#include<bits/stdc++.h>
using namespace std;
int main()
{
int t;
cin>>t;
long long int a,b;
while(t>0)
{
long long int sum=0;
cin>>a>>b;
long long int dif=b-a;
sum=(dif/9)*45;
for(long long int j=b; j>=(b-dif%9); j--)
{
if(j%9==0)
{
sum=sum+9;
}
sum=sum+(j%9);
}
cout<<sum<<endl;
t--;
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
380 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
3 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
256 KB |
Output is correct |
5 |
Correct |
3 ms |
256 KB |
Output is correct |