oj.uz

Submission #396420

# Submission time Handle Problem Language Result Execution time Memory
396420 2021-04-30T00:06:29 Z peuch Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++17
100 / 100
 2201 ms 87268 KB 
#include<bits/stdc++.h>
using namespace std;

const int MAXN = 1e6 + 10;

int n, m;
int v[MAXN];

int l[MAXN];

int ans[MAXN];

struct event{
	int a, b, c, id;
	event(int _a = 0, int _b = 0, int _c = 0, int _id = 0){
		a = _a, b = _b, c = _c, id = _id;
	}
	void scan(int _id){
		scanf("%d %d %d", &a, &b, &c);
		id = _id;
	}
	bool operator < (event x) const{
		if(c == x.c) return a > x.a;
		return c > x.c;
	}
};

vector<event> line;

int seg[4 * MAXN];
void update(int pos, int ini, int fim, int id, int val);
int query(int pos, int ini, int fim, int p, int q);

int main(){
	scanf("%d %d", &n, &m);
	for(int i = 1; i <= n; i++){
		scanf("%d", &v[i]);
		l[i] = i - 1;
		while(l[i] > 0 && v[l[i]] <= v[i]) l[i] = l[l[i]];
		line.push_back(event(-1, i, v[i] + v[l[i]], -1));
	}
	for(int i = 1; i <= m; i++){
		event aux;
		aux.scan(i);
		line.push_back(aux);
	}
	sort(line.begin(), line.end());
	for(int i = 0; i < line.size(); i++){
		if(line[i].a == -1) update(1, 1, n, line[i].b, l[line[i].b]);
		else ans[line[i].id] = query(1, 1, n, line[i].a, line[i].b) < line[i].a;
	}
	for(int i = 1; i <= m; i++)
		printf("%d\n", ans[i]);
}

void update(int pos, int ini, int fim, int id, int val){
	if(ini > id || fim < id) return;
	if(ini == fim){
		seg[pos] = max(seg[pos], val);
		return;
	}
	int mid = (ini + fim) >> 1, e = pos << 1, d = e | 1;
	update(e, ini, mid, id, val);
	update(d, mid + 1, fim, id, val);
	seg[pos] = max(seg[e], seg[d]);
}

int query(int pos, int ini, int fim, int p, int q){
	if(ini > q || fim < p) return 0;
	if(ini >= p && fim <= q) return seg[pos];
	int mid = (ini + fim) >> 1, e = pos << 1, d = e | 1;
	return max(query(e, ini, mid, p, q), query(d, mid + 1, fim, p, q));
	
}

Compilation message

sortbooks.cpp: In function 'int main()':
sortbooks.cpp:48:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<event>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |  for(int i = 0; i < line.size(); i++){
      |                 ~~^~~~~~~~~~~~~
sortbooks.cpp:35:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   35 |  scanf("%d %d", &n, &m);
      |  ~~~~~^~~~~~~~~~~~~~~~~
sortbooks.cpp:37:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   37 |   scanf("%d", &v[i]);
      |   ~~~~~^~~~~~~~~~~~~
sortbooks.cpp: In member function 'void event::scan(int)':
sortbooks.cpp:19:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   19 |   scanf("%d %d %d", &a, &b, &c);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 312 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 328 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 2 ms 332 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 312 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 328 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 2 ms 332 KB Output is correct
11 Correct 4 ms 596 KB Output is correct
12 Correct 5 ms 716 KB Output is correct
13 Correct 6 ms 716 KB Output is correct
14 Correct 7 ms 844 KB Output is correct
15 Correct 9 ms 844 KB Output is correct
16 Correct 7 ms 840 KB Output is correct
17 Correct 5 ms 844 KB Output is correct
18 Correct 6 ms 716 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2158 ms 64284 KB Output is correct
2 Correct 2164 ms 69028 KB Output is correct
3 Correct 2201 ms 69060 KB Output is correct
4 Correct 2127 ms 69012 KB Output is correct
5 Correct 1981 ms 69176 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 194 ms 7896 KB Output is correct
2 Correct 151 ms 7852 KB Output is correct
3 Correct 139 ms 7948 KB Output is correct
4 Correct 144 ms 7896 KB Output is correct
5 Correct 135 ms 7896 KB Output is correct
6 Correct 125 ms 7732 KB Output is correct
7 Correct 122 ms 7720 KB Output is correct
8 Correct 118 ms 7628 KB Output is correct
9 Correct 59 ms 3852 KB Output is correct
10 Correct 120 ms 7588 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 312 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 328 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 2 ms 332 KB Output is correct
11 Correct 4 ms 596 KB Output is correct
12 Correct 5 ms 716 KB Output is correct
13 Correct 6 ms 716 KB Output is correct
14 Correct 7 ms 844 KB Output is correct
15 Correct 9 ms 844 KB Output is correct
16 Correct 7 ms 840 KB Output is correct
17 Correct 5 ms 844 KB Output is correct
18 Correct 6 ms 716 KB Output is correct
19 Correct 343 ms 18056 KB Output is correct
20 Correct 349 ms 18088 KB Output is correct
21 Correct 334 ms 17896 KB Output is correct
22 Correct 330 ms 17820 KB Output is correct
23 Correct 335 ms 17972 KB Output is correct
24 Correct 304 ms 17816 KB Output is correct
25 Correct 299 ms 17772 KB Output is correct
26 Correct 328 ms 18008 KB Output is correct
27 Correct 307 ms 18012 KB Output is correct
28 Correct 325 ms 17948 KB Output is correct
29 Correct 306 ms 18008 KB Output is correct
30 Correct 309 ms 18068 KB Output is correct
31 Correct 312 ms 18068 KB Output is correct
32 Correct 323 ms 18020 KB Output is correct
33 Correct 307 ms 17996 KB Output is correct
34 Correct 292 ms 17732 KB Output is correct
35 Correct 293 ms 17660 KB Output is correct
36 Correct 272 ms 17468 KB Output is correct
37 Correct 278 ms 17508 KB Output is correct
38 Correct 279 ms 17688 KB Output is correct
39 Correct 296 ms 16620 KB Output is correct
40 Correct 217 ms 13296 KB Output is correct
41 Correct 258 ms 16128 KB Output is correct

