제출 #976646

#제출 시각아이디문제언어결과실행 시간메모리
976646vjudge1Trol (COCI19_trol)C++17
30 / 50
1067 ms348 KiB
#include<bits/stdc++.h> #define ll long long using namespace std; int main(){ ll q; cin>>q; for(ll i=1; i<=q; i++){ ll L,R; cin>>L>>R; ll ans=0; for(ll i=L; i<=R; i++){ if(i%9==0){ ans+=9; }else{ ans+=i%9; } } cout<<ans<<endl; } }
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