UVA 10976

分数表达式-------------计算1/k = 1/x + 1/y；

Sample Input

2
2
12

Sample Output

1/2=1/6+1/3
1/2=1/4+1/4

1/12=1/156+1/13
1/12=1/84+1/14
1/12=1/60+1/15
1/12=1/48+1/16
1/12=1/36+1/18
1/12=1/30+1/20
1/12=1/28+1/21
1/12=1/24+1/24

Code

：

# include<iostream>
# include<cstdio>
using namespace std;
int main()
{
    int n;
    cin>>n;
    int x,y,k;
    int cnt = 0;
    while(n--)
    {
        cin>>k;
        if(cnt!=0)
        {
            cout<<endl;
        }
        for(int y=k+1; y<=2*k; y++)//之所以为2×K是因为
以1/2 = 1/4+1/4；顶多循环到二倍即4
        {
            if((k*y)%(y-k)==0) {
                int x=(k*y)/(y-k);
                cout<<"1/"<<k<<"=1/"<<x<<"+1/"<<y<<endl;
            }
        }
        cnt++;
    }
    return 0;
}