Submission #974843

#	Time	Username	Problem	Language	Result	Execution time	Memory
974843		vjudge1	Trol (COCI19_trol)	C++98	50 / 50	1 ms	348 KiB

trol

#include <bits/stdc++.h>
using namespace std;
long long f(long long l,long long r){
    long long ret=0;
    long long awal=l;
    for (long long i = l; i<=r; i++)
    {
        ret+=i%9;
        awal=i;
        if(i%9==0){
            ret+=9;
            break;
        }
    }
    long long akhir=awal;
    for (long long i = r; i%9!=0 && i>awal; i--)
    {
        ret+=i%9;
        akhir=i;
    }
    if(r%9==0 ){
        ret+=((r-awal)/9)*45;
    }else{
        ret+=((akhir-awal)/9)*45;
    }
    return ret;
}
int main(){
    int q;
    cin>>q;
    while ( q--)
    {
        long long l,r;
        cin>>l>>r;
        cout<<f(l,r)<<endl;
    }
    
}

• Subtask 1: 50 / 50