题解

#include<stdio.h>
int main()
{
int n,k,s;
while(scanf("%d",&n) == 1)
{
k=0;
s=0;
while(s<n)
{
k++;
s+=k;
}
if(k%2==1)
printf("%d/%d\n",s-n+1,k+n-s);
else
printf("%d/%d\n",k+n-s,s-n+1);
}

return 0;

}