oj.uz

Submission #549488

# Submission time Handle Problem Language Result Execution time Memory
549488 2022-04-15T22:40:59 Z duality Fish 2 (JOI22_fish2) C++17
25 / 100
 4000 ms 141756 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);
            //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] != 2) && (toadd[x] != 0)) update3(x,-toadd[x]),done[x] = 2;
            }
            for (int x: all) 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 4 ms 3412 KB Output is correct
2 Correct 3 ms 3412 KB Output is correct
3 Correct 3 ms 3412 KB Output is correct
4 Correct 4 ms 3412 KB Output is correct
5 Correct 37 ms 3768 KB Output is correct
6 Correct 28 ms 3540 KB Output is correct
7 Correct 25 ms 3612 KB Output is correct
8 Correct 31 ms 3412 KB Output is correct
9 Correct 23 ms 3540 KB Output is correct
10 Correct 24 ms 4112 KB Output is correct
11 Correct 24 ms 4112 KB Output is correct
12 Correct 31 ms 3772 KB Output is correct
13 Correct 28 ms 3540 KB Output is correct
14 Correct 13 ms 3668 KB Output is correct
15 Correct 30 ms 3788 KB Output is correct
16 Correct 19 ms 3540 KB Output is correct
17 Correct 26 ms 3616 KB Output is correct
18 Correct 22 ms 3532 KB Output is correct
19 Correct 29 ms 3896 KB Output is correct
20 Correct 27 ms 3812 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 3412 KB Output is correct
2 Correct 845 ms 75048 KB Output is correct
3 Correct 328 ms 34892 KB Output is correct
4 Correct 830 ms 74924 KB Output is correct
5 Correct 359 ms 36764 KB Output is correct
6 Correct 1709 ms 140940 KB Output is correct
7 Correct 88 ms 14028 KB Output is correct
8 Correct 1699 ms 140852 KB Output is correct
9 Correct 86 ms 14028 KB Output is correct
10 Correct 798 ms 77116 KB Output is correct
11 Correct 243 ms 29180 KB Output is correct
12 Correct 165 ms 22092 KB Output is correct
13 Correct 165 ms 22092 KB Output is correct
14 Correct 1185 ms 77876 KB Output is correct
15 Correct 1092 ms 77704 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3412 KB Output is correct
2 Correct 3 ms 3412 KB Output is correct
3 Correct 3 ms 3412 KB Output is correct
4 Correct 4 ms 3412 KB Output is correct
5 Correct 37 ms 3768 KB Output is correct
6 Correct 28 ms 3540 KB Output is correct
7 Correct 25 ms 3612 KB Output is correct
8 Correct 31 ms 3412 KB Output is correct
9 Correct 23 ms 3540 KB Output is correct
10 Correct 24 ms 4112 KB Output is correct
11 Correct 24 ms 4112 KB Output is correct
12 Correct 31 ms 3772 KB Output is correct
13 Correct 28 ms 3540 KB Output is correct
14 Correct 13 ms 3668 KB Output is correct
15 Correct 30 ms 3788 KB Output is correct
16 Correct 19 ms 3540 KB Output is correct
17 Correct 26 ms 3616 KB Output is correct
18 Correct 22 ms 3532 KB Output is correct
19 Correct 29 ms 3896 KB Output is correct
20 Correct 27 ms 3812 KB Output is correct
21 Correct 3 ms 3412 KB Output is correct
22 Correct 845 ms 75048 KB Output is correct
23 Correct 328 ms 34892 KB Output is correct
24 Correct 830 ms 74924 KB Output is correct
25 Correct 359 ms 36764 KB Output is correct
26 Correct 1709 ms 140940 KB Output is correct
27 Correct 88 ms 14028 KB Output is correct
28 Correct 1699 ms 140852 KB Output is correct
29 Correct 86 ms 14028 KB Output is correct
30 Correct 798 ms 77116 KB Output is correct
31 Correct 243 ms 29180 KB Output is correct
32 Correct 165 ms 22092 KB Output is correct
33 Correct 165 ms 22092 KB Output is correct
34 Correct 1185 ms 77876 KB Output is correct
35 Correct 1092 ms 77704 KB Output is correct
36 Correct 943 ms 78668 KB Output is correct
37 Correct 424 ms 36568 KB Output is correct
38 Correct 424 ms 36472 KB Output is correct
39 Correct 927 ms 78712 KB Output is correct
40 Correct 427 ms 36396 KB Output is correct
41 Correct 1766 ms 141648 KB Output is correct
42 Correct 1777 ms 141756 KB Output is correct
43 Correct 150 ms 15292 KB Output is correct
44 Correct 158 ms 14952 KB Output is correct
45 Correct 847 ms 73932 KB Output is correct
46 Correct 861 ms 75724 KB Output is correct
47 Correct 265 ms 26880 KB Output is correct
48 Correct 220 ms 23292 KB Output is correct
49 Correct 218 ms 23016 KB Output is correct
50 Correct 1245 ms 78736 KB Output is correct
51 Correct 1152 ms 77896 KB Output is correct
52 Correct 1230 ms 77728 KB Output is correct

