제출 #1253004

#제출 시각아이디문제언어결과실행 시간메모리
1253004fahriegegokaydinTrol (COCI19_trol)C++20
50 / 50
0 ms328 KiB
#include<bits/stdc++.h>
#define ll long long int 
using namespace std;
int main()
{
    int Q;
    cin >>Q;
    while(Q--){
        ll l,r,d;
        cin>>l>>r;
        d=(r-l+1)/9;
        l+=d*9;
        d*=45;
        for(;l<=r;l++){
            if(l%9==0)  d+=9;
            else        d+=l%9;
        }
        cout<<d<<"\n";
        
    }
    
}
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