Submission #814411

#	Time	Username	Problem	Language	Result	Execution time	Memory
814411		Tunglam07	Trol (COCI19_trol)	C++17	50 / 50	1 ms	324 KiB

trol

#include <bits/stdc++.h>
using namespace std;
 
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
    long long q;
    cin >> q;
    while(q--)
	{
        long long left,right,ans=0;
        cin >> left >> right;
        if((right-left+1)%9==0)
		{
            ans=(right-left+1)*5;
            cout << ans << endl;
        }
        else
		{
            ans=(right-left+1)/9*45;
            long long t=(right-left+1)%9;
            while(t--)
			{
                if(left%9==0)
                {
                    ans+=9;
				}
                else
                {
                    ans+=left%9;
				}
                left++;
            }
            cout << ans << endl;
        }
    }
}

• Subtask 1: 50 / 50