是精度的问题吗
by ZeroF @ 2023-02-12 09:46:48
@[0x0F](/user/385165)
```
#include<bits/stdc++.h>
#define double long double
using namespace std;
int l[200010],r[200010],s[200010],n;
bool cal(double sp){
double sum=0;
for(int i=1;i<=n;i++){
sum+=1.0*s[i]/sp;
if(sum>r[i])return false;
if(sum<l[i])sum=l[i];
}
return true;
}
int main(){
cin>>n;
for(int i=1;i<=n;i++){
cin>>l[i]>>r[i]>>s[i];
}
double p=0;
double eps=1e-7;
for(double i=1e8;i>=eps;i/=2){
if(!cal(p+i))p+=i;
}
cout<<fixed<<setprecision(2)<<p<<endl;
return 0;
}
by 1234567_scp @ 2023-02-12 10:00:50
$x_i \leq y_i \leq 10^8$
by Loser_Syx @ 2023-02-12 10:06:38
@[Saint_ying_xtf](/user/852144) ~~眼瞎了~~
by ZeroF @ 2023-02-12 10:12:47
@[0x0F](/user/385165) 你改eps干嘛，改的是最后的i，初始1e8
by Loser_Syx @ 2023-02-12 10:16:14