Submission #977257

#	Time	Username	Problem	Language	Result	Execution time	Memory
977257		vjudge1	Trol (COCI19_trol)	C++17	20 / 50	1092 ms	404 KiB

trol

#include<bits/stdc++.h>
using namespace std;
#define ll long long

int f(ll i){
	while(i>9){
	int cur=i;
	int sum=0;
	while(cur!=0){
	sum+=cur%10;
	cur/=10;	
		}
	i=sum;	
	}
	return i;
}
int main(){
	int n;
	cin>>n;
	while(n--){
		ll l,r;
		cin>>l>>r;
		ll ans=0;
		for(ll i=l;i<=r;i++){
		ans+=f(i);
		}
		cout<<ans<<endl;
	}
}

• Subtask 1: 20 / 50