Cantor的数表,注意一些题中数学的应用

#include<cstdio>
#include<cmath>
#include<iostream>
#include<algorithm>
#include<cstring>
#include<string>
#include<cctype>
#include<cassert>
#include<cmath>
#include<algorithm>
#include<cctype>
#include<map>
#include<vector>
#include<stack>
#include<queue>
#include<set>
#include<cstdlib>
using namespace std;
int main()
{
int n;
while(cin>>n)
{
int i;
for(i=1;i<=10000;i++)
if(i*(i+1)/2>=n)
break;
int a,b;
if(i%2==0)
{
a=n-(i-1)*i/2;
b=i-a+1;
}
else
{
b=n-(i-1)*i/2;
a=i-b+1;
}
cout<<a<<'/'<<b<<endl;
}
return 0;
}