oj.uz

Submission #549489

# Submission time Handle Problem Language Result Execution time Memory
549489 2022-04-15T22:44:33 Z duality Fish 2 (JOI22_fish2) C++17
25 / 100
 4000 ms 141176 KB 
#define DEBUG 0

#include <bits/stdc++.h>
using namespace std;

#if DEBUG
// basic debugging macros
int __i__,__j__;
#define printLine(l) for(__i__=0;__i__<l;__i__++){cout<<"-";}cout<<endl
#define printLine2(l,c) for(__i__=0;__i__<l;__i__++){cout<<c;}cout<<endl
#define printVar(n) cout<<#n<<": "<<n<<endl
#define printArr(a,l) cout<<#a<<": ";for(__i__=0;__i__<l;__i__++){cout<<a[__i__]<<" ";}cout<<endl
#define print2dArr(a,r,c) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<a[__i__][__j__]<<" ";}cout<<endl;}
#define print2dArr2(a,r,c,l) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<setw(l)<<setfill(' ')<<a[__i__][__j__]<<" ";}cout<<endl;}

// advanced debugging class
// debug 1,2,'A',"test";
class _Debug {
    public:
        template<typename T>
        _Debug& operator,(T val) {
            cout << val << endl;
            return *this;
        }
};
#define debug _Debug(),
#else
#define printLine(l)
#define printLine2(l,c)
#define printVar(n)
#define printArr(a,l)
#define print2dArr(a,r,c)
#define print2dArr2(a,r,c,l)
#define debug
#endif

// define
#define MAX_VAL 999999999
#define MAX_VAL_2 999999999999999999LL
#define EPS 1e-6
#define mp make_pair
#define pb push_back

// typedef
typedef unsigned int UI;
typedef long long int LLI;
typedef unsigned long long int ULLI;
typedef unsigned short int US;
typedef pair<int,int> pii;
typedef pair<LLI,LLI> plli;
typedef vector<int> vi;
typedef vector<LLI> vlli;
typedef vector<pii> vpii;
typedef vector<plli> vplli;

// ---------- END OF TEMPLATE ----------
#pragma GCC optimize("Ofast")

int N,A[100002];
LLI bit[100003],bit2[100003];
int update(int i,int num) {
    for (i++; i <= N; i += i & (-i)) bit[i] += num;
    return 0;
}
LLI query(int s,int e) {
    LLI sum = 0;
    for (e++; e > 0; e -= e & (-e)) sum += bit[e];
    for (; s > 0; s -= s & (-s)) sum -= bit[s];
    return sum;
}
set<int> layer[31];
int tree[1 << 18],pre[1 << 18],occ[1 << 18];
int build(int s,int e,int i) {
    if (s == e) {
        occ[i] = 1,tree[i] = pre[i] = 0;
        return 0;
    }

    int mid = (s+e) / 2;
    build(s,mid,2*i),build(mid+1,e,2*i+1);
    tree[i] = tree[2*i]+tree[2*i+1];
    pre[i] = min(pre[2*i],tree[2*i]+pre[2*i+1]);
    occ[i] = 0;
    if (pre[i] == pre[2*i]) occ[i] += occ[2*i];
    if (pre[i] == tree[2*i]+pre[2*i+1]) occ[i] += occ[2*i+1];
    return 0;
}
int update3(int i,int num) {
    int u = i+(1 << 17);
    tree[u] += num,pre[u] += num;
    while (u > 1) {
        u >>= 1;
        tree[u] = tree[u << 1]+tree[(u << 1)|1];
        pre[u] = min(pre[u << 1],tree[u << 1]+pre[(u << 1)|1]);
        occ[u] = 0;
        if (pre[u] == pre[u << 1]) occ[u] += occ[u << 1];
        if (pre[u] == tree[u << 1]+pre[(u << 1)|1]) occ[u] += occ[(u << 1)|1];
    }
    return 0;
}
int arr[1000];
int f = 0;
int toadd[1 << 17],done[1 << 17];
vi all;
int update(int s,int e,int as,int ae,int i,int num) {
    if (f == 1) toadd[as] += num,toadd[ae+1] -= num,all.pb(as),all.pb(ae+1);
    else update3(as,num),update3(ae+1,-num);
    return 0;
}
pair<pii,int> query(int s,int e,int qs,int qe,int i) {
    if ((s >= qs) && (e <= qe)) return mp(mp(tree[i],pre[i]),occ[i]);

