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Submission #599070

# Submission time Handle Problem Language Result Execution time Memory
599070 2022-07-19T09:52:11 Z hibiki Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++11
100 / 100
 1748 ms 88756 KB 
#include<bits/stdc++.h>
using namespace std;

#define pb push_back
#define f first
#define s second

int n,m;
int a[1000005], ans[1000005];
stack<int> s;
vector<pair<pair<int, int>, pair<int,int> > > que;

struct node
{
    int mx = 0;
    node *l, *r;
} *root;

node* build(int l, int r)
{
    node *ptr = new node();
    if(l == r) return ptr;
    int mid = (l + r) >> 1;
    ptr->l = build(l, mid);
    ptr->r = build(mid + 1, r);
    return ptr;
}

node* build()
{
    return build(0, n - 1);
}

void update(node *ptr, int l, int r, int po, int val)
{
    ptr->mx = max(ptr->mx, val);
    if(l == r) return ;
    int mid = (l + r) >> 1;
    if(po <= mid) update(ptr->l, l, mid, po, val);
    else update(ptr->r, mid + 1, r, po, val);
}

void update(int po, int val)
{
    update(root, 0, n - 1, po, val);
}

int query(node *ptr, int l, int r, int ll, int rr)
{
    if(ll <= l && r <= rr) return ptr->mx;
    if(rr < l || r < ll) return 0;
    int mid = (l + r) >> 1;
    return max(query(ptr->l, l, mid, ll, rr), query(ptr->r, mid + 1, r, ll, rr));
}

int query(int ll, int rr)
{
    return query(root, 0, n - 1, ll, rr);
}

int main()
{
    scanf("%d %d",&n,&m);
    root = build();
    for(int i = 0; i < n; i++)
    {
        scanf("%d",&a[i]);
    }
    for(int i = 0; i < m ; i++)
    {
        int a, b, c;
        scanf("%d %d %d",&a,&b,&c);
        que.pb({{b - 1, a - 1}, {c, i}});
    }
    sort(que.begin(), que.end());
    int cur = 0;
    for(int i = 0; i < n; i++)
    {
        while(!s.empty() && a[s.top()] <= a[i])
            s.pop();
        if(!s.empty())
            update(s.top(), a[s.top()] + a[i]);
        s.push(i);
        while(cur < m && que[cur].f.f == i)
        {
            ans[que[cur].s.s] = (query(que[cur].f.s, que[cur].f.f) <= que[cur].s.f)? 1:0;
            cur++;
        }
    }
    for(int i = 0; i < m; i++)
        printf("%d\n", ans[i]);
    return 0;
}

Compilation message

sortbooks.cpp: In function 'int main()':
sortbooks.cpp:63:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   63 |     scanf("%d %d",&n,&m);
      |     ~~~~~^~~~~~~~~~~~~~~
sortbooks.cpp:67:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   67 |         scanf("%d",&a[i]);
      |         ~~~~~^~~~~~~~~~~~
sortbooks.cpp:72:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   72 |         scanf("%d %d %d",&a,&b,&c);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 312 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 312 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 3 ms 596 KB Output is correct
12 Correct 4 ms 852 KB Output is correct
13 Correct 6 ms 852 KB Output is correct
14 Correct 8 ms 1012 KB Output is correct
15 Correct 6 ms 952 KB Output is correct
16 Correct 4 ms 980 KB Output is correct
17 Correct 4 ms 808 KB Output is correct
18 Correct 4 ms 852 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1481 ms 88612 KB Output is correct
2 Correct 1451 ms 88656 KB Output is correct
3 Correct 1411 ms 88484 KB Output is correct
4 Correct 1426 ms 88604 KB Output is correct
5 Correct 1384 ms 88524 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 99 ms 9696 KB Output is correct
2 Correct 97 ms 9812 KB Output is correct
3 Correct 90 ms 9776 KB Output is correct
4 Correct 89 ms 9808 KB Output is correct
5 Correct 90 ms 9872 KB Output is correct
6 Correct 80 ms 9808 KB Output is correct
7 Correct 82 ms 9864 KB Output is correct
8 Correct 80 ms 9880 KB Output is correct
9 Correct 46 ms 3204 KB Output is correct
10 Correct 82 ms 9824 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 312 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 3 ms 596 KB Output is correct
12 Correct 4 ms 852 KB Output is correct
13 Correct 6 ms 852 KB Output is correct
14 Correct 8 ms 1012 KB Output is correct
15 Correct 6 ms 952 KB Output is correct
16 Correct 4 ms 980 KB Output is correct
17 Correct 4 ms 808 KB Output is correct
18 Correct 4 ms 852 KB Output is correct
19 Correct 243 ms 18948 KB Output is correct
20 Correct 229 ms 18688 KB Output is correct
21 Correct 202 ms 18604 KB Output is correct
22 Correct 194 ms 18692 KB Output is correct
23 Correct 213 ms 18756 KB Output is correct
24 Correct 189 ms 18608 KB Output is correct
25 Correct 176 ms 18652 KB Output is correct
26 Correct 187 ms 18688 KB Output is correct
27 Correct 189 ms 18636 KB Output is correct
28 Correct 192 ms 18608 KB Output is correct
29 Correct 204 ms 18708 KB Output is correct
30 Correct 219 ms 18696 KB Output is correct
31 Correct 207 ms 18672 KB Output is correct
32 Correct 219 ms 18596 KB Output is correct
33 Correct 211 ms 18688 KB Output is correct
34 Correct 173 ms 18640 KB Output is correct
35 Correct 189 ms 18624 KB Output is correct
36 Correct 170 ms 18580 KB Output is correct
37 Correct 172 ms 18668 KB Output is correct
38 Correct 176 ms 18600 KB Output is correct
39 Correct 175 ms 18672 KB Output is correct
40 Correct 141 ms 14040 KB Output is correct
41 Correct 173 ms 18676 KB Output is correct

Subtask #6
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 312 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 3 ms 596 KB Output is correct
12 Correct 4 ms 852 KB Output is correct
13 Correct 6 ms 852 KB Output is correct
14 Correct 8 ms 1012 KB Output is correct
15 Correct 6 ms 952 KB Output is correct
16 Correct 4 ms 980 KB Output is correct
17 Correct 4 ms 808 KB Output is correct
18 Correct 4 ms 852 KB Output is correct
19 Correct 1481 ms 88612 KB Output is correct
20 Correct 1451 ms 88656 KB Output is correct
21 Correct 1411 ms 88484 KB Output is correct
22 Correct 1426 ms 88604 KB Output is correct
23 Correct 1384 ms 88524 KB Output is correct
24 Correct 99 ms 9696 KB Output is correct
25 Correct 97 ms 9812 KB Output is correct
26 Correct 90 ms 9776 KB Output is correct
27 Correct 89 ms 9808 KB Output is correct
28 Correct 90 ms 9872 KB Output is correct
29 Correct 80 ms 9808 KB Output is correct
30 Correct 82 ms 9864 KB Output is correct
31 Correct 80 ms 9880 KB Output is correct
32 Correct 46 ms 3204 KB Output is correct
33 Correct 82 ms 9824 KB Output is correct
34 Correct 243 ms 18948 KB Output is correct
35 Correct 229 ms 18688 KB Output is correct
36 Correct 202 ms 18604 KB Output is correct
37 Correct 194 ms 18692 KB Output is correct
38 Correct 213 ms 18756 KB Output is correct
39 Correct 189 ms 18608 KB Output is correct
40 Correct 176 ms 18652 KB Output is correct
41 Correct 187 ms 18688 KB Output is correct
42 Correct 189 ms 18636 KB Output is correct
43 Correct 192 ms 18608 KB Output is correct
44 Correct 204 ms 18708 KB Output is correct
45 Correct 219 ms 18696 KB Output is correct
46 Correct 207 ms 18672 KB Output is correct
47 Correct 219 ms 18596 KB Output is correct
48 Correct 211 ms 18688 KB Output is correct
49 Correct 173 ms 18640 KB Output is correct
50 Correct 189 ms 18624 KB Output is correct
51 Correct 170 ms 18580 KB Output is correct
52 Correct 172 ms 18668 KB Output is correct
53 Correct 176 ms 18600 KB Output is correct
54 Correct 175 ms 18672 KB Output is correct
55 Correct 141 ms 14040 KB Output is correct
56 Correct 173 ms 18676 KB Output is correct
57 Correct 1361 ms 88600 KB Output is correct
58 Correct 1362 ms 88608 KB Output is correct
59 Correct 1368 ms 88612 KB Output is correct
60 Correct 1343 ms 88624 KB Output is correct
61 Correct 1297 ms 88684 KB Output is correct
62 Correct 1422 ms 88608 KB Output is correct
63 Correct 1008 ms 88560 KB Output is correct
64 Correct 972 ms 88636 KB Output is correct
65 Correct 1297 ms 88612 KB Output is correct
66 Correct 1639 ms 88636 KB Output is correct
67 Correct 1351 ms 88680 KB Output is correct
68 Correct 1748 ms 88608 KB Output is correct
69 Correct 1414 ms 88612 KB Output is correct
70 Correct 1544 ms 88608 KB Output is correct
71 Correct 1450 ms 88668 KB Output is correct
72 Correct 1298 ms 88756 KB Output is correct
73 Correct 910 ms 88672 KB Output is correct
74 Correct 889 ms 88576 KB Output is correct
75 Correct 899 ms 88664 KB Output is correct
76 Correct 887 ms 88600 KB Output is correct
77 Correct 915 ms 88596 KB Output is correct
78 Correct 1122 ms 88740 KB Output is correct
79 Correct 872 ms 56928 KB Output is correct
80 Correct 1113 ms 88680 KB Output is correct