Submission #1146495

#	Time	Username	Problem	Language	Result	Execution time	Memory
1146495		aliarapov	XOR Sum (info1cup17_xorsum)	C++20	7 / 100	1695 ms	4164 KiB

xorsum

#include <iostream> 
#include <vector>
#include <bitset>

signed main() {
    std::ios_base::sync_with_stdio(false);
    std::cin.tie(nullptr);std::cout.tie(nullptr);

    int n;
    std::cin >> n;
    std::vector<int> a(n);
    for (int &i : a) std::cin >> i;
    int res = 0;
    for (int i = 0; i < n; i++) {
        for (int j = i; j < n; j++) {
            res ^= a[i] + a[j];
        }
    }
    std::cout << res;
}

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