oj.uz

Submission #199463

# Submission time Handle Problem Language Result Execution time Memory
199463 2020-02-01T13:11:49 Z dennisstar Sushi (JOI16_sushi) C++17
20 / 100
 12000 ms 11384 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
#define em emplace
#define eb emplace_back
#define all(V) (V).begin(), (V).end()
using namespace std;
typedef vector<int> vim;
typedef pair<int, int> pii;

const int sz = 1000;

int N, M, Q, X[400010];
vector<pii> B[810]; priority_queue<int> S[810];

inline void make(int t) {
	B[t].clear(); while(!S[t].empty()) S[t].pop();
	int ub=min((t+1)*sz, N);
	for (int i=t*sz; i<ub; i++) B[t].eb(X[i], i);
	sort(all(B[t])); reverse(all(B[t]));
	for (auto &i:B[t]) S[t].em(i.fi);
}

inline void upd(int t) {
	for (auto &i:B[t]) { i.fi=S[t].top(); X[i.se]=i.fi; S[t].pop(); }
	for (auto &i:B[t]) S[t].em(i.fi);
}

inline int sol(int t, int p) {
	S[t].em(p); p=S[t].top(); S[t].pop();
	return p;
}

inline int f(int s, int e, int p) {
	int st=s/sz, et=e/sz;
	upd(st); upd(et);
	if (st==et) { for (int i=s; i<=e; i++) if (p<X[i]) swap(p, X[i]); }
	else {
		for (int i=s; i<min(N, (st+1)*sz); i++) if (p<X[i]) swap(p, X[i]);
		for (int i=st+1; i<et; i++) p=sol(i, p);
		for (int i=et*sz; i<=e; i++) if (p<X[i]) swap(p, X[i]);
	}
	make(st); make(et);
	return p;
}

int main() {
	scanf("%d %d", &N, &Q); M=(N+sz-1)/sz;
	for (int i=0; i<N; i++) scanf("%d", &X[i]);
	for (int i=0; i<M; i++) make(i);
	while (Q--) {
		int s, t, p;
		scanf("%d %d %d", &s, &t, &p); s--; t--;
		if (s>t) printf("%d\n", f(0, t, f(s, N-1, p)));
		else printf("%d\n", f(s, t, p));
	}
	return 0;
}

Compilation message

sushi.cpp: In function 'int main()':
sushi.cpp:48:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &N, &Q); M=(N+sz-1)/sz;
  ~~~~~^~~~~~~~~~~~~~~~~
sushi.cpp:49:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for (int i=0; i<N; i++) scanf("%d", &X[i]);
                          ~~~~~^~~~~~~~~~~~~
sushi.cpp:53:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d", &s, &t, &p); s--; t--;
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1177 ms 632 KB Output is correct
2 Correct 1162 ms 632 KB Output is correct
3 Correct 1194 ms 632 KB Output is correct
4 Correct 1164 ms 508 KB Output is correct
5 Correct 1245 ms 632 KB Output is correct
6 Correct 1264 ms 508 KB Output is correct
7 Correct 645 ms 504 KB Output is correct
8 Correct 628 ms 476 KB Output is correct
9 Correct 1168 ms 532 KB Output is correct
10 Correct 1160 ms 504 KB Output is correct
11 Correct 1154 ms 504 KB Output is correct
12 Correct 1115 ms 768 KB Output is correct
13 Correct 1220 ms 760 KB Output is correct
14 Correct 1541 ms 632 KB Output is correct
15 Correct 1517 ms 532 KB Output is correct
16 Correct 726 ms 504 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 6 ms 376 KB Output is correct
20 Correct 6 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 10015 ms 7480 KB Output is correct
2 Correct 10215 ms 7388 KB Output is correct
3 Correct 4829 ms 7204 KB Output is correct
4 Correct 9810 ms 7412 KB Output is correct
5 Correct 7745 ms 7472 KB Output is correct
6 Correct 9425 ms 7324 KB Output is correct
7 Correct 9413 ms 7480 KB Output is correct
8 Correct 9154 ms 7484 KB Output is correct
9 Correct 3594 ms 7192 KB Output is correct
10 Correct 7710 ms 7348 KB Output is correct
11 Correct 3753 ms 7192 KB Output is correct
12 Correct 8041 ms 7416 KB Output is correct
13 Correct 10618 ms 7568 KB Output is correct
14 Correct 9672 ms 6904 KB Output is correct
15 Correct 4997 ms 6776 KB Output is correct
16 Correct 9482 ms 7032 KB Output is correct
17 Correct 7765 ms 7148 KB Output is correct
18 Correct 9516 ms 7048 KB Output is correct
19 Correct 9509 ms 7088 KB Output is correct
20 Correct 9391 ms 7160 KB Output is correct

Subtask #3
0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 1177 ms 632 KB Output is correct
2 Correct 1162 ms 632 KB Output is correct
3 Correct 1194 ms 632 KB Output is correct
4 Correct 1164 ms 508 KB Output is correct
5 Correct 1245 ms 632 KB Output is correct
6 Correct 1264 ms 508 KB Output is correct
7 Correct 645 ms 504 KB Output is correct
8 Correct 628 ms 476 KB Output is correct
9 Correct 1168 ms 532 KB Output is correct
10 Correct 1160 ms 504 KB Output is correct
11 Correct 1154 ms 504 KB Output is correct
12 Correct 1115 ms 768 KB Output is correct
13 Correct 1220 ms 760 KB Output is correct
14 Correct 1541 ms 632 KB Output is correct
15 Correct 1517 ms 532 KB Output is correct
16 Correct 726 ms 504 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 6 ms 376 KB Output is correct
20 Correct 6 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 10015 ms 7480 KB Output is correct
24 Correct 10215 ms 7388 KB Output is correct
25 Correct 4829 ms 7204 KB Output is correct
26 Correct 9810 ms 7412 KB Output is correct
27 Correct 7745 ms 7472 KB Output is correct
28 Correct 9425 ms 7324 KB Output is correct
29 Correct 9413 ms 7480 KB Output is correct
30 Correct 9154 ms 7484 KB Output is correct
31 Correct 3594 ms 7192 KB Output is correct
32 Correct 7710 ms 7348 KB Output is correct
33 Correct 3753 ms 7192 KB Output is correct
34 Correct 8041 ms 7416 KB Output is correct
35 Correct 10618 ms 7568 KB Output is correct
36 Correct 9672 ms 6904 KB Output is correct
37 Correct 4997 ms 6776 KB Output is correct
38 Correct 9482 ms 7032 KB Output is correct
39 Correct 7765 ms 7148 KB Output is correct
40 Correct 9516 ms 7048 KB Output is correct
41 Correct 9509 ms 7088 KB Output is correct
42 Correct 9391 ms 7160 KB Output is correct
43 Execution timed out 12067 ms 11384 KB Time limit exceeded
44 Halted 0 ms 0 KB -