제출 #977251

#제출 시각아이디문제언어결과실행 시간메모리
977251vjudge1Trol (COCI19_trol)C++17
30 / 50
1087 ms756 KiB
#include<bits/stdc++.h> using namespace std; #define ll long long int f(ll i){ if(i%9==0)return 9; else return i%9; } int main(){ int n; cin>>n; while(n--){ ll l,r; cin>>l>>r; ll ans=0; for(ll i=l;i<=r;i++){ ans+=f(i); } cout<<ans<<endl; } }
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