#include<bits/stdc++.h>
using namespace std;
signed main(){
	int n,m;
	cin>>n>>m;
	for(int i=m;i<=n;i+=m)cout<<i<<endl;
}

类似于筛的第二重循环，但是变成了输出。

#include<bits/stdc++.h>
#define int long long
#define INF 0x3f3f3f
using namespace std;
int n,x;
signed main(){
	cin>>n>>x;
	for(int i=1;i*x<=n;i++)
		cout<<i*x<<"\n";
	return 0;
}

又秒了：

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int a,b;
	cin>>a>>b;
	for(int i=b;i<=a;i+=b)
	{
		cout<<i<<endl;
	}
	return 0;
}

C++ :

#include<bits/stdc++.h>
using namespace std;
int main(){
    int a,b;
    cin>>a>>b;
    for(int i=b;i<=a;i+=b){
    	cout<<i<<endl;
	}
    return 0;
}

Python :

# coding=utf-8
a=int(input())
b=int(input())
for i in range(1,a) :
    if (i*b)<=a :
        print(i*b)
    else :
        break;