oj.uz

Submission #590610

# Submission time Handle Problem Language Result Execution time Memory
590610 2022-07-06T07:28:03 Z balbit Fish 2 (JOI22_fish2) C++14
60 / 100
 4000 ms 14540 KB 
#include <bits/stdc++.h>
using namespace std;
#define int ll
#define ll long long
#define pii pair<ll, ll>
#define f first
#define s second

#define ALL(x) (x).begin(), (x).end()
#define SZ(x) (int)(x).size()
#define pb push_back


#define MX(a,b) a = max(a,b)
#define MN(a,b) a = min(a,b)

#define FOR(i,a,b) for (int i = a; i<b; ++i)
#define REP(i,n) FOR(i,0,n)
#define REP1(i,n) FOR(i,1,n+1)

#ifdef BALBIT
#define bug(...) cerr<<"#"<<__LINE__<<": "<<#__VA_ARGS__<<"- ", _do(__VA_ARGS__)
template<typename T> void _do( T && x ){cerr<<x<<endl;}
template<typename T, typename ...S> void _do( T && x, S && ...y){cerr<<x<<", "; _do(y...);}
#else
#define bug(...)
#define endl '\n'
#endif // BALBIT

const int maxn = 1e5+5;
const int inf = 0x3f3f3f3f;
int n,q;
int A[maxn];


namespace VS{ // value seg tree
    int mn[maxn*4], tg[maxn*4], cnt[maxn*4];
    inline void push(int o, int l, int r) {
        if (tg[o]) {
            mn[o] += tg[o];
            if (l != r) {
                tg[o*2] += tg[o];
                tg[o*2+1] += tg[o];
            }
            tg[o] = 0;
        }
    }
    void pull(int o) {
        mn[o] = min(mn[o*2], mn[o*2+1]);
        cnt[o] = 0;
        if (mn[o*2] == mn[o]) cnt[o] += cnt[o*2];
        if (mn[o*2+1] == mn[o]) cnt[o] += cnt[o*2+1];
    }
    void build(int o=1, int l=0, int r=maxn-1){
        if (l == r) {
            cnt[o] = 1;
            if (l < n) {
                mn[o] = 0;
            }else mn[o] = 1;
            return;
        }
        int mid = (l+r)/2;
        build(o*2,l,mid); build(o*2+1,mid+1,r);
        pull(o);
    }
    void MO(int L, int R, int v, int o=1, int l=0, int r=maxn-1) {
        push(o,l,r);
        if (l > R || r < L) return;
        if (l >= L && r <= R) {
            tg[o] += v; push(o,l,r); return;
        }
        int mid = (l+r)/2;
        MO(L,R,v,o*2,l,mid); MO(L,R,v,o*2+1,mid+1,r);
        pull(o);
    }
    int QU(int L, int R, int o=1, int l=0, int r=maxn-1) {
        if (l > R || r < L) return 0;
        push(o,l,r);
        if (l >= L && r <= R) {
            return mn[o]<=0?cnt[o]:0;
        }
        int mid = (l+r)/2;
        return QU(L,R,o*2,l,mid) + QU(L,R,o*2+1,mid+1,r);
    }
};

namespace NXTS{ // next value seg tree
    int mx[maxn*4];

    void build(int o=1, int l=0, int r=maxn-1){
        if (l == r) {
            if (l < n) {
                mx[o] = A[l];
            }else{
                mx[o] = inf;
            }
            return;
        }
        int mid = (l+r)/2;
        build(o*2,l,mid); build(o*2+1,mid+1,r);
        mx[o] = max(mx[o*2], mx[o*2+1]);
    }
    void MO(int p, int v, int o=1, int l=0, int r=maxn-1) {
        if (l > p || r < p) return;
        if (l == r) {
            mx[o] = v; return;
        }
        int mid = (l+r)/2;
        MO(p,v,o*2,l,mid); MO(p,v,o*2+1,mid+1,r);
        mx[o] = max(mx[o*2], mx[o*2+1]);
    }
    int Qright(int L, int R, int v, int o=1, int l=0, int r=maxn-1) { // rightmost point in this range geq than v
        if (mx[o] < v || l > R || r < L) return -1;
        if (l == r) return l;
        int mid = (l+r)/2;
        int gr = Qright(L,R,v,o*2+1,mid+1,r);
        if (gr == -1) return Qright(L,R,v,o*2,l,mid);
        else return gr;
    }
    int Qleft(int L, int R, int v, int o=1, int l=0, int r=maxn-1) { // rightmost point in this range geq than v
        if (mx[o] < v || l > R || r < L) return -1;
        if (l == r) return l;
        int mid = (l+r)/2;
        int gl = Qleft(L,R,v,o*2,l,mid);
        if (gl == -1) return Qleft(L,R,v,o*2+1,mid+1,r);
        else return gl;
    }
};

