제출 #976638

#제출 시각아이디문제언어결과실행 시간메모리
976638vjudge1Trol (COCI19_trol)C++17
30 / 50
1092 ms428 KiB
#include <bits/stdc++.h> using namespace std; using ll = long long; int main() { ll q;cin >> q; while (q--) { ll l, r; cin >> l >> r; ll ans = 0; for (ll i=l;i<=r;i++) { ll x = i%9; if (x == 0) x+=9; ans+=x; } cout << ans << endl; } return 0; }
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