    int mid = (s+e) / 2;
    if (qe <= mid) return query(s,mid,qs,qe,2*i);
    else if (qs >= mid+1) return query(mid+1,e,qs,qe,2*i+1);
    else {
        auto l = query(s,mid,qs,qe,2*i),r = query(mid+1,e,qs,qe,2*i+1);
        pair<pii,int> p;
        p.first.first = l.first.first+r.first.first;
        p.first.second = min(l.first.second,l.first.first+r.first.second);
        p.second = 0;
        if (p.first.second == l.first.second) p.second += l.second;
        if (p.first.second == l.first.first+r.first.second) p.second += r.second;
        return p;
    }
}

int check(int l,int r,int m = -1) {
    if ((m != -1) && ((l > m) || (r < m))) return 0;
    else return (l < r-1) && (min(A[l],A[r]) > query(l+1,r-1));
}
int update2(int p,int a,int t) {
    int i;
    for (i = 0; i < 31; i++) {
        auto it = layer[i].lower_bound(p);
        if (it == layer[i].end()) continue;
        if (t == 1) {
            if ((it != layer[i].begin()) && check(*prev(it),*it,p)) update(0,N-1,*prev(it)+1,*it-1,0,-1);
            if ((next(it) != layer[i].end()) && check(*it,*next(it),p)) update(0,N-1,*it+1,*next(it)-1,0,-1);
            if ((it != layer[i].begin()) && (next(it) != layer[i].end()) && check(*prev(it),*next(it),p))
                update(0,N-1,*prev(it)+1,*next(it)-1,0,-1);
            if ((it != layer[i].begin()) && (prev(it) != layer[i].begin()) && check(*prev(prev(it)),*it,p))
                update(0,N-1,*prev(prev(it))+1,*it-1,0,-1);
            if ((next(it) != layer[i].end()) && (next(next(it)) != layer[i].end()) && check(*it,*next(next(it)),p))
                update(0,N-1,*it+1,*next(next(it))-1,0,-1);
        }
        if (*it == p) layer[i].erase(it);
    }
    update(p,a-A[p]),A[p] = a;
    for (i = 0; i < 31; i++) {
        if (i <= __lg(A[p])) layer[i].insert(p);
        auto it = layer[i].lower_bound(p);
        if (it == layer[i].end()) continue;
        if (t == 1) {
            if ((it != layer[i].begin()) && check(*prev(it),*it,p)) update(0,N-1,*prev(it)+1,*it-1,0,1);
            if ((next(it) != layer[i].end()) && check(*it,*next(it),p)) update(0,N-1,*it+1,*next(it)-1,0,1);
            if ((it != layer[i].begin()) && (next(it) != layer[i].end()) && check(*prev(it),*next(it),p))
                update(0,N-1,*prev(it)+1,*next(it)-1,0,1);
            if ((it != layer[i].begin()) && (prev(it) != layer[i].begin()) && check(*prev(prev(it)),*it,p))
                update(0,N-1,*prev(prev(it))+1,*it-1,0,1);
            if ((next(it) != layer[i].end()) && (next(next(it)) != layer[i].end()) && check(*it,*next(next(it)),p))
                update(0,N-1,*it+1,*next(next(it))-1,0,1);
        }
    }
    return 0;
}
int main() {
    int i;
    int Q;
    scanf("%d",&N);
    mt19937 gen;
    clock_t init = clock();
    for (i = 1; i <= N; i++) scanf("%d",&A[i]);
    A[0] = A[N+1] = 1.1e9,N += 2;

    int j;
    for (i = 0; i < N; i++) {
        for (j = 0; j <= __lg(A[i]); j++) layer[j].insert(i);
    }
    for (i = 0; i < N; i++) update(i,A[i]);
    build(0,(1 << 17)-1,1);
    for (i = 0; i < 31; i++) {
        for (auto it = layer[i].begin(); it != layer[i].end(); it++) {
            if (it != layer[i].begin()) {
                if (check(*prev(it),*it)) update(0,N-1,*prev(it)+1,*it-1,0,1);
                if (next(it) != layer[i].end()) {
                    if (check(*prev(it),*next(it))) update(0,N-1,*prev(it)+1,*next(it)-1,0,1);
                }
            }
        }
    }

