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Submission #7133978

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```#include<bits/stdc++.h>
#define FOR(i, a, b) for (int i = (a); i < (b); ++i)
#define REP(i, n) for (int i = 0; i < (n); ++i)
#define int long long
#define vec(a,n) vector<int> (a)((n));
#define Vec(a,n) vector<string> (a)((n));
#define twovec(a,n,m) vector<vector<int>> a(n,vector<int>(m,0));
#define Twovec(a,n,m) vector<vector<double>> a(n,vector<double>(m,0));
#define P pair<int,int>
#define All(a) (a).begin(),(a).end()
#define Sort(a) sort(All(a));
#define Reverse(a) reverse(All(a));
#define PQ(n) priority_queue<P,vector<P>,greater<P>> (n)
#define pq(n) priority_queue<int> (n)
#define print(a) cout << (a) << endl;
#define printD(a) cout << setprecision(15) << (a) << endl;
using namespace std;
int max_int = 1000000007;
void Debug(auto a);
int nibul(auto a,auto b);
int nibuu(auto a,auto b);
void input(vector<int>& a,int n);

int n;

signed main(){
int x1,x2,x3,y1,y2,y3;
cin >> x1 >> y1 >> x2 >> y2 >> x3 >> y3;
double ans = abs((x1-x3)*(y2-y3)-(x2-x3)*(y1-y3));
ans /= 2;
printD(ans);
return 0;
}

void Debug(auto a){
cout << "{ ";
for(auto b: a){
cout << b << " ";
}
cout << "}" << endl;
}
int nibul(auto a,auto b){
int x = lower_bound(All(a),b) - a.begin();
//key以上の初めてのitr
return x;
}
int nibuu(auto a,auto b){
int x = upper_bound(All(a),b) - a.begin();
//key以下の最後のitr
return x-1;
}

void input(vector<int>& a,int n){
REP(i,n){
cin >> a[i];
}
}
```

#### Submission Info

Submission Time 2019-08-25 17:00:49+0900 C - 直訴 tmcoder C++14 (GCC 5.4.1) 100 1534 Byte AC 1 ms 256 KB

#### Test Cases

Set Name Score / Max Score Test Cases
all 100 / 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