제출 #259031

#제출 시각아이디문제언어결과실행 시간메모리
259031lani1akeaTrol (COCI19_trol)C++17
30 / 50
1091 ms384 KiB
#include <bits/stdc++.h> #define F first #define S second #define ll long long #define pb push_back #define endl '\n' using namespace std; const int MOD = 1e9 + 7; const int N = 510; string e(ll x) { string s; while(x) { s += char('0' + x % 10); x /= 10; } return s; } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); int T; cin >> T; while(T--) { ll a, b; cin >> a >> b; ll sum = 0; for (ll i = a; i <= b; ++i) { ll x = sum; string s = e(i); for (char c: s) { sum += (c - '0'); } while (sum > x + 9) { s = e(sum - x); sum = x; for (char c: s) { sum += (c - '0'); } } } cout << sum << endl; } }
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