Submission #975114

#TimeUsernameProblemLanguageResultExecution timeMemory
975114vjudge1Trol (COCI19_trol)C++17
10 / 50
1014 ms348 KiB
#include <bits/stdc++.h>
#define ll unsigned 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++){
            if(i % 9 != 0) ans += (i % 9); 
            else ans += i;
            //ans += i;
        }

        cout << ans << endl;
    }
}
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