Submission #4650466


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#include <cstdlib>
#include <cmath>
#include <climits>
#include <cfloat>
#include <map>
#include <utility>
#include <set>
#include <iostream>
#include <memory>
#include <string>
#include <vector>
#include <algorithm>
#include <functional>
#include <sstream>
#include <deque>
#include <complex>
#include <stack>
#include <queue>
#include <cstdio>
#include <cctype>
#include <cstring>
#include <ctime>
#include <iterator>
#include <bitset>
#include <numeric>
#include <list>
#include <iomanip>
#include <stack>
using namespace std;
#define ll int64_t
const long mod = 1e9 + 7;


const long LINF = 1e13;
const long LLINF = 1e18;
const long ALPHABET = 26;

template <class T>
void Swap(T& r, T& l) {
  T tmp = r;
  r = l;
  l = tmp;
}

template<typename T>
istream& operator >> (istream& is, vector<T>& vec) {
  for (T& x : vec) is >> x; //for(int i=0; i<vec.size(); i++) is >> x[i]; とかでもいい
  return is;
}




int main() {

  long n, a, b, c;

  double deg, dis;

  vector<pair<long,long>> p(3,pair<long,long>());

  for (int i = 0; i < 3; ++i){
    cin >> p[i].first;
    cin >> p[i].second;
  }

  long x = p[0].first;
  long y = p[0].second;

  p[0].first = 0;
  p[0].second = 0;

  p[1].first -= x;
  p[1].second -= y;

  p[2].first -= x;
  p[2].second -= y;



  double ans = 0;

  ans = abs((double)p[1].first * (double)p[2].second - (double)p[1].second * (double)p[2].first) / (double)2;



  cout << ans <<endl;


}


















Submission Info

Submission Time
Task C - 直訴
User popolo5555
Language C++14 (GCC 5.4.1)
Score 0
Code Size 1558 Byte
Status
Exec Time 1 ms
Memory 256 KB

Judge Result

Set Name Score / Max Score Test Cases
all 0 / 100 00_sample_01.txt, 00_sample_02.txt, 00_sample_03.txt, test_01.txt, test_02.txt, test_03.txt, test_04.txt, test_05.txt, test_06.txt, test_07.txt, test_08.txt, test_09.txt, test_10.txt, test_11.txt, test_12.txt, test_13.txt, test_14.txt, test_15.txt, test_16.txt, test_17.txt, test_18.txt, test_19.txt, test_20.txt, test_21.txt, test_22.txt, test_23.txt, test_24.txt, test_25.txt, test_26.txt, test_27.txt, test_28.txt, test_29.txt, test_30.txt, test_31.txt, test_32.txt, test_33.txt, test_34.txt, test_35.txt, test_36.txt, test_37.txt, test_38.txt, test_39.txt, test_40.txt, test_41.txt, test_42.txt, test_43.txt, test_44.txt, test_45.txt, test_46.txt, test_47.txt, test_48.txt, test_49.txt, test_50.txt, test_51.txt, test_52.txt, test_53.txt, test_54.txt, test_55.txt, test_56.txt, test_57.txt, test_58.txt, test_59.txt, test_60.txt, test_61.txt, test_62.txt, test_63.txt, test_64.txt, test_65.txt, test_66.txt, test_67.txt, test_68.txt, test_69.txt
Case Name Status Exec Time Memory
00_sample_01.txt 1 ms 256 KB
00_sample_02.txt 1 ms 256 KB
00_sample_03.txt 1 ms 256 KB
test_01.txt 1 ms 256 KB
test_02.txt 1 ms 256 KB
test_03.txt 1 ms 256 KB
test_04.txt 1 ms 256 KB
test_05.txt 1 ms 256 KB
test_06.txt 1 ms 256 KB
test_07.txt 1 ms 256 KB
test_08.txt 1 ms 256 KB
test_09.txt 1 ms 256 KB
test_10.txt 1 ms 256 KB
test_11.txt 1 ms 256 KB
test_12.txt 1 ms 256 KB
test_13.txt 1 ms 256 KB
test_14.txt 1 ms 256 KB
test_15.txt 1 ms 256 KB
test_16.txt 1 ms 256 KB
test_17.txt 1 ms 256 KB
test_18.txt 1 ms 256 KB
test_19.txt 1 ms 256 KB
test_20.txt 1 ms 256 KB
test_21.txt 1 ms 256 KB
test_22.txt 1 ms 256 KB
test_23.txt 1 ms 256 KB
test_24.txt 1 ms 256 KB
test_25.txt 1 ms 256 KB
test_26.txt 1 ms 256 KB
test_27.txt 1 ms 256 KB
test_28.txt 1 ms 256 KB
test_29.txt 1 ms 256 KB
test_30.txt 1 ms 256 KB
test_31.txt 1 ms 256 KB
test_32.txt 1 ms 256 KB
test_33.txt 1 ms 256 KB
test_34.txt 1 ms 256 KB
test_35.txt 1 ms 256 KB
test_36.txt 1 ms 256 KB
test_37.txt 1 ms 256 KB
test_38.txt 1 ms 256 KB
test_39.txt 1 ms 256 KB
test_40.txt 1 ms 256 KB
test_41.txt 1 ms 256 KB
test_42.txt 1 ms 256 KB
test_43.txt 1 ms 256 KB
test_44.txt 1 ms 256 KB
test_45.txt 1 ms 256 KB
test_46.txt 1 ms 256 KB
test_47.txt 1 ms 256 KB
test_48.txt 1 ms 256 KB
test_49.txt 1 ms 256 KB
test_50.txt 1 ms 256 KB
test_51.txt 1 ms 256 KB
test_52.txt 1 ms 256 KB
test_53.txt 1 ms 256 KB
test_54.txt 1 ms 256 KB
test_55.txt 1 ms 256 KB
test_56.txt 1 ms 256 KB
test_57.txt 1 ms 256 KB
test_58.txt 1 ms 256 KB
test_59.txt 1 ms 256 KB
test_60.txt 1 ms 256 KB
test_61.txt 1 ms 256 KB
test_62.txt 1 ms 256 KB
test_63.txt 1 ms 256 KB
test_64.txt 1 ms 256 KB
test_65.txt 1 ms 256 KB
test_66.txt 1 ms 256 KB
test_67.txt 1 ms 256 KB
test_68.txt 1 ms 256 KB
test_69.txt 1 ms 256 KB