Submission #111368
Source Code Expand
#include<algorithm> #include<string> #include<iostream> #define rep(i,n) for(int i = 0; i < n; i++) using namespace std; double x[3], y[3]; double mabs(double a){ if(a < 0) return -a; else return a;} int main(){ rep(i,3) cin >> x[i] >> y[i]; double dx = x[0]-x[1], dy = y[0]-y[1]; double ex = x[2]-x[1], ey = y[2]-y[1]; printf("%f\n",mabs(dx*ey-ex*dy)/2); return 0; }
Submission Info
Submission Time | |
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Task | C - 直訴 |
User | sinamon |
Language | C++ (G++ 4.6.4) |
Score | 0 |
Code Size | 410 Byte |
Status | CE |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:17:35: error: ‘printf’ was not declared in this scope