結果
問題 | No.947 ABC包囲網 |
ユーザー | FF256grhy |
提出日時 | 2019-12-10 16:39:09 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 808 ms / 2,000 ms |
コード長 | 3,066 bytes |
コンパイル時間 | 2,018 ms |
コンパイル使用メモリ | 177,216 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-24 01:51:48 |
合計ジャッジ時間 | 22,430 ms |
ジャッジサーバーID (参考情報) |
judge4 / 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
6,816 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,944 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,944 KB |
testcase_10 | AC | 2 ms
6,940 KB |
testcase_11 | AC | 2 ms
6,940 KB |
testcase_12 | AC | 2 ms
6,940 KB |
testcase_13 | AC | 2 ms
6,940 KB |
testcase_14 | AC | 2 ms
6,944 KB |
testcase_15 | AC | 5 ms
6,944 KB |
testcase_16 | AC | 3 ms
6,940 KB |
testcase_17 | AC | 3 ms
6,940 KB |
testcase_18 | AC | 4 ms
6,940 KB |
testcase_19 | AC | 5 ms
6,940 KB |
testcase_20 | AC | 4 ms
6,940 KB |
testcase_21 | AC | 4 ms
6,944 KB |
testcase_22 | AC | 4 ms
6,940 KB |
testcase_23 | AC | 4 ms
6,940 KB |
testcase_24 | AC | 4 ms
6,940 KB |
testcase_25 | AC | 5 ms
6,944 KB |
testcase_26 | AC | 4 ms
6,940 KB |
testcase_27 | AC | 4 ms
6,944 KB |
testcase_28 | AC | 563 ms
6,940 KB |
testcase_29 | AC | 806 ms
6,944 KB |
testcase_30 | AC | 584 ms
6,940 KB |
testcase_31 | AC | 789 ms
6,940 KB |
testcase_32 | AC | 798 ms
6,944 KB |
testcase_33 | AC | 794 ms
6,944 KB |
testcase_34 | AC | 799 ms
6,940 KB |
testcase_35 | AC | 790 ms
6,944 KB |
testcase_36 | AC | 788 ms
6,940 KB |
testcase_37 | AC | 792 ms
6,940 KB |
testcase_38 | AC | 793 ms
6,944 KB |
testcase_39 | AC | 798 ms
6,944 KB |
testcase_40 | AC | 789 ms
6,940 KB |
testcase_41 | AC | 800 ms
6,940 KB |
testcase_42 | AC | 792 ms
6,940 KB |
testcase_43 | AC | 799 ms
6,940 KB |
testcase_44 | AC | 808 ms
6,944 KB |
testcase_45 | AC | 792 ms
6,940 KB |
testcase_46 | AC | 794 ms
6,940 KB |
testcase_47 | AC | 785 ms
6,940 KB |
testcase_48 | AC | 782 ms
6,940 KB |
testcase_49 | AC | 796 ms
6,944 KB |
testcase_50 | AC | 791 ms
6,944 KB |
testcase_51 | AC | 3 ms
6,944 KB |
testcase_52 | AC | 2 ms
6,944 KB |
testcase_53 | AC | 2 ms
6,944 KB |
testcase_54 | AC | 2 ms
6,944 KB |
testcase_55 | AC | 2 ms
6,940 KB |
testcase_56 | AC | 2 ms
6,944 KB |
testcase_57 | AC | 5 ms
6,944 KB |
testcase_58 | AC | 5 ms
6,944 KB |
testcase_59 | AC | 5 ms
6,944 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using LL = long long int; #define incID(i, l, r) for(int i = (l) ; i < (r); ++i) #define incII(i, l, r) for(int i = (l) ; i <= (r); ++i) #define decID(i, l, r) for(int i = (r) - 1; i >= (l); --i) #define decII(i, l, r) for(int i = (r) ; i >= (l); --i) #define inc(i, n) incID(i, 0, n) #define inc1(i, n) incII(i, 1, n) #define dec(i, n) decID(i, 0, n) #define dec1(i, n) decII(i, 1, n) #define inID(v, l, r) ((l) <= (v) && (v) < (r)) #define inII(v, l, r) ((l) <= (v) && (v) <= (r)) #define PB push_back #define EB emplace_back #define MP make_pair #define FI first #define SE second #define ALL(v) v.begin(), v.end() #define RALL(v) v.rbegin(), v.rend() auto setmin = [](auto & a, auto b) { return (b < a ? a = b, true : false); }; auto setmax = [](auto & a, auto b) { return (b > a ? a = b, true : false); }; auto setmineq = [](auto & a, auto b) { return (b <= a ? a = b, true : false); }; auto setmaxeq = [](auto & a, auto b) { return (b >= a ? a = b, true : false); }; auto fl = [](auto a, auto b) { assert(b != 0); return a / b - (a % b != 0 && ((a >= 0) != (b >= 0)) ? 1 : 0); }; auto ce = [](auto a, auto b) { assert(b != 0); return a / b + (a % b != 0 && ((a >= 0) == (b >= 0)) ? 1 : 0); }; auto mo = [](auto a, auto b) { assert(b != 0); a %= b; if(a < 0) { a += abs(b); } return a; }; LL gcd(LL a, LL b) { return (b == 0 ? a : gcd(b, a % b)); } LL lcm(LL a, LL b) { return a / gcd(a, b) * b; } #define bit(b, i) (((b) >> (i)) & 1) #define SI(v) static_cast<int>(v.size()) #define RF(e, v) for(auto & e: v) #define until(e) while(! (e)) #define if_not(e) if(! (e)) #define ef else if #define UR assert(false) // ---- ---- #define LB(v, x) (lower_bound(ALL(v), x) - v.begin()) #define UB(v, x) (upper_bound(ALL(v), x) - v.begin()) class Point { private: LL x, y; int f() { return ((x > 0 && y == 0) || y > 0 ? 0 : 1); } public: Point(LL xx, LL yy) { assert(! (xx == 0 && yy == 0)); x = xx; y = yy; } static LL cross(Point a, Point b) { return a.x * b.y - a.y * b.x; } friend bool operator==(Point a, Point b) { return (a.f() == b.f() && 0 == cross(a, b)) ; } friend bool operator< (Point a, Point b) { return (a.f() < b.f() || (a.f() == b.f() && 0 < cross(a, b))); } friend bool operator<=(Point a, Point b) { return (a.f() < b.f() || (a.f() == b.f() && 0 <= cross(a, b))); } Point operator-() { return Point(-x, -y); } Point p90() { return Point(-y, +x); } Point m90() { return Point(+y, -x); } LL get_x() { return x; } LL get_y() { return y; } friend ostream & operator<<(ostream & os, Point p) { return (os << p.x << " " << p.y); } }; int main() { int n; cin >> n; vector<Point> v; inc(i, n) { LL x, y; cin >> x >> y; v.EB(x, y); } sort(ALL(v)); LL ans = 0; inc(i, n) { inc(j, i) { Point a = -v[i]; Point b = -v[j]; if(Point::cross(a, b) == 0) { continue; } if(Point::cross(a, b) < 0) { swap(a, b); } int c = LB(v, b) - UB(v, a); ans += (a < b ? c : n + c); } } cout << ans / 3 << endl; return 0; }