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답안 #433204

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
433204 2021-06-19T08:03:57 Z qwerasdfzxcl 역사적 조사 (JOI14_historical) C++14
100 / 100
 1758 ms 5664 KB 
#include <bits/stdc++.h>

typedef long long ll;
using namespace std;
const int BUCKET = 320;
struct Query{
    int s, e, x;
    Query(){}
    Query(int _s, int _e, int _x): s(_s), e(_e), x(_x) {}
    bool operator<(const Query &Q) const{
        if (s/BUCKET==Q.s/BUCKET) return e<Q.e;
        return s/BUCKET<Q.s/BUCKET;
    }
}query[100100];
int a[100100], idx[100100];
ll ans[100100];
vector<int> v;
struct Seg{
    ll tree[200200];
    int sz;
    void init(int n) {sz=n;}
    void update(int p, int val){
        for (tree[p+=sz]+=val;p>1;p>>=1) tree[p>>1] = max(tree[p], tree[p^1]);
    }
    ll query(int l){
        int r = sz;
        ll ret = 0;
        for (l +=sz, r += sz;l<r;l>>=1, r>>=1){
            if (l&1) ret = max(ret, tree[l++]);
            if (r&1) ret = max(tree[--r], ret);
        }
        return ret;
    }
}tree;

int main(){
    int n, q;
    scanf("%d %d", &n, &q);
    for (int i=0;i<n;i++){
        scanf("%d", a+i);
        v.push_back(a[i]);
    }
    sort(v.begin(), v.end());
    v.erase(unique(v.begin(), v.end()), v.end());
    for (int i=0;i<n;i++) idx[i] = lower_bound(v.begin(), v.end(), a[i])-v.begin();
    for (int i=0;i<q;i++){
        scanf("%d %d", &query[i].s, &query[i].e);
        query[i].s--;
        query[i].x = i;
    }
    sort(query, query+q);
    tree.init((int)v.size());
    int s = 0, e = 0;
    for (int i=0;i<q;i++){
        //printf("%d %d %d\n", query[i].s, query[i].e, query[i].x);
        while(e<query[i].e){
            tree.update(idx[e], v[idx[e]]);
            e++;
        }
        while(s>query[i].s){
            --s;
            tree.update(idx[s], v[idx[s]]);
        }
        while(e>query[i].e){
            --e;
            tree.update(idx[e], -v[idx[e]]);
        }
        while(s<query[i].s){
            tree.update(idx[s], -v[idx[s]]);
            s++;
        }
        ans[query[i].x] = tree.query(0);
    }
    for (int i=0;i<q;i++) printf("%lld\n", ans[i]);
    return 0;
}

Compilation message

historic.cpp: In function 'int main()':
historic.cpp:38:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |     scanf("%d %d", &n, &q);
      |     ~~~~~^~~~~~~~~~~~~~~~~
historic.cpp:40:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |         scanf("%d", a+i);
      |         ~~~~~^~~~~~~~~~~
historic.cpp:47:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   47 |         scanf("%d %d", &query[i].s, &query[i].e);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 312 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 2 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 312 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 2 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 2 ms 332 KB Output is correct
19 Correct 4 ms 332 KB Output is correct
20 Correct 8 ms 460 KB Output is correct
21 Correct 12 ms 556 KB Output is correct
22 Correct 12 ms 588 KB Output is correct
23 Correct 11 ms 460 KB Output is correct
24 Correct 11 ms 460 KB Output is correct
25 Correct 16 ms 584 KB Output is correct
26 Correct 17 ms 588 KB Output is correct
27 Correct 17 ms 592 KB Output is correct
28 Correct 16 ms 592 KB Output is correct
29 Correct 16 ms 588 KB Output is correct
30 Correct 15 ms 588 KB Output is correct
31 Correct 11 ms 588 KB Output is correct
32 Correct 8 ms 588 KB Output is correct
33 Correct 15 ms 580 KB Output is correct
34 Correct 19 ms 600 KB Output is correct
35 Correct 17 ms 604 KB Output is correct

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 2 ms 324 KB Output is correct
6 Correct 2 ms 332 KB Output is correct
7 Correct 3 ms 460 KB Output is correct
8 Correct 5 ms 588 KB Output is correct
9 Correct 10 ms 912 KB Output is correct
10 Correct 12 ms 1080 KB Output is correct
11 Correct 61 ms 3852 KB Output is correct
12 Correct 28 ms 1640 KB Output is correct
13 Correct 46 ms 2380 KB Output is correct
14 Correct 68 ms 3684 KB Output is correct
15 Correct 95 ms 5528 KB Output is correct
16 Correct 67 ms 4660 KB Output is correct
17 Correct 38 ms 2364 KB Output is correct
18 Correct 55 ms 3704 KB Output is correct
19 Correct 62 ms 5560 KB Output is correct
20 Correct 33 ms 3712 KB Output is correct

Subtask #4
60.0 / 60.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 312 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 2 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 2 ms 332 KB Output is correct
19 Correct 4 ms 332 KB Output is correct
20 Correct 8 ms 460 KB Output is correct
21 Correct 12 ms 556 KB Output is correct
22 Correct 12 ms 588 KB Output is correct
23 Correct 11 ms 460 KB Output is correct
24 Correct 11 ms 460 KB Output is correct
25 Correct 16 ms 584 KB Output is correct
26 Correct 17 ms 588 KB Output is correct
27 Correct 17 ms 592 KB Output is correct
28 Correct 16 ms 592 KB Output is correct
29 Correct 16 ms 588 KB Output is correct
30 Correct 15 ms 588 KB Output is correct
31 Correct 11 ms 588 KB Output is correct
32 Correct 8 ms 588 KB Output is correct
33 Correct 15 ms 580 KB Output is correct
34 Correct 19 ms 600 KB Output is correct
35 Correct 17 ms 604 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 2 ms 324 KB Output is correct
41 Correct 2 ms 332 KB Output is correct
42 Correct 3 ms 460 KB Output is correct
43 Correct 5 ms 588 KB Output is correct
44 Correct 10 ms 912 KB Output is correct
45 Correct 12 ms 1080 KB Output is correct
46 Correct 61 ms 3852 KB Output is correct
47 Correct 28 ms 1640 KB Output is correct
48 Correct 46 ms 2380 KB Output is correct
49 Correct 68 ms 3684 KB Output is correct
50 Correct 95 ms 5528 KB Output is correct
51 Correct 67 ms 4660 KB Output is correct
52 Correct 38 ms 2364 KB Output is correct
53 Correct 55 ms 3704 KB Output is correct
54 Correct 62 ms 5560 KB Output is correct
55 Correct 33 ms 3712 KB Output is correct
56 Correct 32 ms 836 KB Output is correct
57 Correct 76 ms 1296 KB Output is correct
58 Correct 175 ms 1672 KB Output is correct
59 Correct 321 ms 2284 KB Output is correct
60 Correct 402 ms 2752 KB Output is correct
61 Correct 503 ms 3112 KB Output is correct
62 Correct 429 ms 3496 KB Output is correct
63 Correct 400 ms 4156 KB Output is correct
64 Correct 329 ms 4616 KB Output is correct
65 Correct 257 ms 4792 KB Output is correct
66 Correct 566 ms 4920 KB Output is correct
67 Correct 764 ms 4788 KB Output is correct
68 Correct 1193 ms 4880 KB Output is correct
69 Correct 1560 ms 5284 KB Output is correct
70 Correct 1691 ms 5664 KB Output is correct
71 Correct 1758 ms 5464 KB Output is correct
72 Correct 1728 ms 5452 KB Output is correct
73 Correct 1583 ms 5344 KB Output is correct
74 Correct 1531 ms 5296 KB Output is correct
75 Correct 1493 ms 5272 KB Output is correct
76 Correct 1532 ms 5224 KB Output is correct
77 Correct 1504 ms 5192 KB Output is correct
78 Correct 1490 ms 5180 KB Output is correct
79 Correct 1468 ms 5156 KB Output is correct
80 Correct 230 ms 5168 KB Output is correct