oj.uz

답안 #593297

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
593297 2022-07-10T19:45:12 Z daisy2 별들과 삼각형 (IZhO11_triangle) C++14
100 / 100
 352 ms 5304 KB 
#include<iostream>
#include<algorithm>
#include<unordered_map>
using namespace std;
int n,x[300005],y[300005];
unordered_map <long long,long long> row,col;
int main()
{
   cin>>n;

   for(int i=0;i<n;i++)
   {
       cin>>x[i]>>y[i];
       if(!col.count(x[i]))
        col[x[i]]=0;

        if(!row.count(y[i]))
        row[y[i]]=0;

        col[x[i]]++;
        row[y[i]]++;
   }
   long long br=0;
   for(int i=0;i<n;i++)
   {
       br+=(row[y[i]]-1)*(col[x[i]]-1);
   }
   cout<<br<<endl;
}

Compilation message

triangle.cpp: In function 'int main()':
triangle.cpp:14:8: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   14 |        if(!col.count(x[i]))
      |        ^~
triangle.cpp:17:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   17 |         if(!row.count(y[i]))
      |         ^~

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 9 ms 724 KB Output is correct
13 Correct 10 ms 724 KB Output is correct
14 Correct 11 ms 1056 KB Output is correct
15 Correct 94 ms 3668 KB Output is correct
16 Correct 104 ms 3784 KB Output is correct
17 Correct 98 ms 3596 KB Output is correct
18 Correct 93 ms 3716 KB Output is correct
19 Correct 352 ms 5192 KB Output is correct
20 Correct 196 ms 4660 KB Output is correct
21 Correct 272 ms 5276 KB Output is correct
22 Correct 275 ms 5304 KB Output is correct