oj.uz

답안 #393683

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
393683 2021-04-24T08:44:41 Z 79brue Fire (JOI20_ho_t5) C++14
100 / 100
 462 ms 50684 KB 
#include <bits/stdc++.h>
//#pragma GCC optimize("O3")
//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("unroll-loops")

using namespace std;

typedef long long ll;

struct Query{
    int l, r, idx;
    Query(){}
    Query(int l, int r, int idx): l(l), r(r), idx(idx){}
};

struct maxSegmentTree{
    ll tree[800002];
    void init(int i, int l, int r, ll A[]){
        if(l==r){
            tree[i] = A[l];
            return;
        }
        int m = (l+r)>>1;
        init(i*2, l, m, A);
        init(i*2+1, m+1, r, A);
        tree[i] = max(tree[i*2], tree[i*2+1]);
    }

    int biggerLim(int i, int l, int r, int x, ll lim, int dir){ /// bigger than lim / dir=0: left, dir=1: right
        if(tree[i] <= lim) return dir==0 ? l-1 : r+1;
        if(l==r) return l;
        int m = (l+r)>>1;
        if(dir == 0){
            if(x<=m) return biggerLim(i*2, l, m, x, lim, dir);
            int tmp = biggerLim(i*2+1, m+1, r, x, lim, dir);
            if(tmp > m) return tmp;
            return biggerLim(i*2, l, m, x, lim, dir);
        }
        else{
            if(m<x) return biggerLim(i*2+1, m+1, r, x, lim, dir);
            int tmp = biggerLim(i*2, l, m, x, lim, dir);
            if(tmp <= m) return tmp;
            return biggerLim(i*2+1, m+1, r, x, lim, dir);
        }
    }
} maxSeg;

struct lazySegmentTree{
    struct Fenwick{
        int n;
        ll tree[400002];
        void addRange(int x, ll y){
            while(x){
                tree[x] += y;
                x -= x&-x;
            }
        }

        ll rangeSum(int x){
            ll ret = 0;
            while(x<=n){
                ret += tree[x];
                x += x&-x;
            }
            return ret;
        }
    } mul, add;
    int n;

    void init(int _n){
        mul.n = add.n = n = _n;
    }

    void addRange(int x, ll y){
        x = min(x, n);
        mul.addRange(x, y);
        add.addRange(n, y*x);
        add.addRange(x, -y*x);
    }

    inline ll rangeSum(int x){
        if(x<=0) return 0;
        return mul.rangeSum(x) * x + add.rangeSum(x);
    }

    inline ll rangeSum(int l, int r){
        return rangeSum(r) - rangeSum(l-1);
    }
} segRight, segDiag;

int n, q;
ll arr[200002];
vector<Query> query[200005];
ll ans[200002];
vector<pair<int, ll> > triangle[200005];

void input();
void makeTriangles();
void sweep();

int main(){
    input();
    makeTriangles();
    sweep();
    for(int i=1; i<=q; i++) printf("%lld\n", ans[i]);
}

void input(){
    scanf("%d %d", &n, &q);
    for(int i=1; i<=n; i++){
        scanf("%lld", &arr[i]);
    }
    for(int i=1; i<=q; i++){
        int t, l, r;
        scanf("%d %d %d", &t, &l, &r);
        query[t+1].push_back(Query(l, r, i));
    }
}

void makeTriangles(){
    maxSeg.init(1, 1, n, arr);
    for(int i=1; i<=n; i++){
        triangle[1].push_back(make_pair(i, arr[i]));
        int rLim = maxSeg.biggerLim(1, 1, n, i+1, arr[i]-1, 1);
        if(i<n && rLim <= n && 1<=rLim-i+1 && rLim-i+1<=n+1)
            triangle[rLim-i+1].push_back(make_pair(rLim, -arr[i]));

