結果
問題 | No.2769 Number of Rhombi |
ユーザー | pitP |
提出日時 | 2024-06-01 10:13:25 |
言語 | C++23(gcc13) (gcc 13.2.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 1,893 ms / 5,000 ms |
コード長 | 2,260 bytes |
コンパイル時間 | 8,422 ms |
コンパイル使用メモリ | 336,396 KB |
実行使用メモリ | 81,664 KB |
最終ジャッジ日時 | 2024-12-21 15:42:25 |
合計ジャッジ時間 | 61,974 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
5,248 KB |
testcase_01 | AC | 3 ms
5,248 KB |
testcase_02 | AC | 3 ms
5,248 KB |
testcase_03 | AC | 1,069 ms
63,104 KB |
testcase_04 | AC | 1,000 ms
58,496 KB |
testcase_05 | AC | 870 ms
41,600 KB |
testcase_06 | AC | 1,182 ms
52,096 KB |
testcase_07 | AC | 1,540 ms
63,360 KB |
testcase_08 | AC | 1,551 ms
64,896 KB |
testcase_09 | AC | 1,644 ms
67,968 KB |
testcase_10 | AC | 1,732 ms
72,320 KB |
testcase_11 | AC | 1,692 ms
75,904 KB |
testcase_12 | AC | 1,816 ms
78,592 KB |
testcase_13 | AC | 1,839 ms
80,128 KB |
testcase_14 | AC | 1,882 ms
81,152 KB |
testcase_15 | AC | 1,820 ms
81,280 KB |
testcase_16 | AC | 1,862 ms
81,408 KB |
testcase_17 | AC | 1,867 ms
81,536 KB |
testcase_18 | AC | 1,838 ms
81,536 KB |
testcase_19 | AC | 1,860 ms
81,664 KB |
testcase_20 | AC | 1,893 ms
81,536 KB |
testcase_21 | AC | 1,807 ms
81,664 KB |
testcase_22 | AC | 1,823 ms
81,664 KB |
testcase_23 | AC | 1,858 ms
81,664 KB |
testcase_24 | AC | 3 ms
5,248 KB |
testcase_25 | AC | 1,787 ms
80,128 KB |
testcase_26 | AC | 1,811 ms
80,896 KB |
testcase_27 | AC | 1,830 ms
81,536 KB |
testcase_28 | AC | 1,817 ms
81,408 KB |
testcase_29 | AC | 1,820 ms
81,664 KB |
testcase_30 | AC | 1,846 ms
81,408 KB |
testcase_31 | AC | 1,765 ms
78,592 KB |
testcase_32 | AC | 1,504 ms
64,640 KB |
testcase_33 | AC | 1,540 ms
64,512 KB |
testcase_34 | AC | 1,623 ms
70,528 KB |
ソースコード
#include <bits/stdc++.h> #include <atcoder/all> using namespace std; using namespace atcoder; istream &operator>>(istream &is, modint &a) { long long v; is >> v; a = v; return is; } ostream &operator<<(ostream &os, const modint &a) { return os << a.val(); } istream &operator>>(istream &is, modint998244353 &a) { long long v; is >> v; a = v; return is; } ostream &operator<<(ostream &os, const modint998244353 &a) { return os << a.val(); } istream &operator>>(istream &is, modint1000000007 &a) { long long v; is >> v; a = v; return is; } ostream &operator<<(ostream &os, const modint1000000007 &a) { return os << a.val(); } typedef long long ll; typedef vector<vector<int>> Graph; typedef pair<int, int> pii; typedef pair<ll, ll> pll; #define FOR(i,l,r) for (int i = l;i < (int)(r); i++) #define rep(i,n) for (int i = 0;i < (int)(n); i++) #define all(x) x.begin(), x.end() #define rall(x) x.rbegin(), x.rend() #define my_sort(x) sort(x.begin(), x.end()) #define my_max(x) *max_element(all(x)) #define my_min(x) *min_element(all(x)) template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } const int INF = (1<<30) - 1; const ll LINF = (1LL<<62) - 1; const int MOD = 998244353; const int MOD2 = 1e9+7; const double PI = acos(-1); vector<int> di = {1,0,-1,0}; vector<int> dj = {0,1,0,-1}; #ifdef LOCAL # include <debug_print.hpp> # define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__) #else # define debug(...) (static_cast<void>(0)) #endif int main(){ cin.tie(0); ios_base::sync_with_stdio(false); int N; cin >> N; vector<ll> x(N), y(N); rep(i, N) cin >> x[i] >> y[i]; using P = tuple<ll, ll, ll, ll>; map<P, ll> mp; rep(i, N)rep(j, N)if(i != j){ ll xm = x[i] + x[j]; ll ym = y[i] + y[j]; ll dx = x[i] - x[j]; ll dy = y[i] - y[j]; ll g = __gcd(abs(dx), abs(dy)); dx /= g; dy /= g; mp[P{xm, ym, dx, dy}]++; } ll ans = 0; for(auto &[dat, val] : mp){ auto [xm, ym, dx, dy] = dat; if(mp.count(P{xm, ym, dy, -dx})) ans += mp[P{xm, ym, dy, -dx}] * val; } cout << ans / 4 << endl; }