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답안 #737959

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
737959 2023-05-08T03:05:38 Z resting Fish 2 (JOI22_fish2) C++17
60 / 100
 4000 ms 92220 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long

const int mx = 1e5 + 5;
const ll inf = 1e15;

vector<pair<int, int>> res;
struct segtree {
    int l, r, v, m;
    segtree* lc, * rc;
    segtree* getmem();
    set<pair<int, int>> lm, rm;
    segtree() : segtree(-1, -1) {};
    segtree(int l, int r) : l(l), r(r) {
        m = (l + r) / 2;
        if (l == r)return;
        lc = getmem(); *lc = segtree(l, m);
        rc = getmem(); *rc = segtree(m + 1, r);
    }
    void del(int ql, int qr) {
        if (qr < m) { lc->del(ql, qr); return; }
        if (ql > m) { rc->del(ql, qr); return; }
        lm.erase({ ql, qr });
        rm.erase({ qr, ql });
    }
    void add(int ql, int qr) {
        if (qr < m) { lc->add(ql, qr); return; }
        if (ql > m) { rc->add(ql, qr); return; }
        lm.insert({ ql, qr });
        rm.insert({ qr, ql });
    }
    void q(int qi) {
        if (l == r)return;
        if (qi <= m)lc->q(qi);
        else rc->q(qi);
        if (qi <= m) {
            for (auto t = lm.begin(); t != lm.end() && t->first <= qi; t++)
                res.push_back(*t);
        } else {
            for (auto t = rm.rbegin(); t != rm.rend() && t->first >= qi; t++)
                res.push_back({ t->second, t->first });
        }
    }
};
segtree mem[mx * 4];
int memsz = 0;
segtree* segtree::getmem() { return &mem[memsz++]; }

struct segtree2 {
    int l, r, cnt1 = 0, cnt2 = 0, lz = 0;
    segtree2* lc, * rc;
    segtree2* getmem();
    segtree2() : segtree2(-1, -1) {};
    segtree2(int l, int r) : l(l), r(r) {
        if (l == r)return;
        int m = (l + r) / 2;
        lc = getmem(); *lc = segtree2(l, m);
        rc = getmem(); *rc = segtree2(m + 1, r);
    }
    void fix() {
        if (l == r) {
            cnt1 = cnt2 = 0;
            if (lz == 1) cnt1 = 1;
            if (lz > 1) cnt2 = 1;
            return;
        }
        if (lz == 0) {
            cnt1 = lc->cnt1 + rc->cnt1;
            cnt2 = lc->cnt2 + rc->cnt2;
        } else if (lz == 1) {
            cnt2 = lc->cnt1 + rc->cnt1 + lc->cnt2 + rc->cnt2;
            cnt1 = (r - l + 1) - cnt2;
        } else {
            cnt1 = 0;
            cnt2 = (r - l + 1);
        }
    }
    void upd(int ql, int qr, int qv) {
        if (l > qr || r < ql) return;
        if (l >= ql && r <= qr) {
            lz += qv; fix();
            return;
        }
        lc->upd(ql, qr, qv);
        rc->upd(ql, qr, qv);
        fix();
    }
    int q(int ql, int qr, int qlz = 0) {
        if (l > qr || r < ql) return 0;
        lz += qlz; fix();
        int res = 0;
        if (l >= ql && r <= qr) {
            res = cnt2;
        } else {
            res = lc->q(ql, qr, lz) + rc->q(ql, qr, lz);
        }
        lz -= qlz; fix();
        return res;
    }
};
segtree2 mem2[mx * 4];
int memsz2 = 0;
segtree2* segtree2::getmem() { return &mem2[memsz2++]; }

struct segtree3 {
    int l, r; ll mx = 0, sm = 0;
    segtree3* lc, * rc;
    segtree3* getmem();
    segtree3() : segtree3(-1, -1) {};
    segtree3(int l, int r) : l(l), r(r) {
        if (l == r)return;
        int m = (l + r) / 2;
        lc = getmem(); *lc = segtree3(l, m);
        rc = getmem(); *rc = segtree3(m + 1, r);
    }
    void fix() {
        if (l == r) return;
        mx = max(lc->mx, rc->mx);
        sm = lc->sm + rc->sm;
    }
    void upd(int qi, ll qv) {
        if (l > qi || r < qi) return;
        if (l == r) {
            mx = qv; sm = qv;return;
        }
        lc->upd(qi, qv); rc->upd(qi, qv);
        fix();
    }
    int walkl(int ql, ll qv) {
        if (r < ql) return -1;
        if (mx <= qv) return -1;
        if (l == r) return l;
        int v = lc->walkl(ql, qv);
        return v == -1 ? rc->walkl(ql, qv) : v;
    }
    int walkr(int qr, ll qv) {
        if (l > qr) return -1;
        if (mx <= qv) return -1;
        if (l == r) return l;
        int v = rc->walkr(qr, qv);
        return v == -1 ? lc->walkr(qr, qv) : v;
    }
    ll qsum(int ql, int qr) {
        if (l > qr || r < ql) return 0;
        if (l >= ql && r <= qr) return sm;
        return lc->qsum(ql, qr) + rc->qsum(ql, qr);
    }
};
segtree3 mem3[mx * 4];
int memsz3 = 0;
segtree3* segtree3::getmem() { return &mem3[memsz++]; }


segtree ac; segtree2 ac2; segtree3 ac3; vector<ll> ac4;
int n;

void clear(int i) {
    res.clear(); ac.q(i);
    for (auto& x : res) {
        auto [l, r] = x;
        //cout << "DEL " << l << " " << r << endl;
        ac.del(l, r);
        ac2.upd(l, r, -1);
    }
}

void redo(int i, bool extendleft, bool extendright) {
    //cout << "REDO " << i << endl;
    //walking time
    int l = i, r = i;
    while (1) {
        ll t = ac3.qsum(l, r);
        int wr = ac3.walkl(r + 1, t);
        int wl = ac3.walkr(l - 1, t);
        if (wl < i - 1 && !extendleft) break;
        if (wr > i + 1 && !extendright) break;
        //cout << l << "," << r << "," << wl << "," << wr << endl;
        if (wl == -1 || wr == -1) break;
        t = ac3.qsum(wl + 1, wr - 1);
        if (ac4[wl] > t && ac4[wr] > t) {
            //cout << "ADD " << wl + 1 << " " << wr - 1 << " " << t << " " << ac4[wl] << " " << ac4[wr] << endl;
            ac.add(wl + 1, wr - 1);
            ac2.upd(wl + 1, wr - 1, 1);
        }
        l = wl + 1, r = wr - 1;
        if (ac4[wl] > ac4[wr]) {
            if (!extendright) break;
            r++;
        } else {
            if (!extendleft) break;
            l--;
        }
    }
}

void upd(int i, ll v) {
    ac4[i] = v; ac3.upd(i, v);
    clear(i);
    if (i < n + 1)clear(i + 1);
    if (i)clear(i - 1);

    redo(i, 1, 1);
    if (i < n + 1)redo(i + 1, 0, 1);
    if (i)redo(i - 1, 1, 0);
}

void solve() {
    cin >> n;
    vector<int> a(n + 1, 0); for (int i = 1; i <= n; i++) cin >> a[i];
    ac = segtree(0, n + 1); ac2 = segtree2(0, n + 1); ac3 = segtree3(0, n + 1); ac4 = vector<ll>(n + 2, 0);
    for (int i = 0; i <= n + 1; i++) upd(i, a[i]);
    int q; cin >> q;
    while (q--) {
        int t; cin >> t;
        if (t == 1) {
            int x, y; cin >> x >> y; a[x] = y;
            upd(x, y);
        } else {
            int l, r; cin >> l >> r;
            upd(l - 1, inf); upd(r + 1, inf);
            cout << (r - l + 1 - ac2.q(l, r)) << endl;
            upd(l - 1, a[l - 1]); upd(r + 1, a[r + 1]);
        }
    }
}

int32_t main() {
    cin.tie(0)->sync_with_stdio(0);
    int t = 1;
    // cin >> t;
    while (t--)
        solve();
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 35 ms 81644 KB Output is correct
2 Correct 36 ms 81708 KB Output is correct
3 Correct 37 ms 81664 KB Output is correct
4 Correct 37 ms 81672 KB Output is correct
5 Correct 51 ms 81648 KB Output is correct
6 Correct 51 ms 81732 KB Output is correct
7 Correct 43 ms 81720 KB Output is correct
8 Correct 58 ms 81656 KB Output is correct
9 Correct 55 ms 81860 KB Output is correct
10 Correct 43 ms 81756 KB Output is correct
11 Correct 43 ms 81740 KB Output is correct
12 Correct 42 ms 81752 KB Output is correct
13 Correct 52 ms 81760 KB Output is correct
14 Correct 44 ms 81712 KB Output is correct
15 Correct 45 ms 81672 KB Output is correct
16 Correct 45 ms 81728 KB Output is correct
17 Correct 43 ms 81760 KB Output is correct
18 Correct 48 ms 81740 KB Output is correct
19 Correct 41 ms 81672 KB Output is correct
20 Correct 44 ms 81716 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 36 ms 81708 KB Output is correct
2 Correct 220 ms 90900 KB Output is correct
3 Correct 224 ms 89960 KB Output is correct
4 Correct 223 ms 90828 KB Output is correct
5 Correct 220 ms 90116 KB Output is correct
6 Correct 190 ms 86984 KB Output is correct
7 Correct 183 ms 85324 KB Output is correct
8 Correct 191 ms 86960 KB Output is correct
9 Correct 185 ms 85256 KB Output is correct
10 Correct 211 ms 86628 KB Output is correct
11 Correct 200 ms 86372 KB Output is correct
12 Correct 191 ms 86528 KB Output is correct
13 Correct 185 ms 86476 KB Output is correct
14 Correct 205 ms 89256 KB Output is correct
15 Correct 211 ms 89164 KB Output is correct

Subtask #3
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 35 ms 81644 KB Output is correct
2 Correct 36 ms 81708 KB Output is correct
3 Correct 37 ms 81664 KB Output is correct
4 Correct 37 ms 81672 KB Output is correct
5 Correct 51 ms 81648 KB Output is correct
6 Correct 51 ms 81732 KB Output is correct
7 Correct 43 ms 81720 KB Output is correct
8 Correct 58 ms 81656 KB Output is correct
9 Correct 55 ms 81860 KB Output is correct
10 Correct 43 ms 81756 KB Output is correct
11 Correct 43 ms 81740 KB Output is correct
12 Correct 42 ms 81752 KB Output is correct
13 Correct 52 ms 81760 KB Output is correct
14 Correct 44 ms 81712 KB Output is correct
15 Correct 45 ms 81672 KB Output is correct
16 Correct 45 ms 81728 KB Output is correct
17 Correct 43 ms 81760 KB Output is correct
18 Correct 48 ms 81740 KB Output is correct
19 Correct 41 ms 81672 KB Output is correct
20 Correct 44 ms 81716 KB Output is correct
21 Correct 36 ms 81708 KB Output is correct
22 Correct 220 ms 90900 KB Output is correct
23 Correct 224 ms 89960 KB Output is correct
24 Correct 223 ms 90828 KB Output is correct
25 Correct 220 ms 90116 KB Output is correct
26 Correct 190 ms 86984 KB Output is correct
27 Correct 183 ms 85324 KB Output is correct
28 Correct 191 ms 86960 KB Output is correct
29 Correct 185 ms 85256 KB Output is correct
30 Correct 211 ms 86628 KB Output is correct
31 Correct 200 ms 86372 KB Output is correct
32 Correct 191 ms 86528 KB Output is correct
33 Correct 185 ms 86476 KB Output is correct
34 Correct 205 ms 89256 KB Output is correct
35 Correct 211 ms 89164 KB Output is correct
36 Correct 276 ms 92148 KB Output is correct
37 Correct 291 ms 90444 KB Output is correct
38 Correct 301 ms 89556 KB Output is correct
39 Correct 270 ms 92220 KB Output is correct
40 Correct 301 ms 89804 KB Output is correct
41 Correct 219 ms 87244 KB Output is correct
42 Correct 216 ms 87244 KB Output is correct
43 Correct 237 ms 85612 KB Output is correct
44 Correct 250 ms 85544 KB Output is correct
45 Correct 273 ms 87624 KB Output is correct
46 Correct 254 ms 87088 KB Output is correct
47 Correct 252 ms 84940 KB Output is correct
48 Correct 207 ms 86652 KB Output is correct
49 Correct 228 ms 86564 KB Output is correct
50 Correct 229 ms 89296 KB Output is correct
51 Correct 234 ms 89076 KB Output is correct
52 Correct 238 ms 89208 KB Output is correct

