大佬帮帮蒟蒻 :(

A_little_Jerry @ 2023-06-05 19:29:52

#include <bits/stdc++.h>
using namespace std;
main()
{
    float sum1 , sum2;
    cin >> sum1;
    if (sum1 <= 150)
    {
        sum2 = 0.4463 * sum1; //用电量在150千瓦及以下部分按每千瓦时 0.4463元计算
    }   
    else 
    {
        if (sum1 <= 400)
        {
            sum2 = 0.4663 * sum1;//用电量在151∼400 千瓦时的部分按每千瓦时0.4663元计算 
        }
        else
        {
            sum2 = 0.5663 * sum1;//用电量在401千瓦时及以上部分按每千瓦时0.5663元计算
        }
    }
    printf("%.1lf \n",sum2);
    return 0;
}

by WA_sir @ 2023-06-05 19:32:05

@A_little_Jerry 好好读题

by A_little_Jerry @ 2023-06-05 19:49:27

@WA_sir 感谢大佬，蒟蒻已更正 ;)

#include <bits/stdc++.h>
using namespace std;
int main()
{
    double s , m ;
    cin >> s;
    if (s <= 150)
    {
        m = s * 0.4463;
    }
    if (s > 150)
    {   
        if (s <= 400)
        {
            m = 150 * 0.4463 + ((s - 150) *0.4663);
        }
    }
    if (s > 400)
    {
        m = 150 * 0.4463 + 250 * 0.4663 + ((s - 400) * 0.5663);
    }
    printf("%.1lf \n",m);
    return 0;
}

by sy2023mdy @ 2023-07-09 15:55:57

SO，对没对？

by sy2023mdy @ 2023-07-09 15:56:56

我对C语言一窍不通