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Submission #494122

# Submission time Handle Problem Language Result Execution time Memory
494122 2021-12-14T12:13:36 Z truongxuan_dh Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++14
100 / 100
 2208 ms 147376 KB 
#include <bits/stdc++.h>
#define MAXN 1000007
using namespace std;
int seg[4*MAXN],a[MAXN],ans[MAXN];
vector<int> ul[MAXN],uk[MAXN],ind[MAXN];
void upd(int l,int r,int x,int v,int ind)
{
	if(l==r) {seg[ind]=v; return;}
	int s=(l+r)/2;
	if(x<=s) upd(l,s,x,v,2*ind);
	else upd(s+1,r,x,v,2*ind+1);
	seg[ind]=max(seg[2*ind],seg[2*ind+1]);
}
int nmax(int l,int r,int lt,int rt,int ind)
{
	if(l>=lt && r<=rt) return seg[ind];
	if(l>rt || r<lt) return 0;
	int s=(l+r)/2;
	return max(nmax(l,s,lt,rt,2*ind),nmax(s+1,r,lt,rt,2*ind+1));
}
int main()
{
	int n,m;
	scanf("%d%d",&n,&m);
	for(int i=1;i<=n;i++) scanf("%d",&a[i]);
	a[0]=1000000007;
	for(int i=0;i<m;i++)
	{
		int t1,t2,t3;
		scanf("%d%d%d",&t1,&t2,&t3);
		ul[t2].push_back(t1); uk[t2].push_back(t3); ind[t2].push_back(i);
	}
	stack<int> st; st.push(0);
	for(int i=1;i<=n;i++)
	{
		while(a[st.top()]<=a[i]) st.pop();
		upd(0,n,st.top(),a[i]+a[st.top()],1);
		st.push(i);
		for(int j=0;j<ul[i].size();j++) ans[ind[i][j]]=(nmax(0,n,ul[i][j],i,1)>uk[i][j]?0:1);
	}
	for(int i=0;i<m;i++) printf("%d\n",ans[i]);
}

Compilation message

sortbooks.cpp: In function 'int main()':
sortbooks.cpp:39:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |   for(int j=0;j<ul[i].size();j++) ans[ind[i][j]]=(nmax(0,n,ul[i][j],i,1)>uk[i][j]?0:1);
      |               ~^~~~~~~~~~~~~
sortbooks.cpp:24:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |  scanf("%d%d",&n,&m);
      |  ~~~~~^~~~~~~~~~~~~~
sortbooks.cpp:25:29: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |  for(int i=1;i<=n;i++) scanf("%d",&a[i]);
      |                        ~~~~~^~~~~~~~~~~~
sortbooks.cpp:30:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |   scanf("%d%d%d",&t1,&t2,&t3);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 70732 KB Output is correct
2 Correct 36 ms 70748 KB Output is correct
3 Correct 39 ms 70700 KB Output is correct
4 Correct 43 ms 70736 KB Output is correct
5 Correct 37 ms 70688 KB Output is correct
6 Correct 39 ms 70772 KB Output is correct
7 Correct 40 ms 70768 KB Output is correct
8 Correct 37 ms 70800 KB Output is correct
9 Correct 38 ms 70724 KB Output is correct
10 Correct 37 ms 70724 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 70732 KB Output is correct
2 Correct 36 ms 70748 KB Output is correct
3 Correct 39 ms 70700 KB Output is correct
4 Correct 43 ms 70736 KB Output is correct
5 Correct 37 ms 70688 KB Output is correct
6 Correct 39 ms 70772 KB Output is correct
7 Correct 40 ms 70768 KB Output is correct
8 Correct 37 ms 70800 KB Output is correct
9 Correct 38 ms 70724 KB Output is correct
10 Correct 37 ms 70724 KB Output is correct
11 Correct 46 ms 70876 KB Output is correct
12 Correct 40 ms 71024 KB Output is correct
13 Correct 40 ms 71140 KB Output is correct
14 Correct 45 ms 71260 KB Output is correct
15 Correct 48 ms 71192 KB Output is correct
16 Correct 45 ms 71172 KB Output is correct
