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Submission #814411

# Submission time Handle Problem Language Result Execution time Memory
814411 2023-08-08T07:22:18 Z Tunglam07 Trol (COCI19_trol) C++17
50 / 50
 1 ms 324 KB 
#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
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 1 ms 320 KB Output is correct