    int T,X,Y,L,R;
    scanf("%d",&Q);
    for (i = 0; i < Q; i++) {
        scanf("%d",&T);
        //T = 2;
        if (T == 1) {
            //X = uniform_int_distribution<int>(1,N-2)(gen),Y = uniform_int_distribution<int>(1,1e9)(gen);
            scanf("%d %d",&X,&Y);
            update2(X,Y,1);
        }
        else {
            scanf("%d %d",&L,&R);
            if ((L == 1) && (R == N-2)) {
                auto p = query(0,(1 << 17)-1,L,R,1);
                printf("%d\n",p.second);
            }
            else {
                //L = 1+(rand() % N),R = 1+(rand() % N); if (L > R) swap(L,R);
                int l = A[L-1],r = A[R+1];
                f = 1;
                update2(L-1,1.1e9,1),update2(R+1,1.1e9,1);
                f = 0;
                for (int x: all) {
                    if (!done[x] && (toadd[x] != 0)) update3(x,toadd[x]),done[x] = 1;
                }
                auto p = query(0,(1 << 17)-1,L,R,1);
                printf("%d\n",p.second);
                update2(L-1,l,0),update2(R+1,r,0);
                for (int x: all) {
                    if (done[x] && (toadd[x] != 0)) update3(x,-toadd[x]),done[x] = 0,toadd[x] = 0;
                }
                all.clear();
            }
        }
    }
    //cerr<<(double)(clock()-init)/CLOCKS_PER_SEC<<endl;

