Submission #1253441

#	Time	Username	Problem	Language	Result	Execution time	Memory
1253441		XXBabaProBerkay	Trol (COCI19_trol)	C++20	50 / 50	0 ms	328 KiB

trol

#include <bits/stdc++.h>
using namespace std;

#define F first
#define S second
#define MP make_pair
#define PB push_back

using ll = long long;
using ld = long double;
using pi = pair<int, int>;
using pll = pair<ll, ll>;

template<typename T>
using vec = vector<T>;

template<typename T, int N>
using arr = array<T, N>;

ll gcd(ll a, ll b) { return b == 0 ? a : gcd(b, a % b); }
ll lcm(ll a, ll b) { return a * b / gcd(a, b); }

const int MOD = 998244353;

void solve()
{
	ll l, r;
	cin >> l >> r;
	ll x = r - l + 1;
	ll ans = x / 9ll * 45ll;
	for (int i = 0; i < x % 9; i++)
		ans += ((l + i) % 9 == 0 ? 9 : (l + i) % 9);

	cout << ans << '\n';
}

int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);

	int t = 1;
	cin >> t;
	while (t--) solve();
}

• Subtask 1: 50 / 50