//Euzibillahiminesseytanirracim Bismillahirrahmanirrahim
/*
ID:
TASK:
LANG: C++
*/
#include <bits/stdc++.h>
#define pb push_back
#define ll long long
#define ff first
#define ss second
#define mp make_pair
#define PII pair<int,int>
#define inf 1000000001
using namespace std;
map<string,int>m , p;
int n, x[300001], y[300001], l, r;
long long ans;
int main()
{
// ifstream cin("triangles.in");
// ofstream cout("triangles.out");
cin>>n;
for(int i=1;i<=n;i++){
cin>>x[i]>>y[i];
string s = "", ss = "";
for(int j=31;j>=0;j--){
int k = (1<<j);
if(x[i]&k) s+='1';
else s+='0';
if(y[i]&k) ss+='1';
else ss+='0';
}
m[s]++;
p[ss]++;
}
for(int i=1;i<=n;i++){
string s="", ss="";
for(int j=31;j>=0;j--){
int k = (1<<j);
if(x[i]&k) s += '1';
else s += '0';
if(y[i]&k) ss += '1';
else ss +='0';
}
l = m[s];
r = p[ss];
l--;
r--;
ans += l*r;
}
cout<<ans<<"\n";
}
/*
4
0 0
1 0
0 1
1 1
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_8BBBBBBBBBBBBBBBB8ooBBBBBBB8 8BBBBBBB8
__*BBBBBBBBBBBBBBBBBBBBBBBBBB8 o88BB88BBBBBBBBBBBB
____*BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB8
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____________*BBBBBBBBBBBBBBBBBBBBBBBB8888**
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__________________*BBBBBBBBBBBBBBBB
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______________8BBBBBBBBB*8BBBBBBBBB*
______________BBBBBBBBB* BBBBBBBBB8
______________BBBBBBBB8 oBBBBBBBBB*
______________8BBBBBBB oBBBBBBBB*
______________BBBBBBB* 8BBBBBBB*
_____________8BBBBBB* BBBBBBB*
____________8BBBBBB8 oBBBBBB8
___________8BBBBBB8 8BBBBBB*
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*/
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
472 KB |
Output is correct |
3 |
Correct |
2 ms |
524 KB |
Output is correct |
4 |
Correct |
2 ms |
524 KB |
Output is correct |
5 |
Correct |
2 ms |
532 KB |
Output is correct |
6 |
Correct |
2 ms |
532 KB |
Output is correct |
7 |
Correct |
2 ms |
724 KB |
Output is correct |
8 |
Correct |
2 ms |
724 KB |
Output is correct |
9 |
Correct |
3 ms |
724 KB |
Output is correct |
10 |
Correct |
4 ms |
724 KB |
Output is correct |
11 |
Correct |
5 ms |
772 KB |
Output is correct |
12 |
Correct |
39 ms |
2068 KB |
Output is correct |
13 |
Correct |
41 ms |
2340 KB |
Output is correct |
14 |
Correct |
55 ms |
3448 KB |
Output is correct |
15 |
Correct |
741 ms |
12068 KB |
Output is correct |
16 |
Correct |
689 ms |
14576 KB |
Output is correct |
17 |
Correct |
722 ms |
16508 KB |
Output is correct |
18 |
Correct |
654 ms |
18624 KB |
Output is correct |
19 |
Execution timed out |
2049 ms |
26460 KB |
Time limit exceeded |
20 |
Halted |
0 ms |
0 KB |
- |