小數點後幾位
a862. 2. My Dear Friend VIR
https://zerojudge.tw/ShowProblem?problemid=a862
有兩個方法:
cout<<fixed<<setprecision(小數點後幾位)<<數字<<endl;
printf("%.4位數\n", 變數);
#include<bits/stdc++.h>
using namespace std;
#define nn "\n"
int main(){
double n,m;
while(cin>>n>>m){
int h=1000;
cout<<fixed<<setprecision(4)<<n/m*h<<endl;
}
}
#include<bits/stdc++.h>
using namespace std;
#define nn "\n"
int main(){
double n,m;
while(cin>>n>>m){
int h=1000;
printf("%.4f\n", n/m*h);
}
}