oj.uz

답안 #974843

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
974843 2024-05-04T01:00:25 Z vjudge1 Trol (COCI19_trol) C++
50 / 50
 1 ms 348 KB 
#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
50.0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct