結果

問題 No.319 happy b1rthday 2 me
ユーザー kei
提出日時 2018-10-10 00:15:16
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 2 ms / 2,000 ms
コード長 3,487 bytes
コンパイル時間 1,650 ms
コンパイル使用メモリ 170,836 KB
実行使用メモリ 5,248 KB
最終ジャッジ日時 2024-10-12 17:07:40
合計ジャッジ時間 2,944 ms
ジャッジサーバーID
(参考情報)
judge3 / judge2
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 * 4
other AC * 29
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#include "bits/stdc++.h"
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int INF = 1e9;
const ll LINF = 1e18;
template<class S,class T> ostream& operator << (ostream& out,const pair<S,T>& o){ out << "(" << o.first << "," << o.second << ")"; return out; }
template<class T> ostream& operator << (ostream& out,const vector<T> V){ for(int i = 0; i < V.size(); i++){ out << V[i]; if(i!=V.size()-1) out << " "
    ;} return out; }
template<class T> ostream& operator << (ostream& out,const vector<vector<T> > Mat){ for(int i = 0; i < Mat.size(); i++) { if(i != 0) out << endl; out
    << Mat[i];} return out; }
template<class S,class T> ostream& operator << (ostream& out,const map<S,T> mp){ out << "{ "; for(auto it = mp.begin(); it != mp.end(); it++){ out <<
    it->first << ":" << it->second; if(mp.size()-1 != distance(mp.begin(),it)) out << ", "; } out << " }"; return out; }
/*
<url:https://yukicoder.me/problems/no/319>
============================================================
=================================================================
=============================================================
================================================================
*/
ll dp1[15][10][2][2]; // ,12,1,V
ll calc1(ll V){ // [1,V]12
ll res = 0;
string S = to_string(V);
fill(***dp1,***dp1+15*10*2*2,0);
dp1[0][0][0][0] = 1;
for(int i = 0; i < S.length();i++){
for(int j = 0; j < 10;j++){
for(int k = 0; k < 2;k++){
for(int l = 0; l < 2;l++){
if(dp1[i][j][k][l] == 0) continue;
int lim = l?9:S[i]-'0';
for(int d = 0; d <= lim; d++){
dp1[i+1][j+((k==1)&&(d==2))][d==1][l|(d<lim)] += dp1[i][j][k][l];
}
}
}
}
}
for(int j = 0; j < 10;j++){
for(int k = 0; k < 2;k++){
for(int l = 0; l < 2;l++){
res += dp1[S.length()][j][k][l]*j;
}
}
}
return res;
}
ll dp2[15][10][10][2]; // ,,,V
ll calc2(ll V){ // ooooo1 + 2oooooo
ll res = 0;
string S = to_string(V);
fill(***dp2,***dp2+15*10*10*2,0);
for(int i = 0; i < S.length();i++){
for(int j = 0; j < 10;j++){
for(int k = 0; k < 10;k++){
for(int l = 0; l < 2;l++){
int lim = l?9:S[i]-'0';
for(int d = 0; d <= lim; d++){
dp2[i+1][j][d][l||(d<lim)] += dp2[i][j][k][l];
}
}
}
}
if(i==0){
int lim = S[i]-'0';
for(int d = 0; d <= lim;d++) dp2[i+1][d][d][d<lim]++;
}else{
int lim = 9;
for(int d = 0; d <= lim;d++) dp2[i+1][d][d][1]++;
}
}
res += dp2[S.length()][2][2][0] + dp2[S.length()][2][2][1];
return res;
}
ll solve(){
ll res = 0;
ll A,B; cin >> A >> B;
string strA = to_string(A);
if(strA.front()=='2' && strA.back()=='2') res--;
res += calc1(B) - calc1(A-1);
res += calc2(B) - calc2(A-1);
return res;
}
int main(void) {
cin.tie(0); ios_base::sync_with_stdio(false);
cout << solve() << endl;
return 0;
}
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