CSP题解|202309-2 坐标变换（其二）|80分

#include <bits/stdc++.h>
using namespace std;
class point{
	public:
		double x;
		double y;
		point(double x,double y){
			this->x = x;
			this->y = y;
		}
		point(){
			x=0;y=0;
		}
		void multiply(double k){
			this->x*=k;
			this->y*=k;
		}
		void rotate(double k){
			double tempX=x,tempY=y;
			x = tempX*cos(k)-tempY*sin(k);
			y = tempX*sin(k)+tempY*cos(k);
		}
		void say(){
			cout<<fixed<<setprecision(3)<<x<<" "<<fixed<<setprecision(3)<<y<<endl;
		}
};
class change{
	public:
	int type;
	double data;
	change(){
		type=0;
		data=0;
	}
	change(int i, double d){
		type=i;
		data=d;
	}
};
int main() {
   int opNum,queryNum;
   cin>>opNum>>queryNum;
   vector<change>ops;
   for(int i =0;i<opNum;i++){
   	int type;double d;
   	cin>>type>>d;
   	change c(type,d);
   	ops.push_back(c);
   }
   //开始输入操作数起始结尾和坐标
   while(queryNum--){
   	int beginNum,endNum;double x,y;
   	cin>>beginNum>>endNum>>x>>y;
   	beginNum--;endNum--;
   	point p(x,y);
   	for(int i =beginNum;i<=endNum;i++){
   		if(ops[i].type == 1){
   			p.multiply(ops[i].data);
		   }else{
		   	p.rotate(ops[i].data);
		   }
	   }
	   p.say();
   } 
    
}

80分，超时了...