結果

問題 No.1331 Moving Penguin
ユーザー kyoprouno
提出日時 2021-01-09 15:48:03
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 245 ms / 1,500 ms
コード長 6,275 bytes
コンパイル時間 2,305 ms
コンパイル使用メモリ 181,320 KB
実行使用メモリ 5,760 KB
最終ジャッジ日時 2024-11-07 15:03:57
合計ジャッジ時間 11,571 ms
ジャッジサーバーID
(参考情報)
judge2 / judge3
このコードへのチャレンジ
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ファイルパターン 結果
other AC * 49
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

#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#define _GLIBCXX_DEBUG
#endif
#pragma region Macros
#define FOR(i, l, r) for(int i = (l) ;i < (r) ;i++)
#define REP(i, n) FOR(i, 0, n)
#define REPS(i, n) FOR(i, 1, n+1)
#define RFOR(i, l, r) for(int i = (l) ; i >= (r) ; i--)
#define RREP(i, n) RFOR(i, n - 1, 0)
#define RREPS(i, n) RFOR(i, n , 1)
#define SZ(x) ((int)(x).size())
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
template <class T = int>
using V = vector<T>;
template <class T = int>
using VV = V<V<T>>;
#define ll long long
using ld = long double;
#define pll pair<ll,ll>
#define pii pair<int,int>
#define pq priority_queue
#define pb push_back
#define eb emplace_back
#define fi first
#define se second
#define endl '\n'
#define ios ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
#define lb(c,x) distance(c.begin(),lower_bound(all(c),x))
#define ub(c,x) distance(c.begin(),upper_bound(all(c),x))
#define VEC(type, name, size) \
V<type> name(size); \
INPUT(name)
#define VVEC(type, name, h, w) \
VV<type> name(h, V<type>(w)); \
INPUT(name)
#define INT(...) \
int __VA_ARGS__; \
INPUT(__VA_ARGS__)
#define LL(...) \
ll __VA_ARGS__; \
INPUT(__VA_ARGS__)
#define STR(...) \
string __VA_ARGS__; \
INPUT(__VA_ARGS__)
#define CHAR(...) \
char __VA_ARGS__; \
INPUT(__VA_ARGS__)
#define DOUBLE(...) \
DOUBLE __VA_ARGS__; \
INPUT(__VA_ARGS__)
#define LD(...) \
LD __VA_ARGS__; \
INPUT(__VA_ARGS__)
void scan(int &a) { cin >> a;}
void scan(long long &a) { cin >> a;}
void scan(char &a) { cin >> a;}
void scan(double &a) { cin >> a;}
void scan(long double &a) { cin >> a;}
void scan(char a[]) { scanf("%s", a);}
void scan(string &a) { cin >> a;}
template <class T>
void scan(V<T> &);
template <class T, class L>
void scan(pair<T, L> &);
template <class T>
void scan(V<T> &a){
for(auto &i : a) scan(i);
}
template <class T, class L>
void scan(pair<T, L> &p){
scan(p.first);
scan(p.second);
}
template <class T>
void scan(T &a) { cin >> a;}
void INPUT() {}
template <class Head, class... Tail>
void INPUT(Head &head, Tail &... tail){
scan(head);
INPUT(tail...);
}
template <class T>
inline void print(T x) { cout << x << '\n'; }
template <typename T1, typename T2>
istream &operator>>(istream &is, pair<T1, T2> &p) {
is >> p.first >> p.second;
return is;
}
template <typename T1, typename T2>
ostream &operator<<(ostream &os, const pair<T1, T2> &p) {
os << p.first << " " << p.second;
return os;
}
template <typename T>
istream &operator>>(istream &is, vector<T> &v) {
for(T &in : v) is >> in;
return is;
}
template <class T>
ostream &operator<<(ostream &os, const V<T> &v) {
REP(i, SZ(v)) {
if(i) os << " ";
