Submission #256862

#	Time	Username	Problem	Language	Result	Execution time	Memory
256862		dolijan	Trol (COCI19_trol)	C++14	50 / 50	1 ms	384 KiB

trol

#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 / 50