17 Correct 54 ms 71024 KB Output is correct
18 Correct 46 ms 71132 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2171 ms 143344 KB Output is correct
2 Correct 2156 ms 144348 KB Output is correct
3 Correct 2208 ms 144324 KB Output is correct
4 Correct 2201 ms 144284 KB Output is correct
5 Correct 1917 ms 136292 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 194 ms 78328 KB Output is correct
2 Correct 190 ms 77252 KB Output is correct
3 Correct 164 ms 77824 KB Output is correct
4 Correct 178 ms 78324 KB Output is correct
5 Correct 195 ms 78740 KB Output is correct
6 Correct 126 ms 75312 KB Output is correct
7 Correct 125 ms 75268 KB Output is correct
8 Correct 144 ms 77964 KB Output is correct
9 Correct 83 ms 74056 KB Output is correct
10 Correct 161 ms 77952 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 70732 KB Output is correct
2 Correct 36 ms 70748 KB Output is correct
3 Correct 39 ms 70700 KB Output is correct
4 Correct 43 ms 70736 KB Output is correct
5 Correct 37 ms 70688 KB Output is correct
6 Correct 39 ms 70772 KB Output is correct
7 Correct 40 ms 70768 KB Output is correct
8 Correct 37 ms 70800 KB Output is correct
9 Correct 38 ms 70724 KB Output is correct
10 Correct 37 ms 70724 KB Output is correct
11 Correct 46 ms 70876 KB Output is correct
12 Correct 40 ms 71024 KB Output is correct
13 Correct 40 ms 71140 KB Output is correct
14 Correct 45 ms 71260 KB Output is correct
15 Correct 48 ms 71192 KB Output is correct
16 Correct 45 ms 71172 KB Output is correct
17 Correct 54 ms 71024 KB Output is correct
18 Correct 46 ms 71132 KB Output is correct
19 Correct 417 ms 85372 KB Output is correct
20 Correct 398 ms 91020 KB Output is correct
21 Correct 255 ms 85608 KB Output is correct
22 Correct 327 ms 85592 KB Output is correct
23 Correct 265 ms 85780 KB Output is correct
24 Correct 252 ms 83012 KB Output is correct
25 Correct 223 ms 83100 KB Output is correct
26 Correct 368 ms 85528 KB Output is correct
27 Correct 285 ms 85392 KB Output is correct
28 Correct 329 ms 86396 KB Output is correct
29 Correct 405 ms 89028 KB Output is correct
30 Correct 360 ms 89088 KB Output is correct
31 Correct 399 ms 88900 KB Output is correct
32 Correct 362 ms 88828 KB Output is correct
33 Correct 363 ms 88832 KB Output is correct
34 Correct 220 ms 82420 KB Output is correct
35 Correct 216 ms 82240 KB Output is correct
36 Correct 284 ms 82124 KB Output is correct
37 Correct 208 ms 82132 KB Output is correct
38 Correct 225 ms 82432 KB Output is correct
39 Correct 300 ms 87164 KB Output is correct
40 Correct 318 ms 84656 KB Output is correct
41 Correct 294 ms 86484 KB Output is correct

Subtask #6
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 70732 KB Output is correct
2 Correct 36 ms 70748 KB Output is correct
3 Correct 39 ms 70700 KB Output is correct
4 Correct 43 ms 70736 KB Output is correct
5 Correct 37 ms 70688 KB Output is correct
6 Correct 39 ms 70772 KB Output is correct
7 Correct 40 ms 70768 KB Output is correct
8 Correct 37 ms 70800 KB Output is correct
9 Correct 38 ms 70724 KB Output is correct
10 Correct 37 ms 70724 KB Output is correct
11 Correct 46 ms 70876 KB Output is correct
