Submission #971254

#	Time	Username	Problem	Language	Result	Execution time	Memory
971254		vjudge1	Trol (COCI19_trol)	C++98	0 / 50	1 ms	348 KiB

trol

#include <bits/stdc++.h>
using namespace std;
int sumDigits(long long num) {
  long long sum = 0;
  while (num > 0) {
    sum += num % 10;
    num /= 10;
  }
  if(sum>9){
    return sumDigits(sum);
  }else{
    return sum;
  }
}
int main(){
    int q;
    cin>>q;
    while (q--)
    {
        long long l,r;
        cin>>l>>r;
        long long awal=sumDigits(l);
        long long akhir=sumDigits(r);
        long long yang_akan_dikurangi=(((r+(9-(r%9)))-(l-(l%9)))/9)*45;
        cout<<yang_akan_dikurangi-(((awal-1)*(awal))/2)-((9-akhir)*(10+akhir)/2)<<endl;
    }
    
}

• Subtask 1: 0 / 50