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답안 #974559

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
974559 2024-05-03T13:07:09 Z vjudge1 Trol (COCI19_trol) C++17
50 / 50
 0 ms 348 KB 
#include <bits/stdc++.h>
using namespace std;

unsigned long long x, y, xi, yi;
int a[11], n;

int main(){
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	cin >> n;
	for (int oi = 0; oi < n; oi++){
		cin >> x >> y;
		for (int i = 1; i < 10; i++){
			a[i] = a[i-1]+i;
		}
		x--;
		xi = (x/9) * 45 + a[x%9];
		yi = (y/9) * 45 + a[y%9];
		cout << yi - xi << "\n";
	}
}

Subtask #1
50.0 / 50.0

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