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답안 #288871

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
288871 2020-09-02T04:24:48 Z mohammedehab2002 별자리 3 (JOI20_constellation3) C++11
35 / 100
 1500 ms 28536 KB 
#include <bits/stdc++.h>
using namespace std;
long long w[200005],ans;
vector<int> v[200005];
pair<pair<int,int>,int> s[200005];
int a[200005],pre[200005],nex[200005];
int main()
{
	int n,m;
	scanf("%d",&n);
	for (int i=1;i<=n;i++)
	{
		scanf("%d",&a[i]);
		a[i]=n-a[i];
	}
	scanf("%d",&m);
	for (int i=0;i<m;i++)
	{
		scanf("%d%d%d",&s[i].first.second,&s[i].first.first,&s[i].second);
		s[i].first.first=n-s[i].first.first+1;
		ans+=s[i].second;
	}
	sort(s,s+m);
	reverse(s,s+m);
	for (int i=0;i<m;i++)
	v[s[i].first.second].push_back(i);
	stack<int> st;
	set<pair<int,int> > idx;
	st.push(0);
	idx.insert({0,0});
	for (int i=1;i<=n;i++)
	{
		while (!st.empty() && a[i]<=a[st.top()])
		{
			idx.erase({a[st.top()],st.top()});
			st.pop();
		}
		for (int j:v[i])
		pre[j]=(*prev(idx.upper_bound({s[j].first.first,-1}))).second+1;
		st.push(i);
		idx.insert({a[i],i});
	}
	while (!st.empty())
	st.pop();
	idx.clear();
	st.push(n+1);
	idx.insert({0,n+1});
	for (int i=n;i>0;i--)
	{
		while (!st.empty() && a[i]<=a[st.top()])
		{
			idx.erase({a[st.top()],st.top()});
			st.pop();
		}
		for (int j:v[i])
		nex[j]=(*prev(idx.upper_bound({s[j].first.first,-1}))).second-1;
		st.push(i);
		idx.insert({a[i],i});
	}
	for (int i=0;i<m;i++)
	{
		long long v=s[i].second+w[s[i].first.second];
		if (v>0)
		{
			ans-=v;
			for (int j=pre[i];j<=nex[i];j++)
			w[j]-=v;
		}
	}
	printf("%lld",ans);
}

Compilation message

constellation3.cpp: In function 'int main()':
constellation3.cpp:10:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   10 |  scanf("%d",&n);
      |  ~~~~~^~~~~~~~~
constellation3.cpp:13:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   13 |   scanf("%d",&a[i]);
      |   ~~~~~^~~~~~~~~~~~
constellation3.cpp:16:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   16 |  scanf("%d",&m);
      |  ~~~~~^~~~~~~~~
constellation3.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",&s[i].first.second,&s[i].first.first,&s[i].second);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 5120 KB Output is correct
2 Correct 3 ms 5120 KB Output is correct
3 Correct 4 ms 5120 KB Output is correct
4 Correct 4 ms 5120 KB Output is correct
5 Correct 4 ms 5120 KB Output is correct
6 Correct 3 ms 5120 KB Output is correct
7 Correct 4 ms 5120 KB Output is correct
8 Correct 4 ms 5120 KB Output is correct
9 Correct 4 ms 5120 KB Output is correct
10 Correct 4 ms 5120 KB Output is correct
11 Correct 4 ms 5120 KB Output is correct
12 Correct 4 ms 5120 KB Output is correct
13 Correct 4 ms 5120 KB Output is correct
14 Correct 4 ms 5120 KB Output is correct
15 Correct 4 ms 5120 KB Output is correct
16 Correct 4 ms 5120 KB Output is correct
17 Correct 4 ms 5120 KB Output is correct
18 Correct 4 ms 5120 KB Output is correct
19 Correct 4 ms 5120 KB Output is correct
20 Correct 4 ms 5120 KB Output is correct
21 Correct 4 ms 5120 KB Output is correct
22 Correct 4 ms 5120 KB Output is correct