namespace BIT{
    // for range sum only i guess
    ll s[maxn];
    ll QU(int e) {
        ll re = 0; for (++e; e>0; e-=e&-e) re += s[e]; return re;
    }
    ll QU(int l, int r) {
        return QU(r) - QU(l-1);
    }
    void MO(int e, int v) {
        for (++e; e<maxn; e+=e&-e) {
            s[e] += v;
        }
    }
}

int toL[maxn], toR[maxn];

//vector<int> fromL[maxn], fromR[maxn]; // from my left, from my right



void updl(int v) {
    if (toL[v]!=-1) {
        int p = toL[v];
        toL[v] = -1;
        VS::MO(p+1, v-1, -1);
        bug("bye", v, p);
    }
    int P = NXTS::Qright(0,v-1,A[v]);
//    bug(v,P);
    if (P != -1 && P != v-1) {
        assert(A[P] >= A[v]);
        ll btw = BIT::QU(P+1, v-1);
        if (btw < A[v]) {
            // yay
            VS::MO(P+1, v-1, 1);
            toL[v] = P;
            bug(btw, v, P);
        }
    }
}

void updr(int v) {
    if (toR[v]!=-1) {
        int p = toR[v];
        toR[v] = -1;
        VS::MO(v+1,p-1, -1);
    }
    int P = NXTS::Qleft(v+1,n-1,A[v]);
//    bug(v,P);
    if (P != -1 && P != v+1) {
        assert(A[P] >= A[v]);
        ll btw = BIT::QU(v+1,P-1);
        if (btw < A[v]) {
            VS::MO(v+1, P-1, 1);
            toR[v] = P;
            bug(v, P);
        }
    }
}

void ptchg(int v, int val) {
    BIT::MO(v, val - A[v]); NXTS::MO(v, val);
    A[v] = val;
}

void chg(int v, int val, bool doleft, bool doright) {
    // walk left!!
    ptchg(v,val);
    updl(v); updr(v);
    if (doleft) {
        for (int u = v-1; u!=-1 && u>=0; u = NXTS::Qright(0,u-1,1+BIT::QU(u,v-1))) {
            updr(u);
        }
    }
    if (doright) {
        for (int u = v+1; u!=-1 && u<n; u = NXTS::Qleft(u+1, maxn-1, 1+BIT::QU(v+1, u))) {
            updl(u);
        }
    }
}

struct mot{
    int l,r,v;
};

ll getfast(int l, int r) {
    vector<mot > undo;

    {
        for (int u = l-1; u!=-1 && u>=0; u = NXTS::Qright(0,u-1,1+BIT::QU(u,l-1))) {
            if (toR[u] != -1) {
                VS::MO(u+1, toR[u]-1, -1);
                undo.pb({u+1, toR[u]-1, 1});
                bug(u);
            }
        }

        for (int u = l; u!=-1 && u<=r; u = NXTS::Qleft(u+1, maxn-1, 1+BIT::QU(l, u))) {
            if (A[u] > BIT::QU(l,u-1)) {
                VS::MO(l, u-1, 1);
                undo.pb({l, u-1, -1});
                bug(u);
            }
        }
    }

    {
        for (int u = r+1; u!=-1 && u<n; u = NXTS::Qleft(u+1,maxn-1,1+BIT::QU(r+1,u))) {
            if (toL[u] != -1) {
                VS::MO(toL[u]+1, u-1, -1);
                undo.pb({toL[u]+1, u-1, 1});
                bug(u);
            }
        }

        for (int u = r; u!=-1 && u>=l; u = NXTS::Qright(0, u-1, 1+BIT::QU(u, r))) {
            if (A[u] > BIT::QU(u+1,r)) {
                VS::MO(u+1, r, 1);
                undo.pb({u+1, r, -1});
                bug(u);
            }
        }
    }

    ll re = VS::QU(l,r);
    for (auto e : undo) {
        bug(e.l, e.r, e.v);
        VS::MO(e.l, e.r, e.v);
    }
    return re;
}

signed main(){
    ios::sync_with_stdio(0), cin.tie(0);

    cin>>n;
    n+=2;
    REP1(i,n-2) {
        cin>>A[i];
    }
    ll big = 1e15+10;
    A[0] = A[n-1] = big;
    REP(i,n){
        BIT::MO(i, A[i]);
    }
    VS::build(); NXTS::build();

    memset(toL, -1, sizeof toL);
    memset(toR, -1, sizeof toR);

