7 solutions

  • 0
    @ 2021-10-17 19:32:01

    题解

    思路还是简单,把打水时间从小到大进行排序即可,注意一点,在打水的人本身不算等待的时间,直接上代码:

    代码

    #include<bits/stdc++.h>
    #include<iostream>
    #include<algorithm>
    #include<iomanip>
    using namespace std;
    int x[100000000],y[17];
    char a[11],b[18];
    struct Main{
    	char a[20];
    	int cheng;
    }pp[300];
    int cmp(Main x,Main y){
    	return x.cheng>y.cheng;
    }
    int main()
    {
    	long long n,m,sum=0;
    	cin>>n;
    	m=n-1;
    	for(long long i=1;i<=n;i++){
    		cin>>x[i];
    	}
    	sort(x+1,x+1+n);
    	for(long long i=1;i<=n;i++){
    		sum+=x[i]*m;
    		m--;
    	} 
    	cout<<sum<<endl;
    	return 0;
    }
    

    Information

    ID
    76
    Time
    1000ms
    Memory
    256MiB
    Difficulty
    6
    Tags
    # Submissions
    251
    Accepted
    78
    Uploaded By