#include<iostream>#include<cmath>int main(void){	using namespace std; 	int x1,y1,x2,y2;	int a,b;	double l;	cin>>x1>>y1>>x2>>y2;	l=sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2));	cout<<l<<endl;	return 0;	}
二、運算結果
三、問題及代碼
#include<iostream>#include<cmath>int main(void){	using namespace std; 	float weight,height,standard;	cin>>height>>weight;	standard=height-100;	if(weight>(standard+standard*0.2))	cout<<"超重"<<endl;	else if(weight<(standard-standard*0.2))	cout<<"超輕"<<endl;	else cout<<"正常"<<endl;	return 0;	}
四、運算結果