    REP(i,n) {
        updl(i); updr(i);
    }

    cin>>q;

    while (q--) {
        int tp, l, r; cin>>tp>>l>>r;
        if (tp == 2) {
            cout<<getfast(l,r)<<endl;
        }else{
//            ptchg(l,r);
            chg(l,r,1,1);
//            updl(l); updr(l);
        }
    }


}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8020 KB Output is correct
2 Correct 9 ms 8020 KB Output is correct
3 Correct 6 ms 8020 KB Output is correct
4 Correct 5 ms 8020 KB Output is correct
5 Correct 13 ms 8152 KB Output is correct
6 Correct 16 ms 8148 KB Output is correct
7 Correct 16 ms 8180 KB Output is correct
8 Correct 18 ms 8180 KB Output is correct
9 Correct 13 ms 8148 KB Output is correct
10 Correct 8 ms 8148 KB Output is correct
11 Correct 8 ms 8148 KB Output is correct
12 Correct 15 ms 8148 KB Output is correct
13 Correct 11 ms 8148 KB Output is correct
14 Correct 10 ms 8148 KB Output is correct
15 Correct 17 ms 8084 KB Output is correct
16 Correct 12 ms 8148 KB Output is correct
17 Correct 8 ms 8148 KB Output is correct
18 Correct 10 ms 8124 KB Output is correct
19 Correct 10 ms 8148 KB Output is correct
20 Correct 8 ms 8148 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8020 KB Output is correct
2 Correct 70 ms 11632 KB Output is correct
3 Correct 69 ms 11620 KB Output is correct
4 Correct 61 ms 11588 KB Output is correct
5 Correct 65 ms 11580 KB Output is correct
6 Correct 52 ms 11640 KB Output is correct
7 Correct 44 ms 11640 KB Output is correct
8 Correct 53 ms 11660 KB Output is correct
9 Correct 69 ms 11596 KB Output is correct
10 Correct 94 ms 11660 KB Output is correct
11 Correct 73 ms 11556 KB Output is correct
12 Correct 50 ms 11592 KB Output is correct
13 Correct 47 ms 11652 KB Output is correct
14 Correct 57 ms 11668 KB Output is correct
15 Correct 57 ms 11640 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8020 KB Output is correct
2 Correct 9 ms 8020 KB Output is correct
3 Correct 6 ms 8020 KB Output is correct
4 Correct 5 ms 8020 KB Output is correct
5 Correct 13 ms 8152 KB Output is correct
6 Correct 16 ms 8148 KB Output is correct
7 Correct 16 ms 8180 KB Output is correct
8 Correct 18 ms 8180 KB Output is correct
9 Correct 13 ms 8148 KB Output is correct
10 Correct 8 ms 8148 KB Output is correct
11 Correct 8 ms 8148 KB Output is correct
12 Correct 15 ms 8148 KB Output is correct
13 Correct 11 ms 8148 KB Output is correct
14 Correct 10 ms 8148 KB Output is correct
15 Correct 17 ms 8084 KB Output is correct
16 Correct 12 ms 8148 KB Output is correct
17 Correct 8 ms 8148 KB Output is correct
18 Correct 10 ms 8124 KB Output is correct
19 Correct 10 ms 8148 KB Output is correct
20 Correct 8 ms 8148 KB Output is correct
21 Correct 5 ms 8020 KB Output is correct
22 Correct 70 ms 11632 KB Output is correct
23 Correct 69 ms 11620 KB Output is correct
24 Correct 61 ms 11588 KB Output is correct
25 Correct 65 ms 11580 KB Output is correct
26 Correct 52 ms 11640 KB Output is correct
27 Correct 44 ms 11640 KB Output is correct
28 Correct 53 ms 11660 KB Output is correct
29 Correct 69 ms 11596 KB Output is correct
30 Correct 94 ms 11660 KB Output is correct
31 Correct 73 ms 11556 KB Output is correct
32 Correct 50 ms 11592 KB Output is correct
33 Correct 47 ms 11652 KB Output is correct
34 Correct 57 ms 11668 KB Output is correct
35 Correct 57 ms 11640 KB Output is correct
36 Correct 100 ms 11672 KB Output is correct
37 Correct 111 ms 11672 KB Output is correct
38 Correct 113 ms 11612 KB Output is correct
39 Correct 115 ms 11612 KB Output is correct
40 Correct 83 ms 11560 KB Output is correct
41 Correct 70 ms 11672 KB Output is correct
42 Correct 62 ms 11672 KB Output is correct
43 Correct 70 ms 11672 KB Output is correct
44 Correct 104 ms 11660 KB Output is correct
45 Correct 102 ms 11616 KB Output is correct
46 Correct 108 ms 11584 KB Output is correct
47 Correct 118 ms 11696 KB Output is correct
48 Correct 69 ms 11672 KB Output is correct
49 Correct 64 ms 11624 KB Output is correct
50 Correct 100 ms 11692 KB Output is correct
51 Correct 73 ms 11668 KB Output is correct
52 Correct 97 ms 11596 KB Output is correct

