Submission #852019

#	Time	Username	Problem	Language	Result	Execution time	Memory
852019		AtabayRajabli	XOR Sum (info1cup17_xorsum)	C++17	0 / 100	164 ms	6900 KiB

xorsum

#include <bits/stdc++.h>
#define endll '\n'
using namespace std;

int main()
{
    int n;
    cin >> n;

    vector<int> a(n, 0);

    for(int i = 0; i<n; i++)
    {
        cin >> a[i];
    }

    int sum = 0, line = 0, orr = 0;
    for(int i = 0; i<n; i++)
    {
        line ^= a[i];
        orr |= (a[i] << 1);
    }

    cout << orr - line << endll;
}

Compilation message (stderr)

xorsum.cpp: In function 'int main()':
xorsum.cpp:17:9: warning: unused variable 'sum' [-Wunused-variable]
   17 |     int sum = 0, line = 0, orr = 0;
      |         ^~~

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