Subtask #4
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 36 ms 81708 KB Output is correct
2 Correct 220 ms 90900 KB Output is correct
3 Correct 224 ms 89960 KB Output is correct
4 Correct 223 ms 90828 KB Output is correct
5 Correct 220 ms 90116 KB Output is correct
6 Correct 190 ms 86984 KB Output is correct
7 Correct 183 ms 85324 KB Output is correct
8 Correct 191 ms 86960 KB Output is correct
9 Correct 185 ms 85256 KB Output is correct
10 Correct 211 ms 86628 KB Output is correct
11 Correct 200 ms 86372 KB Output is correct
12 Correct 191 ms 86528 KB Output is correct
13 Correct 185 ms 86476 KB Output is correct
14 Correct 205 ms 89256 KB Output is correct
15 Correct 211 ms 89164 KB Output is correct
16 Correct 38 ms 81592 KB Output is correct
17 Execution timed out 4054 ms 90408 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #5
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 36 ms 81708 KB Output is correct
2 Correct 220 ms 90900 KB Output is correct
3 Correct 224 ms 89960 KB Output is correct
4 Correct 223 ms 90828 KB Output is correct
5 Correct 220 ms 90116 KB Output is correct
6 Correct 190 ms 86984 KB Output is correct
7 Correct 183 ms 85324 KB Output is correct
8 Correct 191 ms 86960 KB Output is correct
9 Correct 185 ms 85256 KB Output is correct
10 Correct 211 ms 86628 KB Output is correct
11 Correct 200 ms 86372 KB Output is correct
12 Correct 191 ms 86528 KB Output is correct
13 Correct 185 ms 86476 KB Output is correct
14 Correct 205 ms 89256 KB Output is correct
15 Correct 211 ms 89164 KB Output is correct
16 Correct 34 ms 81604 KB Output is correct
17 Correct 1317 ms 91324 KB Output is correct
18 Correct 1380 ms 91192 KB Output is correct
19 Correct 2109 ms 90288 KB Output is correct
20 Correct 1455 ms 91320 KB Output is correct
21 Correct 1625 ms 91240 KB Output is correct
22 Correct 1356 ms 91084 KB Output is correct
23 Correct 1660 ms 90600 KB Output is correct
24 Correct 1417 ms 91128 KB Output is correct
25 Correct 1757 ms 90160 KB Output is correct
26 Correct 884 ms 87568 KB Output is correct
27 Correct 850 ms 87132 KB Output is correct
28 Correct 1199 ms 88980 KB Output is correct
29 Correct 871 ms 87204 KB Output is correct
30 Correct 845 ms 87156 KB Output is correct
31 Correct 1221 ms 88940 KB Output is correct
32 Correct 1322 ms 89620 KB Output is correct
33 Correct 904 ms 86356 KB Output is correct
34 Correct 1335 ms 90516 KB Output is correct
35 Correct 1090 ms 86860 KB Output is correct
36 Correct 1310 ms 89248 KB Output is correct
37 Correct 1357 ms 88904 KB Output is correct
38 Correct 1318 ms 88516 KB Output is correct
39 Correct 1035 ms 89580 KB Output is correct
40 Correct 1027 ms 89592 KB Output is correct

Subtask #6
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 35 ms 81644 KB Output is correct
2 Correct 36 ms 81708 KB Output is correct
3 Correct 37 ms 81664 KB Output is correct
4 Correct 37 ms 81672 KB Output is correct
5 Correct 51 ms 81648 KB Output is correct
6 Correct 51 ms 81732 KB Output is correct
7 Correct 43 ms 81720 KB Output is correct
8 Correct 58 ms 81656 KB Output is correct
9 Correct 55 ms 81860 KB Output is correct
10 Correct 43 ms 81756 KB Output is correct
11 Correct 43 ms 81740 KB Output is correct
12 Correct 42 ms 81752 KB Output is correct
13 Correct 52 ms 81760 KB Output is correct
14 Correct 44 ms 81712 KB Output is correct
15 Correct 45 ms 81672 KB Output is correct
16 Correct 45 ms 81728 KB Output is correct
17 Correct 43 ms 81760 KB Output is correct
18 Correct 48 ms 81740 KB Output is correct
19 Correct 41 ms 81672 KB Output is correct
20 Correct 44 ms 81716 KB Output is correct
21 Correct 36 ms 81708 KB Output is correct
22 Correct 220 ms 90900 KB Output is correct
23 Correct 224 ms 89960 KB Output is correct
24 Correct 223 ms 90828 KB Output is correct
25 Correct 220 ms 90116 KB Output is correct
26 Correct 190 ms 86984 KB Output is correct
27 Correct 183 ms 85324 KB Output is correct
28 Correct 191 ms 86960 KB Output is correct
29 Correct 185 ms 85256 KB Output is correct
30 Correct 211 ms 86628 KB Output is correct
31 Correct 200 ms 86372 KB Output is correct
32 Correct 191 ms 86528 KB Output is correct
33 Correct 185 ms 86476 KB Output is correct
34 Correct 205 ms 89256 KB Output is correct
35 Correct 211 ms 89164 KB Output is correct
36 Correct 276 ms 92148 KB Output is correct
37 Correct 291 ms 90444 KB Output is correct
38 Correct 301 ms 89556 KB Output is correct
39 Correct 270 ms 92220 KB Output is correct
40 Correct 301 ms 89804 KB Output is correct
41 Correct 219 ms 87244 KB Output is correct
42 Correct 216 ms 87244 KB Output is correct
43 Correct 237 ms 85612 KB Output is correct
44 Correct 250 ms 85544 KB Output is correct
45 Correct 273 ms 87624 KB Output is correct
46 Correct 254 ms 87088 KB Output is correct
47 Correct 252 ms 84940 KB Output is correct
48 Correct 207 ms 86652 KB Output is correct
49 Correct 228 ms 86564 KB Output is correct
50 Correct 229 ms 89296 KB Output is correct
51 Correct 234 ms 89076 KB Output is correct
52 Correct 238 ms 89208 KB Output is correct
53 Correct 38 ms 81592 KB Output is correct
54 Execution timed out 4054 ms 90408 KB Time limit exceeded
55 Halted 0 ms 0 KB -