oj.uz

Submission #70724

# Submission time Handle Problem Language Result Execution time Memory
70724 2018-08-23T09:09:09 Z yogahmad Port Facility (JOI17_port_facility) C++14
100 / 100
 3100 ms 586484 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#define fbo find_by_order
#define ook order_of_key
#define f first
#define s second
#define pb push_back
#define reset(a,b) memset(a,b,sizeof a);
#define MOD 1000000007
#define MID (l+r)/2
#define ALL(x) x.begin(),x.end()
#define debug(x) cout<<#x<<" = "<<(x)<<endl
#define mx 2000003
#define pc(x) putchar_unlocked(x);
typedef tree<long long, null_type, less<long long>, rb_tree_tag, tree_order_statistics_node_update> pbds;

vector<int>ve[mx*4];
pair<int,int>a[mx];
int n,par[mx];

int find(int x){
//	debug(x);
	if(x==par[x])return x;
	return par[x]=find(par[x]);
}

void gabung(int idx,int l,int r,int fl,int fr,int val){
	if(fl>r || fr<l)return;
	if(ve[idx].size()==0)return;
	if(fl<=l && r<=fr){
	//	debug(val);
		for(int i:ve[idx]){
			int j=i;
			if(j<=n)j+=n;
			else j-=n;
			i=find(i);
	//		debug(i);
			j=find(j);
			par[i]=find(val+n);
			par[j]=find(val);
		}
		ve[idx].clear();
		ve[idx].pb(find(val+n));
		return;
	}
	if(!(fl>MID || fr<l))gabung(idx*2,l,MID,fl,fr,val);
	if(!(fl>r || fr<MID+1))gabung(idx*2+1,MID+1,r,fl,fr,val);
}

void upd(int idx,int l,int r,int in,int val){
	ve[idx].pb(find(val));
	if(l==r)return;
	if(in<=MID)upd(2*idx,l,MID,in,val);
	else upd(2*idx+1,MID+1,r,in,val);
}

int main(){
	scanf("%d",&n);
	for(int i=1;i<=n;i++)scanf("%d%d",&a[i].f,&a[i].s);
	sort(a+1,a+n+1);
	for(int i=1;i<=n*2;i++){
		par[i]=i;
	}
	for(int i=1;i<=n;i++){
		gabung(1,1,n*2,a[i].f,a[i].s,i);
		int x=find(i);
		int y=find(i+n);
		if(x==y){
			cout<<0<<endl;
			return 0;
		}
		upd(1,1,n*2,a[i].s,i);
	}
	for(int i=1;i<=n;i++){
	//	debug(i);
		int x=find(i);
		int y=find(i+n);
		if(x==y){
		//	debug(i);
			cout<<0<<endl;
			return 0;
		}
	}
	set<int>isi;
	for(int i=1;i<=n*2;i++){
		isi.insert(find(i));
	}
	int tot=isi.size();
	assert(tot%2==0);
	tot/=2;
	long long jaw=1;
	for(int i=1;i<=tot;i++){
		jaw=jaw*2%MOD;
	}
	cout<<jaw<<endl;
}

