제출 #681127

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
681127		stevancv	Progression (NOI20_progression)	C++14	0 / 100	1081 ms	116448 KiB

Progression

#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define sp ' '
#define en '\n'
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
using namespace std;
const int N = 3e5 + 2;
const ll linf = 9e18;
struct Segtree {
    ll st[4 * N], lzys[4 * N], lzya[4 * N];
    void Reset1(int n) {
        for (int i = 1; i <= 4 * n; i++) {
            lzys[i] = linf;
            st[i] = lzya[i] = 0;
        }
    }
    void Propagate1(int node, int l, int r) {
        if (lzys[node] == linf && lzya[node] == 0) return;
        if (l < r) {
            if (lzys[node] != linf) {
                lzys[2 * node] = lzys[2 * node + 1] = lzys[node];
                lzya[2 * node] = lzya[2 * node + 1] = 0;
            }
            if (lzya[node] != 0) {
                if (lzys[2 * node] != linf) lzys[2 * node] += lzya[node];
                else lzya[2 * node] += lzya[node];
                if (lzys[2 * node + 1] != linf) lzys[2 * node + 1] += lzya[node];
                else lzya[2 * node + 1] += lzya[node];
            }
        }
        if (lzys[node] != linf) {st[node] = lzys[node]; lzys[node] = linf;}
        if (lzya[node] != 0) {st[node] += lzya[node]; lzya[node] = 0;}
    }
    void Set1(int node, int l, int r, int ql, int qr, ll y) {
        Propagate1(node, l, r);
        if (r < ql || qr < l || ql > qr) return;
        if (ql <= l && r <= qr) {
            lzys[node] = y;
            Propagate1(node, l, r);
            return;
        }
        int mid = l + r >> 1;
        Set1(2 * node, l, mid, ql, qr, y);
        Set1(2 * node + 1, mid + 1, r, ql, qr, y);
        st[node] = min(st[2 * node], st[2 * node + 1]);
    }
    void Add1(int node, int l, int r, int ql, int qr, ll y) {
        Propagate1(node, l, r);
        if (r < ql || qr < l || ql > qr) return;
        if (ql <= l && r <= qr) {
            lzya[node] = y;
            Propagate1(node, l, r);
            return;
        }
        int mid = l + r >> 1;
        Add1(2 * node, l, mid, ql, qr, y);
        Add1(2 * node + 1, mid + 1, r, ql, qr, y);
        st[node] = min(st[2 * node], st[2 * node + 1]);
    }
    ll Get1(int node, int l, int r, int x) {
        Propagate1(node, l, r);
        if (l == r) return st[node];
        int mid = l + r >> 1;
        if (x <= mid) return Get1(2 * node, l, mid, x);
        return Get1(2 * node + 1, mid + 1, r, x);
    }
}st1, st2;
struct Node {
    int ans, llen, rlen;
    ll lval, rval;
    Node() {
        ans = llen = rlen = 0;
        lval = rval = linf;
    }
    Node(int a, int b, int c, ll d, ll e) {
        ans = a; llen = b; rlen = c; lval = d; rval = e;
    }
}st[4 * N];
Node Merge(Node a, Node b, int l, int r) {
    int mid = l + r >> 1;
    Node c = Node();
    if (a.lval == linf) {c = b; return c;}
    if (b.lval == linf) {c = a; return c;}
    c.ans = max(a.ans, b.ans); c.lval = a.lval; c.rval = b.rval; c.llen = a.llen; c.rlen = b.rlen;
    if (a.rval != b.lval) return c;
    smax(c.ans, a.rlen + b.llen);
    if (a.llen == mid - l + 1) c.llen += b.llen;
    if (b.rlen == r - mid) c.rlen += a.rlen;
    return c;
}
ll a[N], d[N], lzys[4 * N], lzya[4 * N];
void Init(int node, int l, int r) {
    lzys[node] = linf; lzya[node] = 0;
    if (l == r) {
        st[node] = Node(1, 1, 1, d[l], d[l]);
        return;
    }
    int mid = l + r >> 1;
    Init(2 * node, l, mid);
    Init(2 * node + 1, mid + 1, r);
    st[node] = Merge(st[2 * node], st[2 * node + 1], l, r);
}
void Propagate(int node, int l, int r) {
    if (lzys[node] == linf && lzya[node] == 0) return;
    if (l < r) {
        if (lzys[node] != linf) {
            lzys[2 * node] = lzys[2 * node + 1] = lzys[node];
            lzya[2 * node] = lzya[2 * node + 1] = 0;
        }
        if (lzya[node] != 0) {
            if (lzys[2 * node] != linf) lzys[2 * node] += lzya[node];
            else lzya[2 * node] += lzya[node];
            if (lzys[2 * node + 1] != linf) lzys[2 * node + 1] += lzya[node];
            else lzya[2 * node + 1] += lzya[node];
        }
    }
    if (lzys[node] != linf) {
        st[node] = Node(r - l + 1, r - l + 1, r - l + 1, lzys[node], lzys[node]);
        lzys[node] = linf;
    }
    if (lzya[node] != 0) {
        st[node].lval += lzya[node]; st[node].rval += lzya[node];
        lzya[node] = 0;
    }
}
void Set(int node, int l, int r, int ql, int qr, ll y) {
    Propagate(node, l, r);
    if (r < ql || qr < l || ql > qr) return;
    if (ql <= l && r <= qr) {
        lzys[node] = y;
        Propagate(node, l, r);
        return;
    }
    int mid = l + r >> 1;
    Set(2 * node, l, mid, ql, qr, y);
    Set(2 * node + 1, mid + 1, r, ql, qr, y);
    st[node] = Merge(st[2 * node], st[2 * node + 1], l, r);
}
void Add(int node, int l, int r, int ql, int qr, ll y) {
    Propagate(node, l, r);
    if (r < ql || qr < l || ql > qr) return;
    if (ql <= l && r <= qr) {
        lzya[node] = y;
        Propagate(node, l, r);
        return;
    }
    int mid = l + r >> 1;
    Add(2 * node, l, mid, ql, qr, y);
    Add(2 * node + 1, mid + 1, r, ql, qr, y);
    st[node] = Merge(st[2 * node], st[2 * node + 1], l, r);
}
Node Get(int node, int l, int r, int ql, int qr) {
    Propagate(node, l, r);
    if (r < ql || qr < l || ql > qr) return Node();
    if (ql <= l && r <= qr) return st[node];
    int mid = l + r >> 1;
    return Merge(Get(2 * node, l, mid, ql, qr), Get(2 * node + 1, mid + 1, r, ql, qr), l, r);
}
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n, q;
    cin >> n >> q;
    st1.Reset1(n); st2.Reset1(n);
    for (int i = 1; i <= n; i++) {
        cin >> a[i];
        st1.Add1(1, 1, n, i, i, a[i]);
    }
    for (int i = 1; i < n; i++) d[i] = a[i + 1] - a[i];
    Init(1, 1, n - 1);
    while (q--) {
        int ty; cin >> ty;
        if (ty == 1) {
            int l, r;
            ll s, c;
            cin >> l >> r >> s >> c;
            st1.Add1(1, 1, n, l, r, s - l * c);
            st2.Add1(1, 1, n, l, r, c);
            if (l > 1) Add(1, 1, n - 1, l - 1, l - 1, s);
            Add(1, 1, n - 1, l, r - 1, c);
            if (r < n) Add(1, 1, n - 1, r, r, -s - (r - l) * c);
        }
        else if (ty == 2) {
            int l, r;
            ll s, c;
            cin >> l >> r >> s >> c;
            st1.Set1(1, 1, n, l, r, s - l * c);
            st2.Set1(1, 1, n, l, r, c);
            if (l > 1) {
                ll val = st1.Get1(1, 1, n, l - 1) + (l - 1) * st2.Get1(1, 1, n, l - 1);
                Set(1, 1, n - 1, l - 1, l - 1, s - val);
            }
            Set(1, 1, n - 1, l, r - 1, c);
            if (r < n) {
                ll val = st1.Get1(1, 1, n, r + 1) + (r + 1) * st2.Get1(1, 1, n, r + 1);
                Set(1, 1, n - 1, r, r, val - s - (r - l) * c);
            }
        }
        else {
            int l, r;
            cin >> l >> r;
            cout << Get(1, 1, n - 1, l, r - 1).ans + 1 << en;
        }
    }
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

Progression.cpp: In member function 'void Segtree::Set1(int, int, int, int, int, long long int)':
Progression.cpp:44:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   44 |         int mid = l + r >> 1;
      |                   ~~^~~
Progression.cpp: In member function 'void Segtree::Add1(int, int, int, int, int, long long int)':
Progression.cpp:57:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   57 |         int mid = l + r >> 1;
      |                   ~~^~~
Progression.cpp: In member function 'long long int Segtree::Get1(int, int, int, int)':
Progression.cpp:65:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   65 |         int mid = l + r >> 1;
      |                   ~~^~~
Progression.cpp: In function 'Node Merge(Node, Node, int, int)':
Progression.cpp:82:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   82 |     int mid = l + r >> 1;
      |               ~~^~~
Progression.cpp: In function 'void Init(int, int, int)':
Progression.cpp:100:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  100 |     int mid = l + r >> 1;
      |               ~~^~~
Progression.cpp: In function 'void Set(int, int, int, int, int, long long int)':
Progression.cpp:136:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  136 |     int mid = l + r >> 1;
      |               ~~^~~
Progression.cpp: In function 'void Add(int, int, int, int, int, long long int)':
Progression.cpp:149:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  149 |     int mid = l + r >> 1;
      |               ~~^~~
Progression.cpp: In function 'Node Get(int, int, int, int, int)':
Progression.cpp:158:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  158 |     int mid = l + r >> 1;
      |               ~~^~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 15
• Subtask 3: 0 / 35
• Subtask 4: 0 / 11
• Subtask 5: 0 / 13
• Subtask 6: 0 / 17