os << v[i];
}
return os;
}
//debug
template <typename T>
void view(const V<T> &v) {
cerr << "{ ";
for(const auto &e : v) {
cerr << e << ", ";
}
cerr << "\b\b }";
}
template <typename T>
void view(const VV<T> &vv) {
cerr << "{\n";
for(const auto &v : vv) {
cerr << "\t";
view(v);
cerr << "\n";
}
cerr << "}";
}
template <typename T, typename U>
void view(const V<pair<T, U>> &v) {
cerr << "{\n";
for(const auto &c : v) cerr << "\t(" << c.first << ", " << c.second << ")\n";
cerr << "}";
}
template <typename T, typename U>
void view(const map<T, U> &m) {
cerr << "{\n";
for(auto &t : m) cerr << "\t[" << t.first << "] : " << t.second << "\n";
cerr << "}";
}
template <typename T, typename U>
void view(const pair<T, U> &p) { cerr << "(" << p.first << ", " << p.second << ")"; }
template <typename T>
void view(const set<T> &s) {
cerr << "{ ";
for(auto &t : s) {
view(t);
cerr << ", ";
}
cerr << "\b\b }";
}
template <typename T>
void view(T e) { cerr << e; }
#ifdef LOCAL
void debug_out() {}
template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
view(H);
cerr << ", ";
debug_out(T...);
}
#define debug(...) \
do { \
cerr << __LINE__ << " [" << #__VA_ARGS__ << "] : ["; \
debug_out(__VA_ARGS__); \
cerr << "\b\b]\n"; \
} while(0)
#else
#define debug(...) (void(0))
#endif
template <class T>
V<T> press(V<T> &x) {
V<T> res = x;
sort(all(res));
res.erase(unique(all(res)), res.end());
REP(i, SZ(x)) {
x[i] = lower_bound(all(res), x[i]) - res.begin();
}
return res;
}
template <class T>
inline bool chmin(T &a, T b) {
if(a > b) {
a = b;
return true;
}
return false;
}
template <class T>
inline bool chmax(T &a, T b) {
if(a < b) {
a = b;
return true;
}
return false;
}
inline void Yes(bool b = true) { cout << (b ? "Yes" : "No") << '\n'; }
inline void YES(bool b = true) { cout << (b ? "YES" : "NO") << '\n'; }
inline void err(bool b = true) {
if(b) {
cout << -1 << '\n';
exit(0);
}
}
template <class T>
inline void fin(bool b = true, T e = 0) {
if(b) {
cout << e << '\n';
exit(0);
}
}
template <class T>
T divup(T x, T y) { return (x + (y - 1)) / y; }
template <typename T>
T pow(T a, long long n, T e = 1) {
T ret = e;
while(n) {
if(n & 1) ret *= a;
a *= a;
n >>= 1;
}
return ret;
}
struct iofast {
iofast() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
cout << fixed << setprecision(15);
}
} iofast_;
const int inf = 1e9;
const ll INF = 1e18;
#pragma endregion
inline int topbit(unsigned long long x){
return x?63-__builtin_clzll(x):-1;
}
inline int popcount(unsigned long long x){
return __builtin_popcountll(x);
}
inline int parity(unsigned long long x){//popcount%2
return __builtin_parity(x);
}
const ll mod=1e9+7;
int main(){
LL(N);
ll K=sqrt(N);
VEC(ll,A,N);
VV<ll> sum(K+1,V<ll>(K+1));
V<ll> dp(N);
dp[0]=1;
REP(i,N){
if(i && A[i-1]!=1) dp[i]+=dp[i-1];
dp[i]%=mod;
REP(j,K+1){
if(j==0) continue;
dp[i]+=sum[j][i%j];
dp[i]%=mod;
}
if(A[i]<=K){
sum[A[i]][i%A[i]]+=dp[i];
sum[A[i]][i%A[i]]%=mod;
}
else{
for(ll j=i+A[i];j<N;j+=A[i]){
dp[j]+=dp[i];
dp[j]%=mod;
}
}
}
cout << dp[N-1] << endl;
return 0;
}
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