    return 0;
}

Compilation message

fish2.cpp: In function 'int main()':
fish2.cpp:172:13: warning: unused variable 'init' [-Wunused-variable]
  172 |     clock_t init = clock();
      |             ^~~~
fish2.cpp:170:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  170 |     scanf("%d",&N);
      |     ~~~~~^~~~~~~~~
fish2.cpp:173:35: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  173 |     for (i = 1; i <= N; i++) scanf("%d",&A[i]);
      |                              ~~~~~^~~~~~~~~~~~
fish2.cpp:194:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  194 |     scanf("%d",&Q);
      |     ~~~~~^~~~~~~~~
fish2.cpp:196:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  196 |         scanf("%d",&T);
      |         ~~~~~^~~~~~~~~
fish2.cpp:200:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  200 |             scanf("%d %d",&X,&Y);
      |             ~~~~~^~~~~~~~~~~~~~~
fish2.cpp:204:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  204 |             scanf("%d %d",&L,&R);
      |             ~~~~~^~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 3412 KB Output is correct
2 Correct 3 ms 3284 KB Output is correct
3 Correct 3 ms 3412 KB Output is correct
4 Correct 3 ms 3284 KB Output is correct
5 Correct 37 ms 3668 KB Output is correct
6 Correct 27 ms 3640 KB Output is correct
7 Correct 24 ms 3624 KB Output is correct
8 Correct 31 ms 3412 KB Output is correct
9 Correct 22 ms 3524 KB Output is correct
10 Correct 24 ms 4076 KB Output is correct
11 Correct 24 ms 4096 KB Output is correct
12 Correct 31 ms 3812 KB Output is correct
13 Correct 27 ms 3576 KB Output is correct
14 Correct 14 ms 3708 KB Output is correct
15 Correct 28 ms 3700 KB Output is correct
16 Correct 18 ms 3540 KB Output is correct
17 Correct 30 ms 3568 KB Output is correct
18 Correct 22 ms 3524 KB Output is correct
19 Correct 29 ms 3828 KB Output is correct
20 Correct 26 ms 3800 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3284 KB Output is correct
2 Correct 813 ms 74608 KB Output is correct
3 Correct 334 ms 34776 KB Output is correct
4 Correct 825 ms 74668 KB Output is correct
5 Correct 354 ms 36428 KB Output is correct
6 Correct 1693 ms 140604 KB Output is correct
7 Correct 89 ms 13964 KB Output is correct
8 Correct 1700 ms 140416 KB Output is correct
9 Correct 88 ms 13896 KB Output is correct
10 Correct 798 ms 76560 KB Output is correct
11 Correct 232 ms 29004 KB Output is correct
12 Correct 166 ms 21964 KB Output is correct
13 Correct 165 ms 21880 KB Output is correct
14 Correct 1180 ms 77340 KB Output is correct
15 Correct 1096 ms 77360 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 3412 KB Output is correct
2 Correct 3 ms 3284 KB Output is correct
3 Correct 3 ms 3412 KB Output is correct
4 Correct 3 ms 3284 KB Output is correct
5 Correct 37 ms 3668 KB Output is correct
6 Correct 27 ms 3640 KB Output is correct
7 Correct 24 ms 3624 KB Output is correct
8 Correct 31 ms 3412 KB Output is correct
9 Correct 22 ms 3524 KB Output is correct
10 Correct 24 ms 4076 KB Output is correct
11 Correct 24 ms 4096 KB Output is correct
12 Correct 31 ms 3812 KB Output is correct
13 Correct 27 ms 3576 KB Output is correct
14 Correct 14 ms 3708 KB Output is correct
15 Correct 28 ms 3700 KB Output is correct
16 Correct 18 ms 3540 KB Output is correct
17 Correct 30 ms 3568 KB Output is correct
18 Correct 22 ms 3524 KB Output is correct
19 Correct 29 ms 3828 KB Output is correct
20 Correct 26 ms 3800 KB Output is correct
21 Correct 4 ms 3284 KB Output is correct
22 Correct 813 ms 74608 KB Output is correct
23 Correct 334 ms 34776 KB Output is correct
24 Correct 825 ms 74668 KB Output is correct
25 Correct 354 ms 36428 KB Output is correct
26 Correct 1693 ms 140604 KB Output is correct
27 Correct 89 ms 13964 KB Output is correct
28 Correct 1700 ms 140416 KB Output is correct
29 Correct 88 ms 13896 KB Output is correct
30 Correct 798 ms 76560 KB Output is correct
31 Correct 232 ms 29004 KB Output is correct
32 Correct 166 ms 21964 KB Output is correct
33 Correct 165 ms 21880 KB Output is correct
34 Correct 1180 ms 77340 KB Output is correct
35 Correct 1096 ms 77360 KB Output is correct
36 Correct 956 ms 78408 KB Output is correct
37 Correct 424 ms 36300 KB Output is correct
38 Correct 423 ms 36260 KB Output is correct
39 Correct 942 ms 78452 KB Output is correct
40 Correct 422 ms 36036 KB Output is correct
41 Correct 1772 ms 141132 KB Output is correct
42 Correct 1772 ms 141176 KB Output is correct
43 Correct 149 ms 15012 KB Output is correct
44 Correct 150 ms 14860 KB Output is correct
45 Correct 845 ms 73668 KB Output is correct
46 Correct 860 ms 75596 KB Output is correct
47 Correct 269 ms 26720 KB Output is correct
48 Correct 219 ms 23228 KB Output is correct
49 Correct 214 ms 22712 KB Output is correct
50 Correct 1244 ms 78456 KB Output is correct
51 Correct 1153 ms 77728 KB Output is correct
52 Correct 1240 ms 77436 KB Output is correct