Compilation message

port_facility.cpp: In function 'int main()':
port_facility.cpp:61:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
port_facility.cpp:62:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1;i<=n;i++)scanf("%d%d",&a[i].f,&a[i].s);
                       ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 166 ms 188152 KB Output is correct
2 Correct 180 ms 188220 KB Output is correct
3 Correct 192 ms 188296 KB Output is correct
4 Correct 171 ms 188372 KB Output is correct
5 Correct 166 ms 188372 KB Output is correct
6 Correct 175 ms 188372 KB Output is correct
7 Correct 187 ms 188456 KB Output is correct
8 Correct 194 ms 188456 KB Output is correct
9 Correct 172 ms 188504 KB Output is correct
10 Correct 162 ms 188504 KB Output is correct
11 Correct 169 ms 188504 KB Output is correct
12 Correct 208 ms 188524 KB Output is correct
13 Correct 218 ms 188524 KB Output is correct
14 Correct 177 ms 188524 KB Output is correct
15 Correct 182 ms 188524 KB Output is correct
16 Correct 210 ms 188524 KB Output is correct
17 Correct 177 ms 188524 KB Output is correct
18 Correct 216 ms 188524 KB Output is correct
19 Correct 174 ms 188524 KB Output is correct
20 Correct 167 ms 188524 KB Output is correct
21 Correct 173 ms 188524 KB Output is correct
22 Correct 176 ms 188556 KB Output is correct
23 Correct 172 ms 188556 KB Output is correct
24 Correct 175 ms 188556 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 166 ms 188152 KB Output is correct
2 Correct 180 ms 188220 KB Output is correct
3 Correct 192 ms 188296 KB Output is correct
4 Correct 171 ms 188372 KB Output is correct
5 Correct 166 ms 188372 KB Output is correct
6 Correct 175 ms 188372 KB Output is correct
7 Correct 187 ms 188456 KB Output is correct
8 Correct 194 ms 188456 KB Output is correct
9 Correct 172 ms 188504 KB Output is correct
10 Correct 162 ms 188504 KB Output is correct
11 Correct 169 ms 188504 KB Output is correct
12 Correct 208 ms 188524 KB Output is correct
13 Correct 218 ms 188524 KB Output is correct
14 Correct 177 ms 188524 KB Output is correct
15 Correct 182 ms 188524 KB Output is correct
16 Correct 210 ms 188524 KB Output is correct
17 Correct 177 ms 188524 KB Output is correct
18 Correct 216 ms 188524 KB Output is correct
19 Correct 174 ms 188524 KB Output is correct
20 Correct 167 ms 188524 KB Output is correct
21 Correct 173 ms 188524 KB Output is correct
22 Correct 176 ms 188556 KB Output is correct
23 Correct 172 ms 188556 KB Output is correct
24 Correct 175 ms 188556 KB Output is correct
25 Correct 204 ms 188740 KB Output is correct
26 Correct 183 ms 188788 KB Output is correct
27 Correct 182 ms 188788 KB Output is correct
28 Correct 174 ms 188788 KB Output is correct
29 Correct 171 ms 188788 KB Output is correct
30 Correct 176 ms 188828 KB Output is correct
31 Correct 239 ms 188828 KB Output is correct
32 Correct 160 ms 188828 KB Output is correct
33 Correct 188 ms 188828 KB Output is correct
34 Correct 197 ms 188828 KB Output is correct
35 Correct 247 ms 188892 KB Output is correct
36 Correct 189 ms 188900 KB Output is correct
37 Correct 184 ms 188900 KB Output is correct
38 Correct 183 ms 188900 KB Output is correct
39 Correct 187 ms 188928 KB Output is correct
40 Correct 203 ms 189004 KB Output is correct
41 Correct 171 ms 189004 KB Output is correct
42 Correct 170 ms 189004 KB Output is correct
43 Correct 197 ms 189004 KB Output is correct
44 Correct 167 ms 189004 KB Output is correct