        int lLim = maxSeg.biggerLim(1, 1, n, i-1, arr[i], 0);
        if(i>1 && lLim >= 1 && 1<=i-lLim+1 && i-lLim+1<=n+1)
            triangle[i-lLim+1].push_back(make_pair(i, -arr[i]));

        if(i<n && i>1 && rLim <= n && lLim >= 1 &&
           1<=(rLim - i + 1) + (i - lLim + 1) - 1 && (rLim - i + 1) + (i - lLim + 1) - 1 <= n+1){
            triangle[(rLim - i + 1) + (i - lLim + 1) - 1].push_back(make_pair(rLim, arr[i]));
        }
    }
}

void sweep(){
    segRight.init(n);
    segDiag.init(2*n+1);

    for(int i=1; i<=n+1; i++){
        for(auto pr: triangle[i]){
            segRight.addRange(pr.first - 1, -pr.second);
            segDiag.addRange((n+1) + pr.first - i, pr.second);
        }

        for(auto qr: query[i]){
            ans[qr.idx] += segRight.rangeSum(qr.l, qr.r);
            ans[qr.idx] += segDiag.rangeSum((n+1) + qr.l - i, (n+1) + qr.r - i);
        }
    }
}

Compilation message

ho_t5.cpp: In function 'void input()':
ho_t5.cpp:109:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  109 |     scanf("%d %d", &n, &q);
      |     ~~~~~^~~~~~~~~~~~~~~~~
ho_t5.cpp:111:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  111 |         scanf("%lld", &arr[i]);
      |         ~~~~~^~~~~~~~~~~~~~~~~
ho_t5.cpp:115:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  115 |         scanf("%d %d %d", &t, &l, &r);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
1.0 / 1.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 9744 KB Output is correct
2 Correct 7 ms 9676 KB Output is correct
3 Correct 8 ms 9776 KB Output is correct
4 Correct 8 ms 9680 KB Output is correct
5 Correct 7 ms 9676 KB Output is correct
6 Correct 7 ms 9676 KB Output is correct
7 Correct 6 ms 9760 KB Output is correct
8 Correct 7 ms 9740 KB Output is correct
9 Correct 7 ms 9676 KB Output is correct
10 Correct 6 ms 9680 KB Output is correct
11 Correct 6 ms 9672 KB Output is correct
12 Correct 7 ms 9756 KB Output is correct
13 Correct 7 ms 9676 KB Output is correct
14 Correct 7 ms 9704 KB Output is correct
15 Correct 6 ms 9676 KB Output is correct
16 Correct 7 ms 9676 KB Output is correct
17 Correct 6 ms 9676 KB Output is correct
18 Correct 6 ms 9676 KB Output is correct
19 Correct 7 ms 9676 KB Output is correct
20 Correct 6 ms 9676 KB Output is correct
21 Correct 7 ms 9676 KB Output is correct
22 Correct 7 ms 9776 KB Output is correct
23 Correct 7 ms 9676 KB Output is correct
24 Correct 6 ms 9676 KB Output is correct
25 Correct 7 ms 9676 KB Output is correct
26 Correct 7 ms 9676 KB Output is correct
27 Correct 6 ms 9692 KB Output is correct
28 Correct 6 ms 9676 KB Output is correct
29 Correct 6 ms 9676 KB Output is correct
30 Correct 6 ms 9676 KB Output is correct
31 Correct 7 ms 9676 KB Output is correct
32 Correct 7 ms 9676 KB Output is correct

Subtask #2
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 9744 KB Output is correct
2 Correct 332 ms 42072 KB Output is correct
3 Correct 311 ms 47080 KB Output is correct
4 Correct 328 ms 48052 KB Output is correct
5 Correct 317 ms 48808 KB Output is correct
6 Correct 348 ms 47644 KB Output is correct
7 Correct 337 ms 47476 KB Output is correct
8 Correct 323 ms 49172 KB Output is correct
9 Correct 362 ms 49180 KB Output is correct
10 Correct 316 ms 46904 KB Output is correct
11 Correct 310 ms 49560 KB Output is correct
12 Correct 322 ms 47596 KB Output is correct
13 Correct 326 ms 49240 KB Output is correct
14 Correct 310 ms 48780 KB Output is correct
15 Correct 311 ms 49032 KB Output is correct
16 Correct 343 ms 47952 KB Output is correct

Subtask #3
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 9744 KB Output is correct
2 Correct 393 ms 42688 KB Output is correct
3 Correct 373 ms 42332 KB Output is correct
4 Correct 381 ms 44160 KB Output is correct
5 Correct 384 ms 47956 KB Output is correct
6 Correct 383 ms 48332 KB Output is correct
7 Correct 375 ms 48224 KB Output is correct
8 Correct 425 ms 48352 KB Output is correct
9 Correct 425 ms 47920 KB Output is correct
10 Correct 413 ms 47684 KB Output is correct
11 Correct 404 ms 49796 KB Output is correct
12 Correct 397 ms 49568 KB Output is correct
13 Correct 462 ms 49580 KB Output is correct
14 Correct 402 ms 47948 KB Output is correct
15 Correct 363 ms 49692 KB Output is correct
16 Correct 361 ms 49476 KB Output is correct

Subtask #4
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 348 ms 38080 KB Output is correct
2 Correct 339 ms 39836 KB Output is correct
3 Correct 331 ms 40480 KB Output is correct
4 Correct 330 ms 38540 KB Output is correct
5 Correct 329 ms 40052 KB Output is correct
6 Correct 329 ms 38948 KB Output is correct
7 Correct 338 ms 39060 KB Output is correct
8 Correct 345 ms 39712 KB Output is correct
9 Correct 337 ms 38476 KB Output is correct
10 Correct 350 ms 38540 KB Output is correct
11 Correct 337 ms 38788 KB Output is correct
12 Correct 341 ms 40036 KB Output is correct
13 Correct 332 ms 38772 KB Output is correct
14 Correct 332 ms 39880 KB Output is correct

Subtask #5
80.0 / 80.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 9744 KB Output is correct
2 Correct 7 ms 9676 KB Output is correct
3 Correct 8 ms 9776 KB Output is correct
4 Correct 8 ms 9680 KB Output is correct
5 Correct 7 ms 9676 KB Output is correct
6 Correct 7 ms 9676 KB Output is correct
7 Correct 6 ms 9760 KB Output is correct
8 Correct 7 ms 9740 KB Output is correct
9 Correct 7 ms 9676 KB Output is correct
10 Correct 6 ms 9680 KB Output is correct
11 Correct 6 ms 9672 KB Output is correct
12 Correct 7 ms 9756 KB Output is correct
13 Correct 7 ms 9676 KB Output is correct
14 Correct 7 ms 9704 KB Output is correct
15 Correct 6 ms 9676 KB Output is correct
16 Correct 7 ms 9676 KB Output is correct
17 Correct 6 ms 9676 KB Output is correct
18 Correct 6 ms 9676 KB Output is correct
19 Correct 7 ms 9676 KB Output is correct
20 Correct 6 ms 9676 KB Output is correct
21 Correct 7 ms 9676 KB Output is correct
22 Correct 7 ms 9776 KB Output is correct
23 Correct 7 ms 9676 KB Output is correct
24 Correct 6 ms 9676 KB Output is correct
25 Correct 7 ms 9676 KB Output is correct
26 Correct 7 ms 9676 KB Output is correct
27 Correct 6 ms 9692 KB Output is correct
28 Correct 6 ms 9676 KB Output is correct
29 Correct 6 ms 9676 KB Output is correct
30 Correct 6 ms 9676 KB Output is correct
31 Correct 7 ms 9676 KB Output is correct
32 Correct 7 ms 9676 KB Output is correct
33 Correct 332 ms 42072 KB Output is correct
34 Correct 311 ms 47080 KB Output is correct
35 Correct 328 ms 48052 KB Output is correct
36 Correct 317 ms 48808 KB Output is correct
37 Correct 348 ms 47644 KB Output is correct
38 Correct 337 ms 47476 KB Output is correct
39 Correct 323 ms 49172 KB Output is correct
40 Correct 362 ms 49180 KB Output is correct
41 Correct 316 ms 46904 KB Output is correct
42 Correct 310 ms 49560 KB Output is correct
43 Correct 322 ms 47596 KB Output is correct
44 Correct 326 ms 49240 KB Output is correct
45 Correct 310 ms 48780 KB Output is correct
46 Correct 311 ms 49032 KB Output is correct
47 Correct 343 ms 47952 KB Output is correct
48 Correct 393 ms 42688 KB Output is correct
49 Correct 373 ms 42332 KB Output is correct
50 Correct 381 ms 44160 KB Output is correct
51 Correct 384 ms 47956 KB Output is correct
52 Correct 383 ms 48332 KB Output is correct
53 Correct 375 ms 48224 KB Output is correct
54 Correct 425 ms 48352 KB Output is correct
55 Correct 425 ms 47920 KB Output is correct
56 Correct 413 ms 47684 KB Output is correct
57 Correct 404 ms 49796 KB Output is correct
58 Correct 397 ms 49568 KB Output is correct
59 Correct 462 ms 49580 KB Output is correct
60 Correct 402 ms 47948 KB Output is correct
61 Correct 363 ms 49692 KB Output is correct
62 Correct 361 ms 49476 KB Output is correct
63 Correct 348 ms 38080 KB Output is correct
64 Correct 339 ms 39836 KB Output is correct
65 Correct 331 ms 40480 KB Output is correct
66 Correct 330 ms 38540 KB Output is correct
67 Correct 329 ms 40052 KB Output is correct
68 Correct 329 ms 38948 KB Output is correct
69 Correct 338 ms 39060 KB Output is correct
70 Correct 345 ms 39712 KB Output is correct
71 Correct 337 ms 38476 KB Output is correct
72 Correct 350 ms 38540 KB Output is correct
73 Correct 337 ms 38788 KB Output is correct
74 Correct 341 ms 40036 KB Output is correct
75 Correct 332 ms 38772 KB Output is correct
76 Correct 332 ms 39880 KB Output is correct
77 Correct 398 ms 49208 KB Output is correct
78 Correct 422 ms 49664 KB Output is correct
79 Correct 374 ms 50408 KB Output is correct
80 Correct 383 ms 49112 KB Output is correct
81 Correct 380 ms 48956 KB Output is correct
82 Correct 422 ms 50504 KB Output is correct
83 Correct 401 ms 49168 KB Output is correct
84 Correct 389 ms 48920 KB Output is correct
85 Correct 382 ms 50400 KB Output is correct
86 Correct 394 ms 49252 KB Output is correct
87 Correct 341 ms 50684 KB Output is correct
88 Correct 341 ms 50328 KB Output is correct
89 Correct 350 ms 48512 KB Output is correct
90 Correct 347 ms 50072 KB Output is correct
91 Correct 367 ms 48556 KB Output is correct
92 Correct 332 ms 48296 KB Output is correct
93 Correct 358 ms 48568 KB Output is correct
94 Correct 350 ms 50436 KB Output is correct
95 Correct 360 ms 50304 KB Output is correct
96 Correct 343 ms 48800 KB Output is correct
97 Correct 366 ms 49004 KB Output is correct
98 Correct 358 ms 48308 KB Output is correct
99 Correct 371 ms 49692 KB Output is correct
100 Correct 395 ms 49652 KB Output is correct
101 Correct 374 ms 48336 KB Output is correct
102 Correct 363 ms 50024 KB Output is correct