Submission #1007330

#TimeUsernameProblemLanguageResultExecution timeMemory
1007330vjudge1Trol (COCI19_trol)C++17
30 / 50
1099 ms404 KiB
#include <bits/stdc++.h>
#define ll long long
using namespace std;

int main() {
    int q;
    cin >> q;
    while (q--) {
        ll l, r;
        cin >> l >> r;
        ll ans = 0;
        for (ll i = l; i <= r; i++) {
            ll num = i;
            while (num >= 10) {
                ll temp = 0;
                while (num > 0) {
                    temp += num % 10;
                    num /= 10;
                }
                num = temp;
            }
            ans += num;
        }
        cout << ans << '\n';
    }
    return 0;
}
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