제출 #976249

#제출 시각아이디문제언어결과실행 시간메모리
976249suhu88Trol (COCI19_trol)C++14
20 / 50
1095 ms600 KiB
#include<bits/stdc++.h> #define suhu ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0); #define fi first #define se second #define pb push_back using namespace std; typedef long long ll; const ll MAXN=2505; const ll mod=1e9+7; ll n; int main(){ suhu cin>>n; while(n--){ ll ans=0; ll l,r;cin>>l>>r; for(int i=l;i<=r;i++){ if(i%9==0){ ans+=9; } else ans+=i%9; } cout<<ans<<"\n"; } return 0; }
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