Submission #978478

#	Time	Username	Problem	Language	Result	Execution time	Memory
978478		vjudge1	Trol (COCI19_trol)	C++17	0 / 50	1086 ms	604 KiB

trol

#include<bits/stdc++.h>
#define ll long long
#define endl '\n'

using namespace std;

int main(){
    int q; cin>>q;
    while(q--){
        string l, r; cin>>l>>r;
        ll m = stoi(l), n = stoi(r), sum=0;
        ll total=n-m+1, st=m%9-1;
        while(total--){
            st++;
            sum+=st;
        }
        cout<<sum<<endl;
    }

    return 0;
}

• Subtask 1: 0 / 50