题目:https://pintia.cn/problem-sets/994805260223102976/problems/1038429191091781632
#include<stdio.h>
int main()
{
int n;
scanf("%d",&n);
int result[n];
int count=0;
for(int i=1;i<=n;i++)
{
int a;
a=i/2+i/3+i/5;
int tag=0;
for(int j=1;j<i;j++)
{
if(result[j]==a)
{
tag++;
}
}
if(tag==0)
{
count++;
result[i]=a;
}
}
printf("%d",count);
return 0;
}