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8020 KB Output is correct
2 Correct 70 ms 11632 KB Output is correct
3 Correct 69 ms 11620 KB Output is correct
4 Correct 61 ms 11588 KB Output is correct
5 Correct 65 ms 11580 KB Output is correct
6 Correct 52 ms 11640 KB Output is correct
7 Correct 44 ms 11640 KB Output is correct
8 Correct 53 ms 11660 KB Output is correct
9 Correct 69 ms 11596 KB Output is correct
10 Correct 94 ms 11660 KB Output is correct
11 Correct 73 ms 11556 KB Output is correct
12 Correct 50 ms 11592 KB Output is correct
13 Correct 47 ms 11652 KB Output is correct
14 Correct 57 ms 11668 KB Output is correct
15 Correct 57 ms 11640 KB Output is correct
16 Correct 7 ms 8072 KB Output is correct
17 Correct 2560 ms 12572 KB Output is correct
18 Correct 2599 ms 14040 KB Output is correct
19 Correct 2908 ms 13692 KB Output is correct
20 Correct 3566 ms 13632 KB Output is correct
21 Correct 2561 ms 13644 KB Output is correct
22 Correct 2537 ms 13960 KB Output is correct
23 Correct 2607 ms 13692 KB Output is correct
24 Correct 3626 ms 13656 KB Output is correct
25 Correct 2552 ms 13664 KB Output is correct
26 Correct 3328 ms 13584 KB Output is correct
27 Correct 881 ms 14520 KB Output is correct
28 Correct 841 ms 14540 KB Output is correct
29 Correct 857 ms 14460 KB Output is correct
30 Correct 2299 ms 13324 KB Output is correct
31 Correct 2542 ms 13472 KB Output is correct
32 Execution timed out 4069 ms 13132 KB Time limit exceeded
33 Halted 0 ms 0 KB -

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8020 KB Output is correct
2 Correct 70 ms 11632 KB Output is correct
3 Correct 69 ms 11620 KB Output is correct
4 Correct 61 ms 11588 KB Output is correct
5 Correct 65 ms 11580 KB Output is correct
6 Correct 52 ms 11640 KB Output is correct
7 Correct 44 ms 11640 KB Output is correct
8 Correct 53 ms 11660 KB Output is correct
9 Correct 69 ms 11596 KB Output is correct
10 Correct 94 ms 11660 KB Output is correct
11 Correct 73 ms 11556 KB Output is correct
12 Correct 50 ms 11592 KB Output is correct
13 Correct 47 ms 11652 KB Output is correct
14 Correct 57 ms 11668 KB Output is correct
15 Correct 57 ms 11640 KB Output is correct
16 Correct 6 ms 8068 KB Output is correct
17 Correct 1739 ms 11736 KB Output is correct
18 Correct 1114 ms 11720 KB Output is correct
19 Correct 2319 ms 11760 KB Output is correct
20 Correct 1162 ms 11884 KB Output is correct
21 Correct 1510 ms 11764 KB Output is correct
22 Correct 1133 ms 11668 KB Output is correct
23 Correct 1569 ms 11684 KB Output is correct
24 Correct 1166 ms 11688 KB Output is correct
25 Correct 1807 ms 11816 KB Output is correct
26 Correct 827 ms 11840 KB Output is correct
27 Correct 834 ms 11716 KB Output is correct
28 Correct 1059 ms 11900 KB Output is correct
29 Correct 637 ms 11828 KB Output is correct
30 Correct 703 ms 11728 KB Output is correct
31 Correct 996 ms 11776 KB Output is correct
32 Correct 1175 ms 11664 KB Output is correct
33 Correct 1296 ms 11748 KB Output is correct
34 Correct 1086 ms 11716 KB Output is correct
35 Correct 1012 ms 11804 KB Output is correct
36 Correct 1092 ms 11816 KB Output is correct
37 Correct 1128 ms 11816 KB Output is correct
38 Correct 942 ms 11952 KB Output is correct
39 Correct 726 ms 11876 KB Output is correct
40 Correct 711 ms 12108 KB Output is correct

