Nina__happy @ 2024-07-29 19:35:02
对于一个蒟蒻来说，连题都读不懂（好吧，确切的来说是冒得方法做啊喂）哪位大佬解释哈子巴
by Grace25 @ 2024-07-29 19:36:45
两两算一下加起来不就好了
by Nina__happy @ 2024-07-29 19:38:06
@Grace25 嗷嗷嗷，感谢大佬
by Grace25 @ 2024-07-29 19:40:53
@Nina__happy 不客气awa
by Nina__happy @ 2024-07-29 19:41:43
@Grace25 聪明如你
by Grace25 @ 2024-07-29 19:43:27
@Nina__happy 好家伙
by Nina__happy @ 2024-07-29 19:48:51
/```#include<bits/stdc++.h>
using namespace std;
bool jl(int a,int b,int c,int d){
int num=sqrt(abs((a-c)(a-c))+abs((b-d)(b-d))); return num; }
int main(){
int a,b,c,d,e,f;
cin>>a>>b>>c>>d>>e>>f;
int num=jl(a,b,c,d)+jl(a,b,e,f)+jl(c,d,e,f);
cout<<num;} ```\ 0分求助
by chenxu11 @ 2024-07-29 20:05:28
直接代入公式就行了
#include<iostream>
#include<cstdio>
#include<cmath>
using namespace std;
double f(double x1,double y1,double x2,double y2){
double dis;
dis= double (sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1)));
return dis;
}
int main(){
double x[5],y[5];
double s=0;
for(int i=1;i<=3;i++)
cin>>x[i]>>y[i];
s+=f(x[1],y[1],x[2],y[2]);
s+=f(x[1],y[1],x[3],y[3]);
s+=f(x[3],y[3],x[2],y[2]);
printf("%.2lf",s);
return 0;
}by Nina__happy @ 2024-07-29 20:06:46
@chenxu11 三克油