Submission #971284

#	Time	Username	Problem	Language	Result	Execution time	Memory
971284		vjudge1	Trol (COCI19_trol)	C++17	50 / 50	1 ms	348 KiB

trol

#include<bits/stdc++.h>
using namespace std;
#define int long long

signed main(){
    int q;
    cin>>q;
    while(q--){
        int l,r;
        cin>>l>>r;
        int kali=(r-l+1)/9;
        int sisa=(r-l+1)-(kali*9);

        int mulai=l%9;
        if(mulai==0){
            mulai=9;
        }
        int ans=kali*45;
        for(int k=1;k<=sisa;k++){
            ans+=mulai;
            mulai++;
            if(mulai>9){
                mulai=1;
            }
        }
        cout<<ans<<'\n';
    }
}

• Subtask 1: 50 / 50