#include<bits/stdc++.h>
#define ll long long
using namespace std;
int main(){
ll q; cin>>q;
for(ll i=1; i<=q; i++){
ll L,R;
cin>>L>>R;
ll jarak=(R-L+1);
ll ans=(jarak/9)*45;
ll sisa=jarak%9;
ll start=L%9;
if(start==0){
start=9;
}
while(sisa--){
ans+=start;
start++;
}
cout<<ans<<endl;
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
4 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
5 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |