UVA - 10976 Fractions Again?!(水题)

水题:直接从k+1到2*k枚举即可

#include
#define ll long long
#define inf 0x3f3f3f3f
#define pb push_back
#define rep(i,a,b) for(int i=a;i
#define rep1(i,b,a) for(int i=b;i>=a;i--)
using namespace std;
const int N=1e5+100;
int arr[N];
int main()
{
    ios::sync_with_stdio(false);
    int k;
    while(cin>>k)
    {
        int j=k+1;
        int cnt=0;
        map<int,int>mp;
        while(j<=2*k)
        {
            int a=j*k;
            int b=j-k;
            if(a%b==0&&a/b>=j)
            {
                //cout<<"1/"<>" + 1/"<
                mp[j]=a/b;
                cnt++;
            }
            j++;
        }
        cout<for(int i=k+1;i<=2*k;i++)
        {
            if(mp[i])
                cout<<"1/"<" = 1/"<" + 1/"<return 0;
}