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답안 #17681

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
17681 2016-01-12T07:05:24 Z Elibay 별들과 삼각형 (IZhO11_triangle) C++14
0 / 100
 0 ms 4060 KB 
#include <bits/stdc++.h>
#define Fname "triangles"

using namespace std;

const int MaxN = 3e5 + 17, INF = 1e9 + 17, Mod = 1e9 + 7;

map < int, int > mx;
map < int, int > my;

int x[MaxN], y[MaxN], n;
long long Sum;
int main ()
{
    #ifdef Elibay
        freopen (".in", "r", stdin);
    #else
        freopen (Fname".in", "r", stdin);
        freopen (Fname".out", "w", stdout);
    #endif
    scanf ("%d", &n);
    for (int i = 1; i <= n; ++ i)
        scanf ("%d%d", &x[i], &y[i]), mx[x[i]] ++, my[y[i]] ++;
    for (int i = 1; i <= n; ++ i)
        Sum += (mx[x[i]] - 1) * (my[y[i]] - 1);
    printf ("%lld", Sum);
    return 0;
}

Subtask #1
0.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
2 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
3 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
4 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
5 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
6 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
7 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
8 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
9 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
10 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
11 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
12 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
13 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
14 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
15 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
16 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
17 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
18 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
19 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
20 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
21 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)
22 Runtime error 0 ms 4060 KB open (syscall #2) was called by the program (disallowed syscall)