Subtask #2
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 5120 KB Output is correct
2 Correct 3 ms 5120 KB Output is correct
3 Correct 4 ms 5120 KB Output is correct
4 Correct 4 ms 5120 KB Output is correct
5 Correct 4 ms 5120 KB Output is correct
6 Correct 3 ms 5120 KB Output is correct
7 Correct 4 ms 5120 KB Output is correct
8 Correct 4 ms 5120 KB Output is correct
9 Correct 4 ms 5120 KB Output is correct
10 Correct 4 ms 5120 KB Output is correct
11 Correct 4 ms 5120 KB Output is correct
12 Correct 4 ms 5120 KB Output is correct
13 Correct 4 ms 5120 KB Output is correct
14 Correct 4 ms 5120 KB Output is correct
15 Correct 4 ms 5120 KB Output is correct
16 Correct 4 ms 5120 KB Output is correct
17 Correct 4 ms 5120 KB Output is correct
18 Correct 4 ms 5120 KB Output is correct
19 Correct 4 ms 5120 KB Output is correct
20 Correct 4 ms 5120 KB Output is correct
21 Correct 4 ms 5120 KB Output is correct
22 Correct 4 ms 5120 KB Output is correct
23 Correct 5 ms 5120 KB Output is correct
24 Correct 5 ms 5248 KB Output is correct
25 Correct 6 ms 5248 KB Output is correct
26 Correct 5 ms 5120 KB Output is correct
27 Correct 6 ms 5248 KB Output is correct
28 Correct 5 ms 5248 KB Output is correct
29 Correct 5 ms 5120 KB Output is correct
30 Correct 6 ms 5248 KB Output is correct
31 Correct 5 ms 5248 KB Output is correct
32 Correct 6 ms 5248 KB Output is correct
33 Correct 6 ms 5248 KB Output is correct
34 Correct 6 ms 5248 KB Output is correct
35 Correct 6 ms 5248 KB Output is correct
36 Correct 5 ms 5120 KB Output is correct
37 Correct 5 ms 5248 KB Output is correct
38 Correct 5 ms 5248 KB Output is correct
39 Correct 5 ms 5120 KB Output is correct
40 Correct 6 ms 5248 KB Output is correct
41 Correct 6 ms 5120 KB Output is correct
42 Correct 6 ms 5120 KB Output is correct
43 Correct 6 ms 5248 KB Output is correct
44 Correct 5 ms 5120 KB Output is correct

Subtask #3
0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 5120 KB Output is correct
2 Correct 3 ms 5120 KB Output is correct
3 Correct 4 ms 5120 KB Output is correct
4 Correct 4 ms 5120 KB Output is correct
5 Correct 4 ms 5120 KB Output is correct
6 Correct 3 ms 5120 KB Output is correct
7 Correct 4 ms 5120 KB Output is correct
8 Correct 4 ms 5120 KB Output is correct
9 Correct 4 ms 5120 KB Output is correct
10 Correct 4 ms 5120 KB Output is correct
11 Correct 4 ms 5120 KB Output is correct
12 Correct 4 ms 5120 KB Output is correct
13 Correct 4 ms 5120 KB Output is correct
14 Correct 4 ms 5120 KB Output is correct
15 Correct 4 ms 5120 KB Output is correct
16 Correct 4 ms 5120 KB Output is correct
17 Correct 4 ms 5120 KB Output is correct
18 Correct 4 ms 5120 KB Output is correct
19 Correct 4 ms 5120 KB Output is correct
20 Correct 4 ms 5120 KB Output is correct
21 Correct 4 ms 5120 KB Output is correct
22 Correct 4 ms 5120 KB Output is correct
23 Correct 5 ms 5120 KB Output is correct
24 Correct 5 ms 5248 KB Output is correct
25 Correct 6 ms 5248 KB Output is correct
26 Correct 5 ms 5120 KB Output is correct
27 Correct 6 ms 5248 KB Output is correct
28 Correct 5 ms 5248 KB Output is correct
29 Correct 5 ms 5120 KB Output is correct
30 Correct 6 ms 5248 KB Output is correct
31 Correct 5 ms 5248 KB Output is correct
32 Correct 6 ms 5248 KB Output is correct
33 Correct 6 ms 5248 KB Output is correct
34 Correct 6 ms 5248 KB Output is correct
35 Correct 6 ms 5248 KB Output is correct
36 Correct 5 ms 5120 KB Output is correct
37 Correct 5 ms 5248 KB Output is correct
38 Correct 5 ms 5248 KB Output is correct
39 Correct 5 ms 5120 KB Output is correct
40 Correct 6 ms 5248 KB Output is correct
41 Correct 6 ms 5120 KB Output is correct
42 Correct 6 ms 5120 KB Output is correct
43 Correct 6 ms 5248 KB Output is correct
44 Correct 5 ms 5120 KB Output is correct
45 Correct 289 ms 20728 KB Output is correct
46 Correct 286 ms 20600 KB Output is correct
47 Correct 291 ms 20900 KB Output is correct
48 Correct 274 ms 20344 KB Output is correct
49 Correct 287 ms 20472 KB Output is correct
50 Correct 288 ms 20344 KB Output is correct
51 Correct 288 ms 20404 KB Output is correct
52 Correct 300 ms 20856 KB Output is correct
53 Correct 295 ms 20476 KB Output is correct
54 Correct 494 ms 24184 KB Output is correct
55 Correct 500 ms 23288 KB Output is correct
56 Correct 471 ms 22392 KB Output is correct
57 Correct 449 ms 22264 KB Output is correct
58 Correct 360 ms 20332 KB Output is correct
59 Correct 367 ms 20600 KB Output is correct
60 Execution timed out 1590 ms 28536 KB Time limit exceeded
61 Halted 0 ms 0 KB -