A29814题解

题解
1.输入
2.计算距离
3。计算植物的有关时间

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define db double
ll n;
db sum;
struct xy{
	db x,y;
	ll m;
}a[10007];
db cnt(int id){
	db sim=0,d;
	d=sqrt(  pow(a[id].x,2)  +  pow(a[id].y,2)  );
	sim+=2*d/80;
	sim+=3.2*a[id].m;
	return sim;
}
int main(){
	cin>>n;
	for(ll i=1;i<=n;i++){
		cin>>a[i].x>>a[i].y>>a[i].m;
		sum+=cnt(i);
	}
	cout<<int(sum);
	return 0;
}