結果

問題 No.833 かっこいい電車
ユーザー fumiphysfumiphys
提出日時 2019-05-24 22:14:33
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
WA  
実行時間 -
コード長 5,033 bytes
コンパイル時間 1,721 ms
コンパイル使用メモリ 179,788 KB
実行使用メモリ 10,624 KB
最終ジャッジ日時 2024-07-02 03:42:35
合計ジャッジ時間 4,773 ms
ジャッジサーバーID
(参考情報)
judge1 / judge2
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
sample AC * 2
other AC * 19 WA * 11
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ソースコード

diff #
プレゼンテーションモードにする

// includes
#include <bits/stdc++.h>
// macros
#define ll long long int
#define pb emplace_back
#define mk make_pair
#define pq priority_queue
#define FOR(i, a, b) for(int i=(a);i<(b);++i)
#define rep(i, n) FOR(i, 0, n)
#define rrep(i, n) for(int i=((int)(n)-1);i>=0;i--)
#define irep(itr, st) for(auto itr = (st).begin(); itr != (st).end(); ++itr)
#define irrep(itr, st) for(auto itr = (st).rbegin(); itr != (st).rend(); ++itr)
#define vrep(v, i) for(int i = 0; i < (v).size(); i++)
#define all(x) (x).begin(),(x).end()
#define sz(x) ((int)(x).size())
#define UNIQUE(v) v.erase(unique(v.begin(), v.end()), v.end())
#define FI first
#define SE second
#define dump(a, n) for(int i = 0; i < n; i++)cout << a[i] << "\n "[i + 1 != n];
#define dump2(a, n, m) for(int i = 0; i < n; i++)for(int j = 0; j < m; j++)cout << a[i][j] << "\n "[j + 1 != m];
#define bit(n) (1LL<<(n))
#define INT(n) int n; cin >> n;
#define LL(n) ll n; cin >> n;
#define DOUBLE(n) double n; cin >> n;
using namespace std;
// types
typedef pair<int, int> P;
typedef pair<ll, int> Pl;
typedef pair<ll, ll> Pll;
typedef pair<double, double> Pd;
typedef complex<double> cd;
// constants
const int inf = 1e9;
const ll linf = 1LL << 50;
const double EPS = 1e-10;
const int mod = 1e9 + 7;
const int dx[4] = {-1, 0, 1, 0};
const int dy[4] = {0, -1, 0, 1};
// solve
template <class T>bool chmax(T &a, const T &b){if(a < b){a = b; return 1;} return 0;}
template <class T>bool chmin(T &a, const T &b){if(a > b){a = b; return 1;} return 0;}
template <typename T> istream &operator>>(istream &is, vector<T> &vec){for(auto &v: vec)is >> v; return is;}
template <typename T> ostream &operator<<(ostream &os, const vector<T>& vec){for(int i = 0; i < vec.size(); i++){ os << vec[i]; if(i + 1 != vec.size
    ())os << " ";} return os;}
template <typename T> ostream &operator<<(ostream &os, const set<T>& st){for(auto itr = st.begin(); itr != st.end(); ++itr){ os << *itr; auto titr =
    itr; if(++titr != st.end())os << " ";} return os;}
template <typename T> ostream &operator<<(ostream &os, const unordered_set<T>& st){for(auto itr = st.begin(); itr != st.end(); ++itr){ os << *itr;
    auto titr = itr; if(++titr != st.end())os << " ";} return os;}
template <typename T> ostream &operator<<(ostream &os, const multiset<T>& st){for(auto itr = st.begin(); itr != st.end(); ++itr){ os << *itr; auto
    titr = itr; if(++titr != st.end())os << " ";} return os;}
template <typename T> ostream &operator<<(ostream &os, const unordered_multiset<T>& st){for(auto itr = st.begin(); itr != st.end(); ++itr){ os <<
    *itr; auto titr = itr; if(++titr != st.end())os << " ";} return os;}
template <typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &p){os << p.first << " " << p.second; return os;}
template <typename T1, typename T2> ostream &operator<<(ostream &os, const map<T1, T2> &mp){for(auto itr = mp.begin(); itr != mp.end(); ++itr){ os <<
    itr->first << ":" << itr->second; auto titr = itr; if(++titr != mp.end())os << " "; } return os;}
template <typename T1, typename T2> ostream &operator<<(ostream &os, const unordered_map<T1, T2> &mp){for(auto itr = mp.begin(); itr != mp.end();
    ++itr){ os << itr->first << ":" << itr->second; auto titr = itr; if(++titr != mp.end())os << " "; } return os;}
template<typename T>
struct BIT_{
int n;
vector<T> bit;
BIT_(int n_){
n = n_;
bit = vector<T>(n+1, 0);
}
void add(int a, T w){
for(int x = a; x < n; x |= (x + 1)){
bit[x] += w;
}
}
T sum(int a){
T res = 0;
for(int x = a; x >= 0; x = (x & (x + 1)) - 1){
res += bit[x];
}
return res;
}
};
typedef struct BIT_<int> BITI;
typedef struct BIT_<long long> BITL;
struct ran{
int l, r;
ll w;
ran(int l, int r, ll w): l(l), r(r), w(w){}
bool operator<(const ran& R) const{
return r < R.r;
}
};
int main(int argc, char const* argv[])
{
ios_base::sync_with_stdio(false);
cin.tie(0);
INT(n);
INT(q);
vector<ll> a(n);
cin >> a;
set<ran> st;
rep(i, n)st.insert(ran(i, i+1, a[i]));
BITI bt(n);
rep(i, n)bt.add(i, a[i]);
rep(i, q){
int c, x;
cin >> c >> x, x--;
if(c == 1){
auto itr = st.upper_bound(ran(-1, x, 0));
int l = (*itr).l;
ll w1 = (*itr).w;
if((*itr).r > x + 1)continue;
itr = st.erase(itr);
int r = (*itr).r;
ll w2 = (*itr).w;
itr = st.erase(itr);
st.insert(ran(l, r, w1+w2));
}else if(c == 2){
auto itr = st.upper_bound(ran(-1, x, 0));
if((*itr).r <= x + 1)continue;
int l = (*itr).l;
int r = (*itr).r;
itr = st.erase(itr);
st.insert(ran(l, x + 1, bt.sum(x) - bt.sum(l-1)));
st.insert(ran(x+1, r, bt.sum(r-1) - bt.sum(x)));
}else if(c == 3){
bt.add(x, 1);
auto itr = st.upper_bound(ran(-1, x, 0));
int l = (*itr).l;
int r = (*itr).r;
ll w = (*itr).w;
itr = st.erase(itr);
st.insert(ran(l, r, w + 1));
}else{
auto itr = st.upper_bound(ran(-1, x, 0));
cout << (*itr).w << endl;
}
}
return 0;
}
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