Submission #833163

#	Time	Username	Problem	Language	Result	Execution time	Memory
833163		maomao90	Financial Report (JOI21_financial)	C++17	100 / 100	1123 ms	27540 KiB

Main

// Hallelujah, praise the one who set me free
// Hallelujah, death has lost its grip on me
// You have broken every chain, There's salvation in your name
// Jesus Christ, my living hope
#include <bits/stdc++.h> 
using namespace std;

#define REP(i, s, e) for (int i = (s); i < (e); i++)
#define RREP(i, s, e) for (int i = (s); i >= (e); i--)
template <class T>
inline bool mnto(T& a, T b) {return a > b ? a = b, 1 : 0;}
template <class T>
inline bool mxto(T& a, T b) {return a < b ? a = b, 1: 0;}

typedef unsigned long long ull;
typedef long long ll;
typedef long double ld;
#define FI first
#define SE second
typedef pair<int, int> ii;
typedef pair<ll, ll> pll;
typedef tuple<int, int, int> iii;
#define ALL(_a) _a.begin(), _a.end()
#define SZ(_a) (int) _a.size()
#define pb push_back
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<ii> vii;
typedef vector<iii> viii;

#ifndef DEBUG
#define cerr if (0) cerr
#endif

const int INF = 1000000005;
const ll LINF = 1000000000000000005ll;
const int MAXN = 300005;

int n, d;
int a[MAXN];
vii dct;
int ans;

#define MLR int mid = lo + hi >> 1, lc = u << 1, rc = u << 1 ^ 1
int ptr;
ii mn[MAXN * 4];
int lz[MAXN * 4], onc[MAXN * 4];
void propo(int u, int lo, int hi) {
    if (lz[u] == -1) {
        return;
    }
    MLR;
    mn[lc] = {onc[lc] == 0 ? INF : lz[u], lo};
    mn[rc] = {onc[rc] == 0 ? INF : lz[u], mid + 1};
    lz[lc] = lz[u];
    lz[rc] = lz[u];
    lz[u] = -1;
}
void init(int u = 1, int lo = 0, int hi = ptr) {
    lz[u] = -1;
    mn[u] = {INF, lo};
    if (lo != hi) {
        MLR;
        init(lc, lo, mid);
        init(rc, mid + 1, hi);
    }
}
void updt(int s, int e, int x, int u = 1, int lo = 0, int hi = ptr) {
    if (lo >= s && hi <= e) {
        mn[u] = {onc[u] == 0 ? INF : x, lo};
        lz[u] = x;
        return;
    }
    propo(u, lo, hi);
    MLR;
    if (s <= mid) {
        updt(s, e, x, lc, lo, mid);
    }
    if (e > mid) {
        updt(s, e, x, rc, mid + 1, hi);
    }
    mn[u] = min(mn[lc], mn[rc]);
}
void togglet(int p, int x, int u = 1, int lo = 0, int hi = ptr) {
    if (lo == hi) {
        mn[u] = {x, lo};
        onc[u] = x != INF;
        return;
    }
    propo(u, lo, hi);
    MLR;
    if (p <= mid) {
        togglet(p, x, lc, lo, mid);
    } else {
        togglet(p, x, rc, mid + 1, hi);
    }
    mn[u] = min(mn[lc], mn[rc]);
    onc[u] = onc[lc] + onc[rc];
}
int mx[MAXN * 4];
void updv(int p, int x, int u = 1, int lo = 0, int hi = ptr) {
    if (lo == hi) {
        mx[u] = x;
        return;
    }
    MLR;
    if (p <= mid) {
        updv(p, x, lc, lo, mid);
    } else {
        updv(p, x, rc, mid + 1, hi);
    }
    mx[u] = max(mx[lc], mx[rc]);
}
int qmx(int s, int e, int u = 1, int lo = 0, int hi = ptr) {
    if (lo >= s && hi <= e) {
        return mx[u];
    }
    int res = 0;
    MLR;
    if (s <= mid) {
        mxto(res, qmx(s, e, lc, lo, mid));
    }
    if (e > mid) {
        mxto(res, qmx(s, e, rc, mid + 1, hi));
    }
    return res;
}

int main() {
#ifndef DEBUG
    ios::sync_with_stdio(0), cin.tie(0);
#endif
    cin >> n >> d;
    REP (i, 1, n + 1) {
        cin >> a[i];
        dct.pb({a[i], i});
    }
    sort(ALL(dct));
    int prv = -1; ptr = 0;
    for (auto [x, i] : dct) {
        if (x != prv) {
            ptr++;
            prv = x;
        }
        a[i] = ptr;
    }
    init();
    REP (i, 1, n + 1) {
        cerr << i << ' ' << a[i] << '\n';
        while (i - mn[1].FI > d) {
            int id = mn[1].SE;
            updv(id, 0);
            togglet(id, INF);
        }
        updt(a[i], ptr, i);
        int v = qmx(0, a[i] - 1) + 1;
        int pv = qmx(a[i], a[i]);
        cerr << ' ' << pv << ' ' << v << '\n';
        updv(a[i], max(pv, v));
        togglet(a[i], i);
        mxto(ans, mx[1]);
    }
    cout << ans << '\n';
    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'void propo(int, int, int)':
Main.cpp:45:26: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   45 | #define MLR int mid = lo + hi >> 1, lc = u << 1, rc = u << 1 ^ 1
      |                       ~~~^~~~
Main.cpp:53:5: note: in expansion of macro 'MLR'
   53 |     MLR;
      |     ^~~
Main.cpp: In function 'void init(int, int, int)':
Main.cpp:45:26: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   45 | #define MLR int mid = lo + hi >> 1, lc = u << 1, rc = u << 1 ^ 1
      |                       ~~~^~~~
Main.cpp:64:9: note: in expansion of macro 'MLR'
   64 |         MLR;
      |         ^~~
Main.cpp: In function 'void updt(int, int, int, int, int, int)':
Main.cpp:45:26: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   45 | #define MLR int mid = lo + hi >> 1, lc = u << 1, rc = u << 1 ^ 1
      |                       ~~~^~~~
Main.cpp:76:5: note: in expansion of macro 'MLR'
   76 |     MLR;
      |     ^~~
Main.cpp: In function 'void togglet(int, int, int, int, int)':
Main.cpp:45:26: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   45 | #define MLR int mid = lo + hi >> 1, lc = u << 1, rc = u << 1 ^ 1
      |                       ~~~^~~~
Main.cpp:92:5: note: in expansion of macro 'MLR'
   92 |     MLR;
      |     ^~~
Main.cpp: In function 'void updv(int, int, int, int, int)':
Main.cpp:45:26: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   45 | #define MLR int mid = lo + hi >> 1, lc = u << 1, rc = u << 1 ^ 1
      |                       ~~~^~~~
Main.cpp:107:5: note: in expansion of macro 'MLR'
  107 |     MLR;
      |     ^~~
Main.cpp: In function 'int qmx(int, int, int, int, int)':
Main.cpp:45:26: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   45 | #define MLR int mid = lo + hi >> 1, lc = u << 1, rc = u << 1 ^ 1
      |                       ~~~^~~~
Main.cpp:120:5: note: in expansion of macro 'MLR'
  120 |     MLR;
      |     ^~~

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 20 / 20
• Subtask 4: 12 / 12
• Subtask 5: 5 / 5
• Subtask 6: 35 / 35