代码如下:
#include<iostream>
#include<cstdio>
#include<cstring>
using namespace std;
int main()
{
int G;
while(cin>>G)
{
if(!G)
break;
int k=G*2;
int n1=(k-2)/7;
int n2=(k+2)/7;
double ans;
int t=k/7;
if(k-7*n1-2<k-7*n2+2)
{
if(k-7*t<k-7*n1-2)
{
printf("%.1lf ",(k-7*t)*0.5);
printf("%.1lf %.1lf %.1lf\n",t*0.5,t*0.5,t*0.5);
continue;
}
printf("%.1lf ",(k-7*n1-2)*0.5);
printf("%.1lf %.1lf %.1lf\n",(n1+1)*0.5,(n1+1)*0.5,n1*0.5);
}
else
{
if(k-7*t<k-7*n2+2)
{
printf("%.1lf ",(k-7*t)*0.5);
printf("%.1lf %.1lf %.1lf\n",t*0.5,t*0.5,t*0.5);
continue;
}
printf("%.1lf ",(k-7*n2+2)*0.5);
printf("%.1lf %.1lf %.1lf\n",(n2-1)*0.5,(n2-1)*0.5,n2*0.5);
}
}
return 0;
}
本文展示了一个使用C++编写的程序示例,该程序读取输入并进行特定的数学运算,通过不同的条件判断来输出相应的计算结果。涉及到变量定义、循环结构、条件判断等基本编程概念。
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