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답안 #549497

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
549497 2022-04-15T22:52:55 Z duality Fish 2 (JOI22_fish2) C++17
25 / 100
 4000 ms 141376 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")
#pragma GCC target("avx,avx2,fma")

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 << 11)) {
        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] = ((pre[u] == pre[u << 1]) ? occ[u << 1]:0)+((pre[u] == tree[u << 1]+pre[(u << 1)|1]) ? occ[(u << 1)|1]:0);
    }
    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) && (i >= (1 << 10))) 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);
            f = 1;
            update2(X,Y,1);
            f = 0;
            for (int x: all) {
                if (toadd[x] != 0) update3(x,toadd[x]),toadd[x] = 0;
            }
            all.clear();
        }
        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:171:13: warning: unused variable 'init' [-Wunused-variable]
  171 |     clock_t init = clock();
      |             ^~~~
fish2.cpp:169:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  169 |     scanf("%d",&N);
      |     ~~~~~^~~~~~~~~
fish2.cpp:172:35: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  172 |     for (i = 1; i <= N; i++) scanf("%d",&A[i]);
      |                              ~~~~~^~~~~~~~~~~~
fish2.cpp:193:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  193 |     scanf("%d",&Q);
      |     ~~~~~^~~~~~~~~
fish2.cpp:195:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  195 |         scanf("%d",&T);
      |         ~~~~~^~~~~~~~~
fish2.cpp:199:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  199 |             scanf("%d %d",&X,&Y);
      |             ~~~~~^~~~~~~~~~~~~~~
fish2.cpp:209:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  209 |             scanf("%d %d",&L,&R);
      |             ~~~~~^~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 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 4 ms 3412 KB Output is correct
5 Correct 18 ms 3668 KB Output is correct
6 Correct 24 ms 3644 KB Output is correct
7 Correct 14 ms 3624 KB Output is correct
8 Correct 17 ms 3520 KB Output is correct
9 Correct 20 ms 3540 KB Output is correct
10 Correct 17 ms 4080 KB Output is correct
11 Correct 23 ms 4052 KB Output is correct
12 Correct 16 ms 3760 KB Output is correct
13 Correct 28 ms 3580 KB Output is correct
14 Correct 14 ms 3784 KB Output is correct
15 Correct 20 ms 3772 KB Output is correct
16 Correct 18 ms 3556 KB Output is correct
17 Correct 16 ms 3668 KB Output is correct
18 Correct 21 ms 3540 KB Output is correct
19 Correct 17 ms 3924 KB Output is correct
20 Correct 20 ms 3812 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 3388 KB Output is correct
2 Correct 842 ms 74624 KB Output is correct
3 Correct 306 ms 34712 KB Output is correct
4 Correct 852 ms 74720 KB Output is correct
5 Correct 361 ms 36436 KB Output is correct
6 Correct 1579 ms 140552 KB Output is correct
7 Correct 78 ms 13940 KB Output is correct
8 Correct 1606 ms 140420 KB Output is correct
9 Correct 79 ms 13932 KB Output is correct
10 Correct 825 ms 76628 KB Output is correct
11 Correct 241 ms 29076 KB Output is correct
12 Correct 155 ms 22040 KB Output is correct
13 Correct 142 ms 21852 KB Output is correct
14 Correct 920 ms 77344 KB Output is correct
15 Correct 980 ms 77440 KB Output is correct

Subtask #3
12.0 / 12.0

# 결과 실행 시간 메모리 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 4 ms 3412 KB Output is correct
5 Correct 18 ms 3668 KB Output is correct
6 Correct 24 ms 3644 KB Output is correct
7 Correct 14 ms 3624 KB Output is correct
8 Correct 17 ms 3520 KB Output is correct
9 Correct 20 ms 3540 KB Output is correct
10 Correct 17 ms 4080 KB Output is correct
11 Correct 23 ms 4052 KB Output is correct
12 Correct 16 ms 3760 KB Output is correct
13 Correct 28 ms 3580 KB Output is correct
14 Correct 14 ms 3784 KB Output is correct
15 Correct 20 ms 3772 KB Output is correct
16 Correct 18 ms 3556 KB Output is correct
17 Correct 16 ms 3668 KB Output is correct
18 Correct 21 ms 3540 KB Output is correct
19 Correct 17 ms 3924 KB Output is correct
20 Correct 20 ms 3812 KB Output is correct
21 Correct 3 ms 3388 KB Output is correct
22 Correct 842 ms 74624 KB Output is correct
23 Correct 306 ms 34712 KB Output is correct
24 Correct 852 ms 74720 KB Output is correct
25 Correct 361 ms 36436 KB Output is correct
26 Correct 1579 ms 140552 KB Output is correct
27 Correct 78 ms 13940 KB Output is correct
28 Correct 1606 ms 140420 KB Output is correct
29 Correct 79 ms 13932 KB Output is correct
30 Correct 825 ms 76628 KB Output is correct
31 Correct 241 ms 29076 KB Output is correct
32 Correct 155 ms 22040 KB Output is correct
33 Correct 142 ms 21852 KB Output is correct
34 Correct 920 ms 77344 KB Output is correct
35 Correct 980 ms 77440 KB Output is correct
36 Correct 958 ms 78432 KB Output is correct
37 Correct 420 ms 36408 KB Output is correct
38 Correct 416 ms 36392 KB Output is correct
39 Correct 920 ms 78412 KB Output is correct
40 Correct 480 ms 36064 KB Output is correct
41 Correct 1642 ms 141376 KB Output is correct
42 Correct 1666 ms 141212 KB Output is correct
43 Correct 142 ms 15052 KB Output is correct
44 Correct 154 ms 14812 KB Output is correct
45 Correct 865 ms 73752 KB Output is correct
46 Correct 907 ms 75552 KB Output is correct
47 Correct 273 ms 26664 KB Output is correct
48 Correct 188 ms 23092 KB Output is correct
49 Correct 198 ms 22696 KB Output is correct
50 Correct 982 ms 78340 KB Output is correct
51 Correct 1006 ms 77804 KB Output is correct
52 Correct 1002 ms 77560 KB Output is correct

