Submission #976645

#	Time	Username	Problem	Language	Result	Execution time	Memory
976645		vjudge1	Trol (COCI19_trol)	C++17	50 / 50	1 ms	348 KiB

trol

#include <bits/stdc++.h>

using namespace std;
using ll = long long;

ll hitung (ll x) {
    ll temp = 0;
    while (x>0) {
        temp+=x%10;
        x/=10;
    }
    if (temp>=10) {
        return hitung(temp);
    }
    return temp;
}

int main() {
    ll q;cin >> q;
    while (q--) {
        ll l, r; cin >> l >> r;
        ll ans = 0;
        ll jar = r-l+1;
        ll pol = jar/9;
        jar%=9;
        ans+=pol*45;
        while (jar--) {
            ans+=hitung(l);
            l++;
        }
        cout << ans << endl;
    }
    return 0;
}

• Subtask 1: 50 / 50