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Submission #341448

# Submission time Handle Problem Language Result Execution time Memory
341448 2020-12-29T18:06:45 Z ogibogi2004 Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++14
100 / 100
 1125 ms 111308 KB 
#include<bits/stdc++.h>
using namespace std;
#define ll int
const ll MAXN=1e6+6;
ll w[MAXN];
struct query
{
	ll r,k,pos;
};
ll ans[MAXN];
vector<query>v[MAXN];
vector<ll>g[MAXN];
ll t[MAXN],n,m;
ll fen[MAXN];
void update(ll idx,ll val)
{
	for(;idx<MAXN;idx+=idx&(-idx))
	{
		fen[idx]=max(fen[idx],val);
	}
}
ll query(ll idx)
{
	ll ret=0;
	for(;idx>0;idx-=idx&(-idx))
	{
		ret=max(ret,fen[idx]);
	}
	return ret;
}
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	cin>>n>>m;
	for(ll i=1;i<=n;++i)cin>>w[i];
	stack<pair<ll,ll> >st;
	t[1]=-1;
	st.push({w[1],1});
	for(ll i=1;i<=n;++i)
	{
		while(!st.empty()&&st.top().first<=w[i])
		{
			st.pop();
		}
		if(st.empty())
		{
			t[i]=-1;
		}
		else t[i]=st.top().second;
		st.push({w[i],i});
	}
	for(ll i=1;i<=n;++i)
	{
		if(t[i]==-1)continue;
		g[t[i]].push_back(i);
	}
	for(ll i=1;i<=m;++i)
	{
		ll l,r,k;
		cin>>l>>r>>k;
		v[l].push_back({r,k,i});
	}
	for(ll i=n;i>=1;--i)
	{
		for(ll j=0;j<g[i].size();++j)
		{
			update(g[i][j],w[i]+w[g[i][j]]);
		}
		for(ll j=0;j<v[i].size();++j)
		{
			ll t=query(v[i][j].r);
			if(t>v[i][j].k)ans[v[i][j].pos]=0;
			else ans[v[i][j].pos]=1;
		}
	}
	for(ll i=1;i<=m;++i)cout<<ans[i]<<'\n';
return 0;
}

Compilation message

sortbooks.cpp: In function 'int main()':
sortbooks.cpp:67:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 |   for(ll j=0;j<g[i].size();++j)
      |              ~^~~~~~~~~~~~
sortbooks.cpp:71:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |   for(ll j=0;j<v[i].size();++j)
      |              ~^~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 47340 KB Output is correct
2 Correct 29 ms 47468 KB Output is correct
3 Correct 29 ms 47340 KB Output is correct
4 Correct 35 ms 47340 KB Output is correct
5 Correct 30 ms 47340 KB Output is correct
6 Correct 30 ms 47440 KB Output is correct
7 Correct 30 ms 47340 KB Output is correct
8 Correct 31 ms 47340 KB Output is correct
9 Correct 30 ms 47340 KB Output is correct
10 Correct 29 ms 47460 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 47340 KB Output is correct
2 Correct 29 ms 47468 KB Output is correct
3 Correct 29 ms 47340 KB Output is correct
4 Correct 35 ms 47340 KB Output is correct
5 Correct 30 ms 47340 KB Output is correct
6 Correct 30 ms 47440 KB Output is correct
7 Correct 30 ms 47340 KB Output is correct
8 Correct 31 ms 47340 KB Output is correct
9 Correct 30 ms 47340 KB Output is correct
10 Correct 29 ms 47460 KB Output is correct
11 Correct 32 ms 47468 KB Output is correct
12 Correct 33 ms 47596 KB Output is correct
13 Correct 32 ms 47596 KB Output is correct
14 Correct 34 ms 47596 KB Output is correct
15 Correct 34 ms 47596 KB Output is correct
16 Correct 37 ms 47596 KB Output is correct
17 Correct 32 ms 47596 KB Output is correct
18 Correct 32 ms 47596 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1082 ms 102892 KB Output is correct
2 Correct 1102 ms 109804 KB Output is correct
3 Correct 1085 ms 109828 KB Output is correct
4 Correct 1091 ms 109804 KB Output is correct
5 Correct 967 ms 89580 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 110 ms 52972 KB Output is correct
2 Correct 100 ms 52972 KB Output is correct
3 Correct 96 ms 50924 KB Output is correct
4 Correct 95 ms 50924 KB Output is correct
5 Correct 107 ms 50924 KB Output is correct
6 Correct 81 ms 50540 KB Output is correct
7 Correct 78 ms 50540 KB Output is correct
8 Correct 87 ms 51112 KB Output is correct
9 Correct 66 ms 49572 KB Output is correct
10 Correct 89 ms 51112 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 47340 KB Output is correct
2 Correct 29 ms 47468 KB Output is correct
3 Correct 29 ms 47340 KB Output is correct
4 Correct 35 ms 47340 KB Output is correct
5 Correct 30 ms 47340 KB Output is correct
6 Correct 30 ms 47440 KB Output is correct
7 Correct 30 ms 47340 KB Output is correct
8 Correct 31 ms 47340 KB Output is correct
9 Correct 30 ms 47340 KB Output is correct
10 Correct 29 ms 47460 KB Output is correct
11 Correct 32 ms 47468 KB Output is correct
12 Correct 33 ms 47596 KB Output is correct
13 Correct 32 ms 47596 KB Output is correct
14 Correct 34 ms 47596 KB Output is correct
15 Correct 34 ms 47596 KB Output is correct
16 Correct 37 ms 47596 KB Output is correct
17 Correct 32 ms 47596 KB Output is correct
18 Correct 32 ms 47596 KB Output is correct
19 Correct 222 ms 58604 KB Output is correct
20 Correct 226 ms 58732 KB Output is correct
21 Correct 187 ms 58220 KB Output is correct
22 Correct 187 ms 58220 KB Output is correct
23 Correct 197 ms 58220 KB Output is correct
24 Correct 190 ms 54112 KB Output is correct
25 Correct 160 ms 54124 KB Output is correct
26 Correct 181 ms 54228 KB Output is correct
27 Correct 176 ms 54136 KB Output is correct
28 Correct 192 ms 54252 KB Output is correct
29 Correct 195 ms 54636 KB Output is correct
30 Correct 190 ms 54636 KB Output is correct
31 Correct 196 ms 54508 KB Output is correct
32 Correct 194 ms 54636 KB Output is correct
33 Correct 202 ms 54508 KB Output is correct
34 Correct 151 ms 53496 KB Output is correct
35 Correct 153 ms 53484 KB Output is correct
36 Correct 143 ms 53484 KB Output is correct
37 Correct 144 ms 53536 KB Output is correct
38 Correct 148 ms 53484 KB Output is correct
39 Correct 171 ms 55204 KB Output is correct
40 Correct 143 ms 53152 KB Output is correct
41 Correct 168 ms 54740 KB Output is correct