Subtask #6
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 312 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 328 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 2 ms 332 KB Output is correct
11 Correct 4 ms 596 KB Output is correct
12 Correct 5 ms 716 KB Output is correct
13 Correct 6 ms 716 KB Output is correct
14 Correct 7 ms 844 KB Output is correct
15 Correct 9 ms 844 KB Output is correct
16 Correct 7 ms 840 KB Output is correct
17 Correct 5 ms 844 KB Output is correct
18 Correct 6 ms 716 KB Output is correct
19 Correct 2158 ms 64284 KB Output is correct
20 Correct 2164 ms 69028 KB Output is correct
21 Correct 2201 ms 69060 KB Output is correct
22 Correct 2127 ms 69012 KB Output is correct
23 Correct 1981 ms 69176 KB Output is correct
24 Correct 194 ms 7896 KB Output is correct
25 Correct 151 ms 7852 KB Output is correct
26 Correct 139 ms 7948 KB Output is correct
27 Correct 144 ms 7896 KB Output is correct
28 Correct 135 ms 7896 KB Output is correct
29 Correct 125 ms 7732 KB Output is correct
30 Correct 122 ms 7720 KB Output is correct
31 Correct 118 ms 7628 KB Output is correct
32 Correct 59 ms 3852 KB Output is correct
33 Correct 120 ms 7588 KB Output is correct
34 Correct 343 ms 18056 KB Output is correct
35 Correct 349 ms 18088 KB Output is correct
36 Correct 334 ms 17896 KB Output is correct
37 Correct 330 ms 17820 KB Output is correct
38 Correct 335 ms 17972 KB Output is correct
39 Correct 304 ms 17816 KB Output is correct
40 Correct 299 ms 17772 KB Output is correct
41 Correct 328 ms 18008 KB Output is correct
42 Correct 307 ms 18012 KB Output is correct
43 Correct 325 ms 17948 KB Output is correct
44 Correct 306 ms 18008 KB Output is correct
45 Correct 309 ms 18068 KB Output is correct
46 Correct 312 ms 18068 KB Output is correct
47 Correct 323 ms 18020 KB Output is correct
48 Correct 307 ms 17996 KB Output is correct
49 Correct 292 ms 17732 KB Output is correct
50 Correct 293 ms 17660 KB Output is correct
51 Correct 272 ms 17468 KB Output is correct
52 Correct 278 ms 17508 KB Output is correct
53 Correct 279 ms 17688 KB Output is correct
54 Correct 296 ms 16620 KB Output is correct
55 Correct 217 ms 13296 KB Output is correct
56 Correct 258 ms 16128 KB Output is correct
57 Correct 2164 ms 69628 KB Output is correct
58 Correct 2182 ms 69644 KB Output is correct
59 Correct 2101 ms 69744 KB Output is correct
60 Correct 2153 ms 69732 KB Output is correct
61 Correct 2162 ms 69564 KB Output is correct
62 Correct 2184 ms 69428 KB Output is correct
63 Correct 1699 ms 64228 KB Output is correct
64 Correct 1681 ms 64248 KB Output is correct
65 Correct 1770 ms 81764 KB Output is correct
66 Correct 1748 ms 87012 KB Output is correct
67 Correct 1766 ms 87012 KB Output is correct
68 Correct 1777 ms 87132 KB Output is correct
69 Correct 1794 ms 87268 KB Output is correct
70 Correct 1745 ms 87180 KB Output is correct
71 Correct 1725 ms 87172 KB Output is correct
72 Correct 1771 ms 87140 KB Output is correct
73 Correct 1461 ms 64484 KB Output is correct
74 Correct 1493 ms 70752 KB Output is correct
75 Correct 1429 ms 64336 KB Output is correct
76 Correct 1467 ms 83964 KB Output is correct
77 Correct 1442 ms 83712 KB Output is correct
78 Correct 1589 ms 64744 KB Output is correct
79 Correct 1055 ms 61096 KB Output is correct
80 Correct 1432 ms 78152 KB Output is correct