Subtask #4
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 3388 KB Output is correct
2 Correct 842 ms 74624 KB Output is correct
3 Correct 306 ms 34712 KB Output is correct
4 Correct 852 ms 74720 KB Output is correct
5 Correct 361 ms 36436 KB Output is correct
6 Correct 1579 ms 140552 KB Output is correct
7 Correct 78 ms 13940 KB Output is correct
8 Correct 1606 ms 140420 KB Output is correct
9 Correct 79 ms 13932 KB Output is correct
10 Correct 825 ms 76628 KB Output is correct
11 Correct 241 ms 29076 KB Output is correct
12 Correct 155 ms 22040 KB Output is correct
13 Correct 142 ms 21852 KB Output is correct
14 Correct 920 ms 77344 KB Output is correct
15 Correct 980 ms 77440 KB Output is correct
16 Correct 3 ms 3412 KB Output is correct
17 Execution timed out 4085 ms 36640 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 3388 KB Output is correct
2 Correct 842 ms 74624 KB Output is correct
3 Correct 306 ms 34712 KB Output is correct
4 Correct 852 ms 74720 KB Output is correct
5 Correct 361 ms 36436 KB Output is correct
6 Correct 1579 ms 140552 KB Output is correct
7 Correct 78 ms 13940 KB Output is correct
8 Correct 1606 ms 140420 KB Output is correct
9 Correct 79 ms 13932 KB Output is correct
10 Correct 825 ms 76628 KB Output is correct
11 Correct 241 ms 29076 KB Output is correct
12 Correct 155 ms 22040 KB Output is correct
13 Correct 142 ms 21852 KB Output is correct
14 Correct 920 ms 77344 KB Output is correct
15 Correct 980 ms 77440 KB Output is correct
16 Correct 3 ms 3412 KB Output is correct
17 Correct 3764 ms 75336 KB Output is correct
18 Execution timed out 4059 ms 96536 KB Time limit exceeded
19 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# 결과 실행 시간 메모리 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 4 ms 3412 KB Output is correct
5 Correct 18 ms 3668 KB Output is correct
6 Correct 24 ms 3644 KB Output is correct
7 Correct 14 ms 3624 KB Output is correct
8 Correct 17 ms 3520 KB Output is correct
9 Correct 20 ms 3540 KB Output is correct
10 Correct 17 ms 4080 KB Output is correct
11 Correct 23 ms 4052 KB Output is correct
12 Correct 16 ms 3760 KB Output is correct
13 Correct 28 ms 3580 KB Output is correct
14 Correct 14 ms 3784 KB Output is correct
15 Correct 20 ms 3772 KB Output is correct
16 Correct 18 ms 3556 KB Output is correct
17 Correct 16 ms 3668 KB Output is correct
18 Correct 21 ms 3540 KB Output is correct
19 Correct 17 ms 3924 KB Output is correct
20 Correct 20 ms 3812 KB Output is correct
21 Correct 3 ms 3388 KB Output is correct
22 Correct 842 ms 74624 KB Output is correct
23 Correct 306 ms 34712 KB Output is correct
24 Correct 852 ms 74720 KB Output is correct
25 Correct 361 ms 36436 KB Output is correct
26 Correct 1579 ms 140552 KB Output is correct
27 Correct 78 ms 13940 KB Output is correct
28 Correct 1606 ms 140420 KB Output is correct
29 Correct 79 ms 13932 KB Output is correct
30 Correct 825 ms 76628 KB Output is correct
31 Correct 241 ms 29076 KB Output is correct
32 Correct 155 ms 22040 KB Output is correct
33 Correct 142 ms 21852 KB Output is correct
34 Correct 920 ms 77344 KB Output is correct
35 Correct 980 ms 77440 KB Output is correct
36 Correct 958 ms 78432 KB Output is correct
37 Correct 420 ms 36408 KB Output is correct
38 Correct 416 ms 36392 KB Output is correct
39 Correct 920 ms 78412 KB Output is correct
40 Correct 480 ms 36064 KB Output is correct
41 Correct 1642 ms 141376 KB Output is correct
42 Correct 1666 ms 141212 KB Output is correct
43 Correct 142 ms 15052 KB Output is correct
44 Correct 154 ms 14812 KB Output is correct
45 Correct 865 ms 73752 KB Output is correct
46 Correct 907 ms 75552 KB Output is correct
47 Correct 273 ms 26664 KB Output is correct
48 Correct 188 ms 23092 KB Output is correct
49 Correct 198 ms 22696 KB Output is correct
50 Correct 982 ms 78340 KB Output is correct
51 Correct 1006 ms 77804 KB Output is correct
52 Correct 1002 ms 77560 KB Output is correct
53 Correct 3 ms 3412 KB Output is correct
54 Execution timed out 4085 ms 36640 KB Time limit exceeded
55 Halted 0 ms 0 KB -