結果

問題 No.3157 Nabeatsu
ユーザー 👑 binap
提出日時 2025-05-23 19:21:30
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 28 ms / 2,000 ms
コード長 2,769 bytes
コンパイル時間 3,432 ms
コンパイル使用メモリ 253,420 KB
実行使用メモリ 7,848 KB
最終ジャッジ日時 2025-05-23 19:21:42
合計ジャッジ時間 5,827 ms
ジャッジサーバーID
(参考情報)
judge4 / judge5
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 45
権限があれば一括ダウンロードができます
コンパイルメッセージ
main.cpp: In lambda function:
main.cpp:60:9: warning: control reaches end of non-void function [-Wreturn-type]
   60 |         };
      |         ^

ソースコード

diff #

#include<bits/stdc++.h>
#include<atcoder/all>
#define rep(i,n) for(int i=0;i<n;i++)
using namespace std;
using namespace atcoder;
typedef long long ll;
typedef pair<int, int> P;

template <int m> ostream& operator<<(ostream& os, const static_modint<m>& a) {os << a.val(); return os;}
template <int m> ostream& operator<<(ostream& os, const dynamic_modint<m>& a) {os << a.val(); return os;}
template <int m> istream& operator>>(istream& is, static_modint<m>& a) {long long x; is >> x; a = x; return is;}
template <int m> istream& operator>>(istream& is, dynamic_modint<m>& a) {long long x; is >> x; a = x; return is;}
template<typename T> istream& operator>>(istream& is, vector<T>& v){int n = v.size(); assert(n > 0); rep(i, n) is >> v[i]; return is;}
template<typename U, typename T> ostream& operator<<(ostream& os, const pair<U, T>& p){os << p.first << ' ' << p.second; return os;}
template<typename T> ostream& operator<<(ostream& os, const vector<T>& v){int n = v.size(); rep(i, n) os << v[i] << (i == n - 1 ? "\n" : " "); return os;}
template<typename T> ostream& operator<<(ostream& os, const vector<vector<T>>& v){int n = v.size(); rep(i, n) os << v[i] << (i == n - 1 ? "\n" : ""); return os;}
template<typename T> ostream& operator<<(ostream& os, const set<T>& se){for(T x : se) os << x << " "; os << "\n"; return os;}
template<typename T> ostream& operator<<(ostream& os, const unordered_set<T>& se){for(T x : se) os << x << " "; os << "\n"; return os;}
template<typename S, auto op, auto e> ostream& operator<<(ostream& os, const atcoder::segtree<S, op, e>& seg){int n = seg.max_right(0, [](S){return true;}); rep(i, n) os << seg.get(i) << (i == n - 1 ? "\n" : " "); return os;}
template<typename S, auto op, auto e, typename F, auto mapping, auto composition, auto id> ostream& operator<<(ostream& os, const atcoder::lazy_segtree<S, op, e, F, mapping, composition, id>& seg){int n = seg.max_right(0, [](S){return true;}); rep(i, n) os << seg.get(i) << (i == n - 1 ? "\n" : " "); return os;}

template<typename T> void chmin(T& a, T b){a = min(a, b);}
template<typename T> void chmax(T& a, T b){a = max(a, b);}

int main(){
	string s;
	cin >> s;
	auto is_nabeatsu = [&](string s){
		int n = s.size();
		rep(i, n){
			if(s[i] == '3') return true;
		}
		int cnt = 0;
		rep(i, n){
			cnt += s[i] - '0';
		}
		if(cnt % 3 == 0) return true;
		return false;
	};
	
	auto decrement_nabeatsu = [&](string s){
		int n = s.size();
		rep(i, n){
			if(s[i] == '3'){
				s[i] = '2';
				for(int j = i + 1; j < n; j++){
					s[j] = '9';
				}
				return s;
			}
		}
		for(int i = n - 1; i > 0; i--){
			if(s[i] == '0') s[i] = '9';
			else{
				s[i] = s[i] - 1;
				return s;
			}
		}
		
	};
	
	while(is_nabeatsu(s)){
		s = decrement_nabeatsu(s);
	}
	cout << s;
	return 0;
}
0