Submission #251504

#	Time	Username	Problem	Language	Result	Execution time	Memory
251504		MrRobot_28	Trol (COCI19_trol)	C++17	50 / 50	1 ms	384 KiB

trol

#include<bits/stdc++.h>
 
using namespace std;
#define int long long
signed main() {
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	int q;
	cin >> q;
	while(q--)
	{
		int l, r;
		cin >> l >> r;
		int sum = 0;
		sum += 45 * (r / 9);
		while(r % 9 != 0)
		{
			sum += r % 9;
			r--;
		}
		l--;
		sum -= 45 * (l / 9);
		while(l % 9 != 0)
		{
			sum -= l % 9;
			l--;
		}
		cout << sum << "\n";
	}
	return 0;
}

• Subtask 1: 50 / 50