Submission #4531300


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

int main()
{
	auto f = [](int64_t n) {
		int64_t r = 0;
		for (int64_t i = n; n / 4 * 4 <= i; i--)
		{
			r ^= i;
		}
		return r;
	};

	int64_t a, b;
	cin >> a >> b;

	cout << (f(b) ^ f(a) ^ a) << endl;

	return 0;
}

Submission Info

Submission Time
Task D - XOR World
User jbyxm
Language C++14 (GCC 5.4.1)
Score 400
Code Size 283 Byte
Status
Exec Time 3 ms
Memory 384 KB

Test Cases

Set Name Score / Max Score Test Cases
All 400 / 400 sample_01, sample_02, sample_03, testcase_01, testcase_02, testcase_03, testcase_04, testcase_05, testcase_06, testcase_07, testcase_08, testcase_09, testcase_10, testcase_11, testcase_12, testcase_13, testcase_14, testcase_15, testcase_16, testcase_17, testcase_18, testcase_19, testcase_20, testcase_21, testcase_22, testcase_23
Sample 0 / 0 sample_01, sample_02, sample_03
Case Name Status Exec Time Memory
sample_01 1 ms 256 KB
sample_02 1 ms 256 KB
sample_03 1 ms 256 KB
testcase_01 1 ms 256 KB
testcase_02 1 ms 256 KB
testcase_03 1 ms 256 KB
testcase_04 1 ms 256 KB
testcase_05 1 ms 256 KB
testcase_06 1 ms 256 KB
testcase_07 1 ms 256 KB
testcase_08 1 ms 256 KB
testcase_09 1 ms 256 KB
testcase_10 1 ms 256 KB
testcase_11 1 ms 256 KB
testcase_12 1 ms 256 KB
testcase_13 1 ms 256 KB
testcase_14 1 ms 256 KB
testcase_15 1 ms 256 KB
testcase_16 1 ms 256 KB
testcase_17 1 ms 256 KB
testcase_18 1 ms 256 KB
testcase_19 1 ms 256 KB
testcase_20 3 ms 384 KB
testcase_21 1 ms 256 KB
testcase_22 1 ms 256 KB
testcase_23 1 ms 256 KB