chao ni ma

@卢梓辰 你好帅

感谢

@卢梓辰 你好誜

#include<bits/stdc++.h>
using namespace std;
int main() {
	freopen("happy.in", "r", stdin);  
    freopen("happy.out", "w", stdout);  
    int n,a,b;  
    cin>>n>>a>>b;  
    int wo_cao_zhe_ge_shu_biao=n *a;  
    for(int i=1;i<=n/4;i++){  
        int S_shu_biao =b*i*i;  
		int huan_yi_ge_shu_biao_ba=n-4*i; 
        if(huan_yi_ge_shu_biao_ba>=0){  
            int qu_qu_le=a*huan_yi_ge_shu_biao_ba;  
            int huan_shu_biao_ba=S_shu_biao+qu_qu_le;  
            wo_cao_zhe_ge_shu_biao=max(wo_cao_zhe_ge_shu_biao, huan_shu_biao_ba);  
        }  
    }  
    cout<<wo_cao_zhe_ge_shu_biao;   
	return 0;
}

#include<bits/stdc++.h>
using namespace std;
int main() {
    int n,a,b;  
    cin>>n>>a>>b;  
    int sum=0;  
    sum=n*a;  
    for(int i=1;i*i<=n;i++){  
        int pf=i*i;     
        int cnm=n-pf;       
        if(cnm>=0){  
            int wc=(pf*b)+(cnm*a);  
            sum=max(sum,wc);  
        }  
    }  
    cout<<sum; 
	return 0;
}

666

using namespace std;
int main() {
	freopen("happy.in","r",stdin);
	freopen("happy.out","w",stdout);
	int a,b,c;
	cin>>a>>b>>c;
	int sum=0,sum1=0;
	sum=b*a;
	sum1=c*int(a/4*a/4);
	if(a-a/4*4!=0){
		sum1+=b*(a-a/4*4);
	}
	if(sum>sum1){
		cout<<sum;
	}
	else if(sum1>sum){
		cout<<sum1;
	}
	else{
		cout<<sum1;
	}
	

	return 0;
}

李晨硕你太帅了