Subtask #6
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 47340 KB Output is correct
2 Correct 29 ms 47468 KB Output is correct
3 Correct 29 ms 47340 KB Output is correct
4 Correct 35 ms 47340 KB Output is correct
5 Correct 30 ms 47340 KB Output is correct
6 Correct 30 ms 47440 KB Output is correct
7 Correct 30 ms 47340 KB Output is correct
8 Correct 31 ms 47340 KB Output is correct
9 Correct 30 ms 47340 KB Output is correct
10 Correct 29 ms 47460 KB Output is correct
11 Correct 32 ms 47468 KB Output is correct
12 Correct 33 ms 47596 KB Output is correct
13 Correct 32 ms 47596 KB Output is correct
14 Correct 34 ms 47596 KB Output is correct
15 Correct 34 ms 47596 KB Output is correct
16 Correct 37 ms 47596 KB Output is correct
17 Correct 32 ms 47596 KB Output is correct
18 Correct 32 ms 47596 KB Output is correct
19 Correct 1082 ms 102892 KB Output is correct
20 Correct 1102 ms 109804 KB Output is correct
21 Correct 1085 ms 109828 KB Output is correct
22 Correct 1091 ms 109804 KB Output is correct
23 Correct 967 ms 89580 KB Output is correct
24 Correct 110 ms 52972 KB Output is correct
25 Correct 100 ms 52972 KB Output is correct
26 Correct 96 ms 50924 KB Output is correct
27 Correct 95 ms 50924 KB Output is correct
28 Correct 107 ms 50924 KB Output is correct
29 Correct 81 ms 50540 KB Output is correct
30 Correct 78 ms 50540 KB Output is correct
31 Correct 87 ms 51112 KB Output is correct
32 Correct 66 ms 49572 KB Output is correct
33 Correct 89 ms 51112 KB Output is correct
34 Correct 222 ms 58604 KB Output is correct
35 Correct 226 ms 58732 KB Output is correct
36 Correct 187 ms 58220 KB Output is correct
37 Correct 187 ms 58220 KB Output is correct
38 Correct 197 ms 58220 KB Output is correct
39 Correct 190 ms 54112 KB Output is correct
40 Correct 160 ms 54124 KB Output is correct
41 Correct 181 ms 54228 KB Output is correct
42 Correct 176 ms 54136 KB Output is correct
43 Correct 192 ms 54252 KB Output is correct
44 Correct 195 ms 54636 KB Output is correct
45 Correct 190 ms 54636 KB Output is correct
46 Correct 196 ms 54508 KB Output is correct
47 Correct 194 ms 54636 KB Output is correct
48 Correct 202 ms 54508 KB Output is correct
49 Correct 151 ms 53496 KB Output is correct
50 Correct 153 ms 53484 KB Output is correct
51 Correct 143 ms 53484 KB Output is correct
52 Correct 144 ms 53536 KB Output is correct
53 Correct 148 ms 53484 KB Output is correct
54 Correct 171 ms 55204 KB Output is correct
55 Correct 143 ms 53152 KB Output is correct
56 Correct 168 ms 54740 KB Output is correct
57 Correct 1125 ms 111308 KB Output is correct
58 Correct 1104 ms 110956 KB Output is correct
59 Correct 1053 ms 108780 KB Output is correct
60 Correct 1044 ms 109044 KB Output is correct
61 Correct 1087 ms 108944 KB Output is correct
62 Correct 1071 ms 108908 KB Output is correct
63 Correct 715 ms 84500 KB Output is correct
64 Correct 671 ms 84480 KB Output is correct
65 Correct 931 ms 88732 KB Output is correct
66 Correct 920 ms 88616 KB Output is correct
67 Correct 928 ms 88684 KB Output is correct
68 Correct 965 ms 90860 KB Output is correct
69 Correct 961 ms 90860 KB Output is correct
70 Correct 947 ms 90348 KB Output is correct
71 Correct 943 ms 90348 KB Output is correct
72 Correct 954 ms 90428 KB Output is correct
73 Correct 587 ms 83420 KB Output is correct
74 Correct 629 ms 83472 KB Output is correct
75 Correct 596 ms 83564 KB Output is correct
76 Correct 592 ms 83692 KB Output is correct
77 Correct 606 ms 83692 KB Output is correct
78 Correct 854 ms 92828 KB Output is correct
79 Correct 645 ms 80996 KB Output is correct
80 Correct 819 ms 90976 KB Output is correct