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我官方数据都过了,但交上去就是WA,莫非数据加强了?哪位路过的大虾帮忙看一下……#include<iostream> #include<cmath> using namespace std; int main() { freopen("1.txt","w",stdout); int t; scanf("%d",&t); while(t--) { double ax,ay,bx,by,cx,cy; scanf("%lf%lf%lf%lf%lf%lf",&ax,&ay,&bx,&by,&cx,&cy); double hy=(((cx-ax)*(ax-bx)+(ay-by)*cy)*(cx-bx)+(by-cy)*(ax-bx)*ay)/((by-cy)*(ax-bx)+(cx-bx)*(ay-by)); double hx; if(abs(ax-bx)>1e-8)hx=cx-(hy-cy)*(ay-by)/(ax-bx); else hx=ax-(ay-hy)*(by-cy)/(cx-bx); printf("%.4lf %.4lf\n",hx,hy); } return 0; } Followed by:
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