12 Correct 40 ms 71024 KB Output is correct
13 Correct 40 ms 71140 KB Output is correct
14 Correct 45 ms 71260 KB Output is correct
15 Correct 48 ms 71192 KB Output is correct
16 Correct 45 ms 71172 KB Output is correct
17 Correct 54 ms 71024 KB Output is correct
18 Correct 46 ms 71132 KB Output is correct
19 Correct 2171 ms 143344 KB Output is correct
20 Correct 2156 ms 144348 KB Output is correct
21 Correct 2208 ms 144324 KB Output is correct
22 Correct 2201 ms 144284 KB Output is correct
23 Correct 1917 ms 136292 KB Output is correct
24 Correct 194 ms 78328 KB Output is correct
25 Correct 190 ms 77252 KB Output is correct
26 Correct 164 ms 77824 KB Output is correct
27 Correct 178 ms 78324 KB Output is correct
28 Correct 195 ms 78740 KB Output is correct
29 Correct 126 ms 75312 KB Output is correct
30 Correct 125 ms 75268 KB Output is correct
31 Correct 144 ms 77964 KB Output is correct
32 Correct 83 ms 74056 KB Output is correct
33 Correct 161 ms 77952 KB Output is correct
34 Correct 417 ms 85372 KB Output is correct
35 Correct 398 ms 91020 KB Output is correct
36 Correct 255 ms 85608 KB Output is correct
37 Correct 327 ms 85592 KB Output is correct
38 Correct 265 ms 85780 KB Output is correct
39 Correct 252 ms 83012 KB Output is correct
40 Correct 223 ms 83100 KB Output is correct
41 Correct 368 ms 85528 KB Output is correct
42 Correct 285 ms 85392 KB Output is correct
43 Correct 329 ms 86396 KB Output is correct
44 Correct 405 ms 89028 KB Output is correct
45 Correct 360 ms 89088 KB Output is correct
46 Correct 399 ms 88900 KB Output is correct
47 Correct 362 ms 88828 KB Output is correct
48 Correct 363 ms 88832 KB Output is correct
49 Correct 220 ms 82420 KB Output is correct
50 Correct 216 ms 82240 KB Output is correct
51 Correct 284 ms 82124 KB Output is correct
52 Correct 208 ms 82132 KB Output is correct
53 Correct 225 ms 82432 KB Output is correct
54 Correct 300 ms 87164 KB Output is correct
55 Correct 318 ms 84656 KB Output is correct
56 Correct 294 ms 86484 KB Output is correct
57 Correct 2078 ms 147376 KB Output is correct
58 Correct 2045 ms 147212 KB Output is correct
59 Correct 1956 ms 134876 KB Output is correct
60 Correct 1908 ms 134788 KB Output is correct
61 Correct 1816 ms 134808 KB Output is correct
62 Correct 1726 ms 134832 KB Output is correct
63 Correct 1030 ms 108280 KB Output is correct
64 Correct 1052 ms 108068 KB Output is correct
65 Correct 1718 ms 124980 KB Output is correct
66 Correct 1653 ms 125128 KB Output is correct
67 Correct 1663 ms 125980 KB Output is correct
68 Correct 1873 ms 138944 KB Output is correct
69 Correct 1811 ms 138504 KB Output is correct
70 Correct 1736 ms 135776 KB Output is correct
71 Correct 1777 ms 134724 KB Output is correct
72 Correct 1830 ms 134180 KB Output is correct
73 Correct 945 ms 103428 KB Output is correct
74 Correct 951 ms 102708 KB Output is correct
75 Correct 940 ms 102056 KB Output is correct
76 Correct 949 ms 101700 KB Output is correct
77 Correct 923 ms 100440 KB Output is correct
78 Correct 1565 ms 129208 KB Output is correct
79 Correct 1134 ms 117268 KB Output is correct
80 Correct 1461 ms 127252 KB Output is correct