Submission #975179

#	Time	Username	Problem	Language	Result	Execution time	Memory
975179		vjudge1	Trol (COCI19_trol)	C++17	50 / 50	1 ms	348 KiB

trol

#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 / 50