Submission #6095325


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#include<bits/stdc++.h>
using namespace std;
int main() {
	double x1,y1,x2,y2,x3,y3,s,p,a,b,c,x,y,z;
	cin>>x1>>y1>>x2>>y2>>x3>>y3;
	x=(x2-x1)*(x2-x1)+(y2-y1)*(y2-y1);
	y=(x3-x1)*(x3-x1)+(y3-y1)*(y3-y1);
	z=(x3-x2)*(x3-x2)+(y3-y2)*(y3-y2);
	a=sqrt(x);
	b=sqrt(y);
	c=sqrt(z);
	p=(a+b+c)/2;
	s=sqrt(p*(p-a)*(p-b)*(p-c));
	printf("%.1lf\n",s);
	return 0;
}

Submission Info

Submission Time
Task C - 直訴
User luogu_bot4
Language C++ (GCC 5.4.1)
Score 100
Code Size 368 Byte
Status
Exec Time 1 ms
Memory 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