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 3412 KB Output is correct
2 Correct 845 ms 75048 KB Output is correct
3 Correct 328 ms 34892 KB Output is correct
4 Correct 830 ms 74924 KB Output is correct
5 Correct 359 ms 36764 KB Output is correct
6 Correct 1709 ms 140940 KB Output is correct
7 Correct 88 ms 14028 KB Output is correct
8 Correct 1699 ms 140852 KB Output is correct
9 Correct 86 ms 14028 KB Output is correct
10 Correct 798 ms 77116 KB Output is correct
11 Correct 243 ms 29180 KB Output is correct
12 Correct 165 ms 22092 KB Output is correct
13 Correct 165 ms 22092 KB Output is correct
14 Correct 1185 ms 77876 KB Output is correct
15 Correct 1092 ms 77704 KB Output is correct
16 Correct 3 ms 3412 KB Output is correct
17 Execution timed out 4078 ms 37404 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 3412 KB Output is correct
2 Correct 845 ms 75048 KB Output is correct
3 Correct 328 ms 34892 KB Output is correct
4 Correct 830 ms 74924 KB Output is correct
5 Correct 359 ms 36764 KB Output is correct
6 Correct 1709 ms 140940 KB Output is correct
7 Correct 88 ms 14028 KB Output is correct
8 Correct 1699 ms 140852 KB Output is correct
9 Correct 86 ms 14028 KB Output is correct
10 Correct 798 ms 77116 KB Output is correct
11 Correct 243 ms 29180 KB Output is correct
12 Correct 165 ms 22092 KB Output is correct
13 Correct 165 ms 22092 KB Output is correct
14 Correct 1185 ms 77876 KB Output is correct
15 Correct 1092 ms 77704 KB Output is correct
16 Correct 4 ms 3412 KB Output is correct
17 Execution timed out 4033 ms 75456 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3412 KB Output is correct
2 Correct 3 ms 3412 KB Output is correct
3 Correct 3 ms 3412 KB Output is correct
4 Correct 4 ms 3412 KB Output is correct
5 Correct 37 ms 3768 KB Output is correct
6 Correct 28 ms 3540 KB Output is correct
7 Correct 25 ms 3612 KB Output is correct
8 Correct 31 ms 3412 KB Output is correct
9 Correct 23 ms 3540 KB Output is correct
10 Correct 24 ms 4112 KB Output is correct
11 Correct 24 ms 4112 KB Output is correct
12 Correct 31 ms 3772 KB Output is correct
13 Correct 28 ms 3540 KB Output is correct
14 Correct 13 ms 3668 KB Output is correct
15 Correct 30 ms 3788 KB Output is correct
16 Correct 19 ms 3540 KB Output is correct
17 Correct 26 ms 3616 KB Output is correct
18 Correct 22 ms 3532 KB Output is correct
19 Correct 29 ms 3896 KB Output is correct
20 Correct 27 ms 3812 KB Output is correct
21 Correct 3 ms 3412 KB Output is correct
22 Correct 845 ms 75048 KB Output is correct
23 Correct 328 ms 34892 KB Output is correct
24 Correct 830 ms 74924 KB Output is correct
25 Correct 359 ms 36764 KB Output is correct
26 Correct 1709 ms 140940 KB Output is correct
27 Correct 88 ms 14028 KB Output is correct
28 Correct 1699 ms 140852 KB Output is correct
29 Correct 86 ms 14028 KB Output is correct
30 Correct 798 ms 77116 KB Output is correct
31 Correct 243 ms 29180 KB Output is correct
32 Correct 165 ms 22092 KB Output is correct
33 Correct 165 ms 22092 KB Output is correct
34 Correct 1185 ms 77876 KB Output is correct
35 Correct 1092 ms 77704 KB Output is correct
36 Correct 943 ms 78668 KB Output is correct
37 Correct 424 ms 36568 KB Output is correct
38 Correct 424 ms 36472 KB Output is correct
39 Correct 927 ms 78712 KB Output is correct
40 Correct 427 ms 36396 KB Output is correct
41 Correct 1766 ms 141648 KB Output is correct
42 Correct 1777 ms 141756 KB Output is correct
43 Correct 150 ms 15292 KB Output is correct
44 Correct 158 ms 14952 KB Output is correct
45 Correct 847 ms 73932 KB Output is correct
46 Correct 861 ms 75724 KB Output is correct
47 Correct 265 ms 26880 KB Output is correct
48 Correct 220 ms 23292 KB Output is correct
49 Correct 218 ms 23016 KB Output is correct
50 Correct 1245 ms 78736 KB Output is correct
51 Correct 1152 ms 77896 KB Output is correct
52 Correct 1230 ms 77728 KB Output is correct
53 Correct 3 ms 3412 KB Output is correct
54 Execution timed out 4078 ms 37404 KB Time limit exceeded
55 Halted 0 ms 0 KB -