Submission #975439

#	Time	Username	Problem	Language	Result	Execution time	Memory
975439		vjudge1	Trol (COCI19_trol)	C++17	50 / 50	1 ms	348 KiB

trol

#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 l1 = ((l-1)/9)*45;
        int sisa = (l-1)%9;
        for(int i=1; i<=sisa; i++)
        {
            l1 += i;
        }

        int r1 = (r/9)*45;
        sisa = r%9;
        for(int i=1; i<=sisa; i++)
        {
            r1 += i;
        }

        cout << r1-l1 << endl;;
    }
}

• Subtask 1: 50 / 50