20分，求错误，在线等，急！

Leaf59 @ 2024-07-27 11:59:31

#include<bits/stdc++.h>
using namespace std;
int n,k;
double a,b,c,d;
int main(){
    cin>>n>>k;
    for(int i=1;i<=n;i++){
        if(i%k==0){
        a+=i;
        c++;}
        else {
        b+=i;
        d++;}
    }
    cout<<a/c*1.0<<" "<<b/d/1.0;
    return 0;
}

by haimingbei @ 2024-07-27 12:03:24

@Leaf59 精确到小数点后 1 位,仔细省题！！！

by Leaf59 @ 2024-07-27 12:05:42

@haimingbei 怎么改？

by haimingbei @ 2024-07-27 12:05:46

@Leaf59

AC,求关

#include<bits/stdc++.h>
using namespace std;
int n,k;
double a,b,c,d;
int main(){
    cin>>n>>k;
    for(int i=1;i<=n;i++){
        if(i%k==0){
        a+=i;
        c++;}
        else {
        b+=i;
        d++;}
    }
    cout<<fixed<<setprecision(1)<<a/c*1.0<<" ";
    cout<<fixed<<setprecision(1)<<b/d*1.0;
    return 0;
}

by haimingbei @ 2024-07-27 12:06:06

@Leaf59

by Leaf59 @ 2024-07-27 12:08:11

@haimingbei 谢谢！ 回关 就

by guoyanwei120223 @ 2024-08-09 17:22:25

#include<bits/stdc++.h>
using namespace std;
int n,k;
double a,b,c,d;
int main()
{

    cin>>n>>k;
    for(int i=1;i<=n;i++)
    {
        if(i%k==0)
        {
        a+=i;
        c++;
        }
        else 
        {
        b+=i;
        d++;
        }
    }
    cout<<fixed<<setprecision(1)<<a/c*1.0<<" ";
    cout<<fixed<<setprecision(1)<<b/d*1.0;
    return 0;

}

求关

by SBGL @ 2024-08-11 20:16:54

#include<iostream>
#include<stdio.h>
#include<algorithm>
#include<windows.h>
const int N=2;
int n,k,a[N],y,z=0;
double f,g;
int main(){
    std::cin>>n>>k;
    for(int i=1;i<=n;++i){
        if(i%k==0) {y++; f+=i;}
        if(i%k!=0) {z++; g+=i;}
    }
    printf("%.1lf %.1lf",f/y,g/z);
    return 0;
} 

by Leaf59 @ 2024-08-14 18:33:09

@SBGL 谢了

by llhhss @ 2024-09-05 21:24:25

@Leaf59 不能用@SBGL的代码 #include<windows.h> 这个库洛谷网站不支持

by llhhss @ 2024-09-05 21:25:32

@SBGL #include<windows.h> 洛谷网站不支持此库