oj.uz

답안 #256862

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
256862 2020-08-03T10:18:05 Z dolijan Trol (COCI19_trol) C++14
50 / 50
 1 ms 384 KB 
#include <bits/stdc++.h>
typedef long long ll;
#define pb push_back;
using namespace std;
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	int q;
	cin>>q;
	while(q--)
	{
		ll l,r;
		cin>>l>>r;
		ll k=l;
		ll suma=0;
		while(k%9!=0 && k<=r)
		{
			suma+=(k%9);
			k++;
		}
		//cout<<suma<<endl;
		ll m=r;
		while(m>=k && m%9!=0)
		{
			suma+=(m%9);
			m--;
		}
		/*cout<<suma<<endl;
		cout<<m<<" "<<k<<endl;*/
		if(m%9==0) suma+=9;
		cout<<((m-k)/9)*45+suma<<endl;
	}	
	return 0;
}

Subtask #1
50.0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct