Submission #2929761


Source Code Expand

#include <bits/stdc++.h>
using namespace std;
int a,b,c,d,x,y;
double i,j,k,h;
int main(){
    cin>>a>>b>>c>>d>>x>>y;
    i=sqrt(pow(a-c,2)+pow(b-d,2));
    j=sqrt(pow(x-c,2)+pow(y-d,2));
    k=sqrt(pow(a-x,2)+pow(b-y,2));
    h=1.0*(i+j+ca)/2;
    printf("%.1lf",sqrt(h*(h-i)*(h-j)*(h-k)));
    return 0;
}

Submission Info

Submission Time
Task C - 直訴
User luogu_bot4
Language C++ (GCC 5.4.1)
Score 0
Code Size 319 Byte
Status CE

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:10:16: error: ‘ca’ was not declared in this scope
     h=1.0*(i+j+ca)/2;
                ^