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8020 KB Output is correct
2 Correct 9 ms 8020 KB Output is correct
3 Correct 6 ms 8020 KB Output is correct
4 Correct 5 ms 8020 KB Output is correct
5 Correct 13 ms 8152 KB Output is correct
6 Correct 16 ms 8148 KB Output is correct
7 Correct 16 ms 8180 KB Output is correct
8 Correct 18 ms 8180 KB Output is correct
9 Correct 13 ms 8148 KB Output is correct
10 Correct 8 ms 8148 KB Output is correct
11 Correct 8 ms 8148 KB Output is correct
12 Correct 15 ms 8148 KB Output is correct
13 Correct 11 ms 8148 KB Output is correct
14 Correct 10 ms 8148 KB Output is correct
15 Correct 17 ms 8084 KB Output is correct
16 Correct 12 ms 8148 KB Output is correct
17 Correct 8 ms 8148 KB Output is correct
18 Correct 10 ms 8124 KB Output is correct
19 Correct 10 ms 8148 KB Output is correct
20 Correct 8 ms 8148 KB Output is correct
21 Correct 5 ms 8020 KB Output is correct
22 Correct 70 ms 11632 KB Output is correct
23 Correct 69 ms 11620 KB Output is correct
24 Correct 61 ms 11588 KB Output is correct
25 Correct 65 ms 11580 KB Output is correct
26 Correct 52 ms 11640 KB Output is correct
27 Correct 44 ms 11640 KB Output is correct
28 Correct 53 ms 11660 KB Output is correct
29 Correct 69 ms 11596 KB Output is correct
30 Correct 94 ms 11660 KB Output is correct
31 Correct 73 ms 11556 KB Output is correct
32 Correct 50 ms 11592 KB Output is correct
33 Correct 47 ms 11652 KB Output is correct
34 Correct 57 ms 11668 KB Output is correct
35 Correct 57 ms 11640 KB Output is correct
36 Correct 100 ms 11672 KB Output is correct
37 Correct 111 ms 11672 KB Output is correct
38 Correct 113 ms 11612 KB Output is correct
39 Correct 115 ms 11612 KB Output is correct
40 Correct 83 ms 11560 KB Output is correct
41 Correct 70 ms 11672 KB Output is correct
42 Correct 62 ms 11672 KB Output is correct
43 Correct 70 ms 11672 KB Output is correct
44 Correct 104 ms 11660 KB Output is correct
45 Correct 102 ms 11616 KB Output is correct
46 Correct 108 ms 11584 KB Output is correct
47 Correct 118 ms 11696 KB Output is correct
48 Correct 69 ms 11672 KB Output is correct
49 Correct 64 ms 11624 KB Output is correct
50 Correct 100 ms 11692 KB Output is correct
51 Correct 73 ms 11668 KB Output is correct
52 Correct 97 ms 11596 KB Output is correct
53 Correct 7 ms 8072 KB Output is correct
54 Correct 2560 ms 12572 KB Output is correct
55 Correct 2599 ms 14040 KB Output is correct
56 Correct 2908 ms 13692 KB Output is correct
57 Correct 3566 ms 13632 KB Output is correct
58 Correct 2561 ms 13644 KB Output is correct
59 Correct 2537 ms 13960 KB Output is correct
60 Correct 2607 ms 13692 KB Output is correct
61 Correct 3626 ms 13656 KB Output is correct
62 Correct 2552 ms 13664 KB Output is correct
63 Correct 3328 ms 13584 KB Output is correct
64 Correct 881 ms 14520 KB Output is correct
65 Correct 841 ms 14540 KB Output is correct
66 Correct 857 ms 14460 KB Output is correct
67 Correct 2299 ms 13324 KB Output is correct
68 Correct 2542 ms 13472 KB Output is correct
69 Execution timed out 4069 ms 13132 KB Time limit exceeded
70 Halted 0 ms 0 KB -