Submission

Score: 30

User: boygunner

Problemset: ผลรวมตัวเลข

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-07 19:15:46

#include <iostream>
using namespace std;
int serie(int n,int m,int div){
	int a1,sum=0;
	for(int i=n;i<=m;i++){
		if(i%div==0) {
			a1=i;
			break;
		}
	}
	for(int i=a1;i<=m;i=i+div)
		if(i%div==0) sum=sum+i;
	
	return sum;
}
int main(){
	int n,m;
	cin>>n>>m;
	cout<<serie(n,m,2)+serie(n,m,3)-serie(n,m,6);
}