제출 #976719

#제출 시각아이디문제언어결과실행 시간메모리
976719vjudge1Trol (COCI19_trol)C++17
10 / 50
1 ms348 KiB
#include <bits/stdc++.h> using namespace std; #define debug cout << "here\n"; int main() { int q; cin >> q; while(q--){ long long ans = 0; int l,r; cin >> l >> r; while(l%9 != 1 && l <= r) { if(l%9 == 0) { ans += 9; }else ans += l%9; l++; } while(r%9 != 0 && r > l) { ans += r%9; r--; } ans += 45 * (r-l+1)/9; cout << ans << '\n'; } return 0; }
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