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3284 KB Output is correct
2 Correct 813 ms 74608 KB Output is correct
3 Correct 334 ms 34776 KB Output is correct
4 Correct 825 ms 74668 KB Output is correct
5 Correct 354 ms 36428 KB Output is correct
6 Correct 1693 ms 140604 KB Output is correct
7 Correct 89 ms 13964 KB Output is correct
8 Correct 1700 ms 140416 KB Output is correct
9 Correct 88 ms 13896 KB Output is correct
10 Correct 798 ms 76560 KB Output is correct
11 Correct 232 ms 29004 KB Output is correct
12 Correct 166 ms 21964 KB Output is correct
13 Correct 165 ms 21880 KB Output is correct
14 Correct 1180 ms 77340 KB Output is correct
15 Correct 1096 ms 77360 KB Output is correct
16 Correct 4 ms 3412 KB Output is correct
17 Execution timed out 4061 ms 36856 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3284 KB Output is correct
2 Correct 813 ms 74608 KB Output is correct
3 Correct 334 ms 34776 KB Output is correct
4 Correct 825 ms 74668 KB Output is correct
5 Correct 354 ms 36428 KB Output is correct
6 Correct 1693 ms 140604 KB Output is correct
7 Correct 89 ms 13964 KB Output is correct
8 Correct 1700 ms 140416 KB Output is correct
9 Correct 88 ms 13896 KB Output is correct
10 Correct 798 ms 76560 KB Output is correct
11 Correct 232 ms 29004 KB Output is correct
12 Correct 166 ms 21964 KB Output is correct
13 Correct 165 ms 21880 KB Output is correct
14 Correct 1180 ms 77340 KB Output is correct
15 Correct 1096 ms 77360 KB Output is correct
16 Correct 3 ms 3284 KB Output is correct
17 Execution timed out 4069 ms 74972 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 3412 KB Output is correct
2 Correct 3 ms 3284 KB Output is correct
3 Correct 3 ms 3412 KB Output is correct
4 Correct 3 ms 3284 KB Output is correct
5 Correct 37 ms 3668 KB Output is correct
6 Correct 27 ms 3640 KB Output is correct
7 Correct 24 ms 3624 KB Output is correct
8 Correct 31 ms 3412 KB Output is correct
9 Correct 22 ms 3524 KB Output is correct
10 Correct 24 ms 4076 KB Output is correct
11 Correct 24 ms 4096 KB Output is correct
12 Correct 31 ms 3812 KB Output is correct
13 Correct 27 ms 3576 KB Output is correct
14 Correct 14 ms 3708 KB Output is correct
15 Correct 28 ms 3700 KB Output is correct
16 Correct 18 ms 3540 KB Output is correct
17 Correct 30 ms 3568 KB Output is correct
18 Correct 22 ms 3524 KB Output is correct
19 Correct 29 ms 3828 KB Output is correct
20 Correct 26 ms 3800 KB Output is correct
21 Correct 4 ms 3284 KB Output is correct
22 Correct 813 ms 74608 KB Output is correct
23 Correct 334 ms 34776 KB Output is correct
24 Correct 825 ms 74668 KB Output is correct
25 Correct 354 ms 36428 KB Output is correct
26 Correct 1693 ms 140604 KB Output is correct
27 Correct 89 ms 13964 KB Output is correct
28 Correct 1700 ms 140416 KB Output is correct
29 Correct 88 ms 13896 KB Output is correct
30 Correct 798 ms 76560 KB Output is correct
31 Correct 232 ms 29004 KB Output is correct
32 Correct 166 ms 21964 KB Output is correct
33 Correct 165 ms 21880 KB Output is correct
34 Correct 1180 ms 77340 KB Output is correct
35 Correct 1096 ms 77360 KB Output is correct
36 Correct 956 ms 78408 KB Output is correct
37 Correct 424 ms 36300 KB Output is correct
38 Correct 423 ms 36260 KB Output is correct
39 Correct 942 ms 78452 KB Output is correct
40 Correct 422 ms 36036 KB Output is correct
41 Correct 1772 ms 141132 KB Output is correct
42 Correct 1772 ms 141176 KB Output is correct
43 Correct 149 ms 15012 KB Output is correct
44 Correct 150 ms 14860 KB Output is correct
45 Correct 845 ms 73668 KB Output is correct
46 Correct 860 ms 75596 KB Output is correct
47 Correct 269 ms 26720 KB Output is correct
48 Correct 219 ms 23228 KB Output is correct
49 Correct 214 ms 22712 KB Output is correct
50 Correct 1244 ms 78456 KB Output is correct
51 Correct 1153 ms 77728 KB Output is correct
52 Correct 1240 ms 77436 KB Output is correct
53 Correct 4 ms 3412 KB Output is correct
54 Execution timed out 4061 ms 36856 KB Time limit exceeded
55 Halted 0 ms 0 KB -