Submission #7467185


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#include <bits/stdc++.h>
using namespace std;
using int64 = long long;
#define int int64

int f(int n){
  if (n<=0) return 0;
  return (((n+1)/2)%2) ^ (n%2==0?n:0);
}

signed main() {
  int a,b;cin>>a>>b;
  int ans = f(b)^f(a-1);
  cerr<<f(b)<<endl;
  cerr<<f(a-1)<<endl;
  cout<<ans<<endl;
  return 0;
}

Submission Info

Submission Time
Task D - XOR World
User task4233
Language C++14 (GCC 5.4.1)
Score 400
Code Size 325 Byte
Status
Exec Time 1 ms
Memory 256 KB

Judge Result

Set Name All Sample
Score / Max Score 400 / 400 0 / 0
Status
× 26
× 3
Set Name Test Cases
All 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 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 1 ms 256 KB
testcase_21 1 ms 256 KB
testcase_22 1 ms 256 KB
testcase_23 1 ms 256 KB