push_back
#define ff first
#define ss second
#define all(x) x.begin(),x.end()

ll T, n, a[N], t;
map <int,int> vis;

int main () {
	cin >> n;
	for(int i = 1;i <= n; i++){
		cin >> a[i];
		vis[a[i]]++;
	}
		ll answer = 0;
		for(int i=1;i<=n;i++) {
			ll sum = a[i];
			for(int j = i; j <= n; j++) {
				sum += a[j];
				answer = (answer ^ sum);
				sum -= a[j];
			}
		}
		cout << answer << '\n';
		return 0;
}

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