Submission #975406

#TimeUsernameProblemLanguageResultExecution timeMemory
975406vjudge1Trol (COCI19_trol)C++17
0 / 50
1076 ms604 KiB
#include <bits/stdc++.h>

using namespace std;

#define int long long
#define Foxfur ios_base::sync_with_stdio(0);cin.tie(NULL);

int32_t main()
{
Foxfur

    int q; cin >> q;

    while(q--)
    {
        int l,r; cin >> l >> r;

        int ans = 0;

        for(int i=l; i<=r; i++)
        {
            int x=i;

            ans+=x%9;
        }
        cout << ans << endl;;
    }
}
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