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답안 #975179

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
975179 2024-05-04T14:25:48 Z vjudge1 Trol (COCI19_trol) C++17
50 / 50
 1 ms 348 KB 
#include <bits/stdc++.h>
typedef long double ld;
#define int long long
#define TC int t; cin >> t; for(int _=1; _<=t; _++)
#define pii pair<int, int>
#define pb push_back
#define ffl fflush(stdout)
using namespace std;

signed main(){
   ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
   int q; cin >> q;
   while(q--){
      int l, r; cin >> l >> r; l--;
      int p = r%9;
      int q = l%9;
      int all = ((45)*(r/9)) + (p*(p+1)/2);
      int left = ((45)*(l/9)) + (q*(q+1)/2);
      cout << all-left << '\n';
   }
}

Subtask #1
50.0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 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 1 ms 348 KB Output is correct