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답안 #976062

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
976062 2024-05-06T06:55:45 Z vjudge1 Trol (COCI19_trol) C++17
50 / 50
 1 ms 348 KB 
#include <bits/stdc++.h>
#define int long long
#define f first
#define s second
#define pb push_back
#define endl '\n'
using namespace std;

int l,r;

void solve() {
	cin >> l >> r;
	l--;
	l = (45 * (l / 9)) + ((l % 9) * ((l % 9) + 1)) / 2;
	r = (45 * (r / 9)) + ((r % 9) * ((r % 9) + 1)) / 2;
	cout << r - l << endl;
}

int32_t main() {
	ios_base::sync_with_stdio(0); cin.tie(0);
	int tttt = 1;
	cin >> tttt;
	while (tttt--) solve();
}

Subtask #1
50.0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct