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Submission #862883

# Submission time Handle Problem Language Result Execution time Memory
862883 2023-10-19T08:40:36 Z quandlm Curtains (NOI23_curtains) C++14
100 / 100
 765 ms 102224 KB 
#include <bits/stdc++.h>
#define file(name)  if (fopen (name".inp", "r")) { freopen (name".inp", "r", stdin); freopen (name".out", "w", stdout); }
#define ll long long
#define FOR(i, a, b) for (int i = (a); i <= (b); ++i)
#define REP(i, a, b) for (int i = (a); i >= (b); --i)
#define pi pair<int,int>
#define ple tuple<int,int,int>
#define fi first
#define se second
#define ii make_pair
#define isz(a) ((int)a.size())
#define ALL(a) a.begin(), a.end()

using namespace std;

const int N = 1e6 + 10;

void maximize (int &a, int b) {
     a = max(a, b);
}

int n, m, q, res[N];
pi a[N];
vector<pi> ques[N];
vector<int> events[N];

struct STree {
       int node[N * 4], lazy[N * 4];
       void down (int id, int l, int r) {
            if (lazy[id] == 0) return;
            maximize(node[id], lazy[id]);
            if (l != r) {
                maximize(lazy[id*2], lazy[id]);
                maximize(lazy[id*2+1], lazy[id]);
            }
            lazy[id] = 0;
       }
       void update (int id, int l, int r, int u, int v, int val) {
            down(id, l, r);
            if (l > v || r < u) return;
            if (l >= u && r <= v) {
                lazy[id] = val;
                down(id, l, r);
                return;
            }
            int mid = l + r >> 1;
            update(id*2, l, mid, u, v, val);
            update(id*2+1, mid+1, r, u, v, val);
            node[id] = min(node[id*2], node[id*2+1]);
       }
       int get (int id, int l, int r, int u, int v) {
           down(id, l, r);
           if (l > v || r < u) return 1e9;
           if (l >= u && r <= v) return node[id];
           int mid = l + r >> 1;
           return min(get(id*2,l,mid,u,v),get(id*2+1,mid+1,r,u,v));
       }
} st;

int main () {
      file("pupil");
      ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

      cin >> n >> m >> q;
      FOR(i,1,m) {
          int l,r; cin >> l >> r;
          events[r].push_back(l);
      }
      FOR(i,1,q) {
          int l,r; cin >> l >> r;
          ques[r].push_back({l, i});
      }
      FOR(r,1,n) {
          for (int l : events[r]) {
               st.update(1, 1, n, l, r, l);
          }
          for (pi it : ques[r]) {
               int l = it.fi;
               int id = it.se;
               if (st.get(1,1,n,l,r) >= l) {
                     res[id] = true;
               }
          }
      }
      FOR(i,1,q) {
          cout << (res[i] == true ? "YES\n" : "NO\n");
      }

}

Compilation message

curtains.cpp: In member function 'void STree::update(int, int, int, int, int, int)':
curtains.cpp:46:25: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   46 |             int mid = l + r >> 1;
      |                       ~~^~~
curtains.cpp: In member function 'int STree::get(int, int, int, int, int)':
curtains.cpp:55:24: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   55 |            int mid = l + r >> 1;
      |                      ~~^~~
curtains.cpp: In function 'int main()':
curtains.cpp:2:60: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    2 | #define file(name)  if (fopen (name".inp", "r")) { freopen (name".inp", "r", stdin); freopen (name".out", "w", stdout); }
      |                                                    ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
curtains.cpp:61:7: note: in expansion of macro 'file'
   61 |       file("pupil");
      |       ^~~~
curtains.cpp:2:94: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    2 | #define file(name)  if (fopen (name".inp", "r")) { freopen (name".inp", "r", stdin); freopen (name".out", "w", stdout); }
      |                                                                                      ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
curtains.cpp:61:7: note: in expansion of macro 'file'
   61 |       file("pupil");
      |       ^~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 51544 KB Output is correct
2 Correct 11 ms 51776 KB Output is correct
3 Correct 12 ms 51548 KB Output is correct
4 Correct 11 ms 51548 KB Output is correct
5 Correct 11 ms 51736 KB Output is correct
6 Correct 11 ms 51548 KB Output is correct
7 Correct 10 ms 51788 KB Output is correct
8 Correct 10 ms 49496 KB Output is correct
9 Correct 10 ms 51672 KB Output is correct
10 Correct 10 ms 49664 KB Output is correct
11 Correct 11 ms 51548 KB Output is correct
12 Correct 12 ms 51548 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 51544 KB Output is correct
2 Correct 11 ms 51776 KB Output is correct
3 Correct 12 ms 51548 KB Output is correct
4 Correct 11 ms 51548 KB Output is correct
5 Correct 11 ms 51736 KB Output is correct
6 Correct 11 ms 51548 KB Output is correct
7 Correct 10 ms 51788 KB Output is correct
8 Correct 10 ms 49496 KB Output is correct
9 Correct 10 ms 51672 KB Output is correct
10 Correct 10 ms 49664 KB Output is correct
11 Correct 11 ms 51548 KB Output is correct
12 Correct 12 ms 51548 KB Output is correct
13 Correct 13 ms 51804 KB Output is correct
14 Correct 12 ms 51828 KB Output is correct
15 Correct 12 ms 51804 KB Output is correct
16 Correct 12 ms 51816 KB Output is correct
17 Correct 12 ms 51800 KB Output is correct
18 Correct 11 ms 51800 KB Output is correct
19 Correct 11 ms 49756 KB Output is correct
20 Correct 12 ms 51900 KB Output is correct
21 Correct 12 ms 51804 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 51544 KB Output is correct
2 Correct 11 ms 51776 KB Output is correct
3 Correct 12 ms 51548 KB Output is correct
4 Correct 11 ms 51548 KB Output is correct
5 Correct 11 ms 51736 KB Output is correct
6 Correct 11 ms 51548 KB Output is correct
7 Correct 10 ms 51788 KB Output is correct
8 Correct 10 ms 49496 KB Output is correct
9 Correct 10 ms 51672 KB Output is correct
10 Correct 10 ms 49664 KB Output is correct
11 Correct 11 ms 51548 KB Output is correct
12 Correct 12 ms 51548 KB Output is correct
13 Correct 13 ms 51804 KB Output is correct
14 Correct 12 ms 51828 KB Output is correct
15 Correct 12 ms 51804 KB Output is correct
16 Correct 12 ms 51816 KB Output is correct
17 Correct 12 ms 51800 KB Output is correct
18 Correct 11 ms 51800 KB Output is correct
19 Correct 11 ms 49756 KB Output is correct
20 Correct 12 ms 51900 KB Output is correct
21 Correct 12 ms 51804 KB Output is correct
22 Correct 159 ms 66012 KB Output is correct
23 Correct 153 ms 66328 KB Output is correct
24 Correct 177 ms 67812 KB Output is correct
25 Correct 297 ms 73380 KB Output is correct
26 Correct 151 ms 66232 KB Output is correct
27 Correct 303 ms 73552 KB Output is correct
28 Correct 355 ms 73812 KB Output is correct
29 Correct 132 ms 65108 KB Output is correct
30 Correct 95 ms 65168 KB Output is correct
31 Correct 117 ms 66128 KB Output is correct
32 Correct 243 ms 72528 KB Output is correct
33 Correct 118 ms 65396 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 51544 KB Output is correct
2 Correct 11 ms 49500 KB Output is correct
3 Correct 10 ms 51544 KB Output is correct
4 Correct 11 ms 49752 KB Output is correct
5 Correct 12 ms 51892 KB Output is correct
6 Correct 13 ms 51804 KB Output is correct
7 Correct 12 ms 50008 KB Output is correct
8 Correct 98 ms 65236 KB Output is correct
9 Correct 112 ms 65872 KB Output is correct
10 Correct 243 ms 72528 KB Output is correct
11 Correct 94 ms 65172 KB Output is correct
12 Correct 102 ms 62984 KB Output is correct
13 Correct 96 ms 62804 KB Output is correct
14 Correct 84 ms 58780 KB Output is correct
15 Correct 91 ms 62640 KB Output is correct
16 Correct 75 ms 58960 KB Output is correct
17 Correct 77 ms 60500 KB Output is correct
18 Correct 590 ms 99480 KB Output is correct
19 Correct 627 ms 99628 KB Output is correct
20 Correct 480 ms 99664 KB Output is correct
21 Correct 485 ms 94584 KB Output is correct
22 Correct 487 ms 96064 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 51544 KB Output is correct
2 Correct 11 ms 51776 KB Output is correct
3 Correct 12 ms 51548 KB Output is correct
4 Correct 11 ms 51548 KB Output is correct
5 Correct 11 ms 51736 KB Output is correct
6 Correct 11 ms 51548 KB Output is correct
7 Correct 10 ms 51788 KB Output is correct
8 Correct 10 ms 49496 KB Output is correct
9 Correct 10 ms 51672 KB Output is correct
10 Correct 10 ms 49664 KB Output is correct
11 Correct 11 ms 51548 KB Output is correct
12 Correct 12 ms 51548 KB Output is correct
13 Correct 13 ms 51804 KB Output is correct
14 Correct 12 ms 51828 KB Output is correct
15 Correct 12 ms 51804 KB Output is correct
16 Correct 12 ms 51816 KB Output is correct
17 Correct 12 ms 51800 KB Output is correct
18 Correct 11 ms 51800 KB Output is correct
19 Correct 11 ms 49756 KB Output is correct
20 Correct 12 ms 51900 KB Output is correct
21 Correct 12 ms 51804 KB Output is correct
22 Correct 87 ms 58448 KB Output is correct
23 Correct 96 ms 58396 KB Output is correct
24 Correct 118 ms 62032 KB Output is correct
25 Correct 118 ms 62224 KB Output is correct
26 Correct 90 ms 63124 KB Output is correct
27 Correct 110 ms 63328 KB Output is correct
28 Correct 76 ms 61264 KB Output is correct
29 Correct 87 ms 62676 KB Output is correct
30 Correct 139 ms 62072 KB Output is correct
31 Correct 119 ms 62036 KB Output is correct
32 Correct 105 ms 62548 KB Output is correct
33 Correct 100 ms 62880 KB Output is correct
34 Correct 107 ms 61700 KB Output is correct
35 Correct 106 ms 62072 KB Output is correct
36 Correct 126 ms 62544 KB Output is correct
37 Correct 96 ms 63064 KB Output is correct
38 Correct 100 ms 62960 KB Output is correct
39 Correct 82 ms 58904 KB Output is correct
40 Correct 83 ms 62544 KB Output is correct
41 Correct 76 ms 58964 KB Output is correct
42 Correct 77 ms 60492 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 51544 KB Output is correct
2 Correct 11 ms 51776 KB Output is correct
3 Correct 12 ms 51548 KB Output is correct
4 Correct 11 ms 51548 KB Output is correct
5 Correct 11 ms 51736 KB Output is correct
6 Correct 11 ms 51548 KB Output is correct
7 Correct 10 ms 51788 KB Output is correct
8 Correct 10 ms 49496 KB Output is correct
9 Correct 10 ms 51672 KB Output is correct
10 Correct 10 ms 49664 KB Output is correct
11 Correct 11 ms 51548 KB Output is correct
12 Correct 12 ms 51548 KB Output is correct
13 Correct 13 ms 51804 KB Output is correct
14 Correct 12 ms 51828 KB Output is correct
15 Correct 12 ms 51804 KB Output is correct
16 Correct 12 ms 51816 KB Output is correct
17 Correct 12 ms 51800 KB Output is correct
18 Correct 11 ms 51800 KB Output is correct
19 Correct 11 ms 49756 KB Output is correct
20 Correct 12 ms 51900 KB Output is correct
21 Correct 12 ms 51804 KB Output is correct
22 Correct 159 ms 66012 KB Output is correct
23 Correct 153 ms 66328 KB Output is correct
24 Correct 177 ms 67812 KB Output is correct
25 Correct 297 ms 73380 KB Output is correct
26 Correct 151 ms 66232 KB Output is correct
27 Correct 303 ms 73552 KB Output is correct
28 Correct 355 ms 73812 KB Output is correct
29 Correct 132 ms 65108 KB Output is correct
30 Correct 95 ms 65168 KB Output is correct
31 Correct 117 ms 66128 KB Output is correct
32 Correct 243 ms 72528 KB Output is correct
33 Correct 118 ms 65396 KB Output is correct
34 Correct 11 ms 51544 KB Output is correct
35 Correct 11 ms 49500 KB Output is correct
36 Correct 10 ms 51544 KB Output is correct
37 Correct 11 ms 49752 KB Output is correct
38 Correct 12 ms 51892 KB Output is correct
39 Correct 13 ms 51804 KB Output is correct
40 Correct 12 ms 50008 KB Output is correct
41 Correct 98 ms 65236 KB Output is correct
42 Correct 112 ms 65872 KB Output is correct
43 Correct 243 ms 72528 KB Output is correct
44 Correct 94 ms 65172 KB Output is correct
45 Correct 102 ms 62984 KB Output is correct
46 Correct 96 ms 62804 KB Output is correct
47 Correct 84 ms 58780 KB Output is correct
48 Correct 91 ms 62640 KB Output is correct
49 Correct 75 ms 58960 KB Output is correct
50 Correct 77 ms 60500 KB Output is correct
51 Correct 590 ms 99480 KB Output is correct
52 Correct 627 ms 99628 KB Output is correct
53 Correct 480 ms 99664 KB Output is correct
54 Correct 485 ms 94584 KB Output is correct
55 Correct 487 ms 96064 KB Output is correct
56 Correct 87 ms 58448 KB Output is correct
57 Correct 96 ms 58396 KB Output is correct
58 Correct 118 ms 62032 KB Output is correct
59 Correct 118 ms 62224 KB Output is correct
60 Correct 90 ms 63124 KB Output is correct
61 Correct 110 ms 63328 KB Output is correct
62 Correct 76 ms 61264 KB Output is correct
63 Correct 87 ms 62676 KB Output is correct
64 Correct 139 ms 62072 KB Output is correct
65 Correct 119 ms 62036 KB Output is correct
66 Correct 105 ms 62548 KB Output is correct
67 Correct 100 ms 62880 KB Output is correct
68 Correct 107 ms 61700 KB Output is correct
69 Correct 106 ms 62072 KB Output is correct
70 Correct 126 ms 62544 KB Output is correct
71 Correct 96 ms 63064 KB Output is correct
72 Correct 100 ms 62960 KB Output is correct
73 Correct 82 ms 58904 KB Output is correct
74 Correct 83 ms 62544 KB Output is correct
75 Correct 76 ms 58964 KB Output is correct
76 Correct 77 ms 60492 KB Output is correct
77 Correct 701 ms 95880 KB Output is correct
78 Correct 765 ms 95764 KB Output is correct
79 Correct 544 ms 101508 KB Output is correct
80 Correct 577 ms 102224 KB Output is correct
81 Correct 546 ms 99968 KB Output is correct
82 Correct 554 ms 100404 KB Output is correct
83 Correct 712 ms 95752 KB Output is correct
84 Correct 704 ms 95628 KB Output is correct
85 Correct 669 ms 97416 KB Output is correct
86 Correct 625 ms 93776 KB Output is correct
87 Correct 601 ms 93520 KB Output is correct
88 Correct 570 ms 100180 KB Output is correct