Subtask #3
56.0 / 56.0

# Verdict Execution time Memory Grader output
1 Correct 166 ms 188152 KB Output is correct
2 Correct 180 ms 188220 KB Output is correct
3 Correct 192 ms 188296 KB Output is correct
4 Correct 171 ms 188372 KB Output is correct
5 Correct 166 ms 188372 KB Output is correct
6 Correct 175 ms 188372 KB Output is correct
7 Correct 187 ms 188456 KB Output is correct
8 Correct 194 ms 188456 KB Output is correct
9 Correct 172 ms 188504 KB Output is correct
10 Correct 162 ms 188504 KB Output is correct
11 Correct 169 ms 188504 KB Output is correct
12 Correct 208 ms 188524 KB Output is correct
13 Correct 218 ms 188524 KB Output is correct
14 Correct 177 ms 188524 KB Output is correct
15 Correct 182 ms 188524 KB Output is correct
16 Correct 210 ms 188524 KB Output is correct
17 Correct 177 ms 188524 KB Output is correct
18 Correct 216 ms 188524 KB Output is correct
19 Correct 174 ms 188524 KB Output is correct
20 Correct 167 ms 188524 KB Output is correct
21 Correct 173 ms 188524 KB Output is correct
22 Correct 176 ms 188556 KB Output is correct
23 Correct 172 ms 188556 KB Output is correct
24 Correct 175 ms 188556 KB Output is correct
25 Correct 204 ms 188740 KB Output is correct
26 Correct 183 ms 188788 KB Output is correct
27 Correct 182 ms 188788 KB Output is correct
28 Correct 174 ms 188788 KB Output is correct
29 Correct 171 ms 188788 KB Output is correct
30 Correct 176 ms 188828 KB Output is correct
31 Correct 239 ms 188828 KB Output is correct
32 Correct 160 ms 188828 KB Output is correct
33 Correct 188 ms 188828 KB Output is correct
34 Correct 197 ms 188828 KB Output is correct
35 Correct 247 ms 188892 KB Output is correct
36 Correct 189 ms 188900 KB Output is correct
37 Correct 184 ms 188900 KB Output is correct
38 Correct 183 ms 188900 KB Output is correct
39 Correct 187 ms 188928 KB Output is correct
40 Correct 203 ms 189004 KB Output is correct
41 Correct 171 ms 189004 KB Output is correct
42 Correct 170 ms 189004 KB Output is correct
43 Correct 197 ms 189004 KB Output is correct
44 Correct 167 ms 189004 KB Output is correct
45 Correct 411 ms 206952 KB Output is correct
46 Correct 399 ms 206952 KB Output is correct
47 Correct 414 ms 207084 KB Output is correct
48 Correct 369 ms 207084 KB Output is correct
49 Correct 389 ms 207084 KB Output is correct
50 Correct 228 ms 207084 KB Output is correct
51 Correct 247 ms 207084 KB Output is correct
52 Correct 429 ms 215520 KB Output is correct
53 Correct 374 ms 215520 KB Output is correct
54 Correct 201 ms 215520 KB Output is correct
55 Correct 210 ms 215520 KB Output is correct
56 Correct 217 ms 215520 KB Output is correct
57 Correct 410 ms 215520 KB Output is correct
58 Correct 407 ms 215520 KB Output is correct
59 Correct 443 ms 215532 KB Output is correct
60 Correct 459 ms 215532 KB Output is correct
61 Correct 411 ms 215532 KB Output is correct
62 Correct 219 ms 215532 KB Output is correct
63 Correct 202 ms 215532 KB Output is correct
64 Correct 222 ms 215532 KB Output is correct
65 Correct 223 ms 215532 KB Output is correct
66 Correct 224 ms 215532 KB Output is correct
67 Correct 377 ms 215532 KB Output is correct
68 Correct 371 ms 215532 KB Output is correct
69 Correct 364 ms 215532 KB Output is correct
70 Correct 380 ms 215532 KB Output is correct
71 Correct 334 ms 215532 KB Output is correct
72 Correct 299 ms 215532 KB Output is correct
73 Correct 357 ms 215532 KB Output is correct
74 Correct 346 ms 215532 KB Output is correct
75 Correct 376 ms 215532 KB Output is correct
76 Correct 344 ms 215532 KB Output is correct
77 Correct 360 ms 215532 KB Output is correct
78 Correct 421 ms 215532 KB Output is correct
79 Correct 480 ms 215532 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 166 ms 188152 KB Output is correct
2 Correct 180 ms 188220 KB Output is correct
3 Correct 192 ms 188296 KB Output is correct
4 Correct 171 ms 188372 KB Output is correct
5 Correct 166 ms 188372 KB Output is correct
6 Correct 175 ms 188372 KB Output is correct
7 Correct 187 ms 188456 KB Output is correct
8 Correct 194 ms 188456 KB Output is correct
9 Correct 172 ms 188504 KB Output is correct
10 Correct 162 ms 188504 KB Output is correct
11 Correct 169 ms 188504 KB Output is correct
12 Correct 208 ms 188524 KB Output is correct
13 Correct 218 ms 188524 KB Output is correct
14 Correct 177 ms 188524 KB Output is correct
15 Correct 182 ms 188524 KB Output is correct
16 Correct 210 ms 188524 KB Output is correct
17 Correct 177 ms 188524 KB Output is correct
18 Correct 216 ms 188524 KB Output is correct
19 Correct 174 ms 188524 KB Output is correct
20 Correct 167 ms 188524 KB Output is correct
21 Correct 173 ms 188524 KB Output is correct
22 Correct 176 ms 188556 KB Output is correct
23 Correct 172 ms 188556 KB Output is correct
24 Correct 175 ms 188556 KB Output is correct
25 Correct 204 ms 188740 KB Output is correct
26 Correct 183 ms 188788 KB Output is correct
27 Correct 182 ms 188788 KB Output is correct
28 Correct 174 ms 188788 KB Output is correct
29 Correct 171 ms 188788 KB Output is correct
30 Correct 176 ms 188828 KB Output is correct
31 Correct 239 ms 188828 KB Output is correct
32 Correct 160 ms 188828 KB Output is correct
33 Correct 188 ms 188828 KB Output is correct
34 Correct 197 ms 188828 KB Output is correct
35 Correct 247 ms 188892 KB Output is correct
36 Correct 189 ms 188900 KB Output is correct
37 Correct 184 ms 188900 KB Output is correct
38 Correct 183 ms 188900 KB Output is correct
39 Correct 187 ms 188928 KB Output is correct
40 Correct 203 ms 189004 KB Output is correct
41 Correct 171 ms 189004 KB Output is correct
42 Correct 170 ms 189004 KB Output is correct
43 Correct 197 ms 189004 KB Output is correct
44 Correct 167 ms 189004 KB Output is correct
45 Correct 411 ms 206952 KB Output is correct
46 Correct 399 ms 206952 KB Output is correct
47 Correct 414 ms 207084 KB Output is correct
48 Correct 369 ms 207084 KB Output is correct
49 Correct 389 ms 207084 KB Output is correct
50 Correct 228 ms 207084 KB Output is correct
51 Correct 247 ms 207084 KB Output is correct
52 Correct 429 ms 215520 KB Output is correct
53 Correct 374 ms 215520 KB Output is correct
54 Correct 201 ms 215520 KB Output is correct
55 Correct 210 ms 215520 KB Output is correct
56 Correct 217 ms 215520 KB Output is correct
57 Correct 410 ms 215520 KB Output is correct
58 Correct 407 ms 215520 KB Output is correct
59 Correct 443 ms 215532 KB Output is correct
60 Correct 459 ms 215532 KB Output is correct
61 Correct 411 ms 215532 KB Output is correct
62 Correct 219 ms 215532 KB Output is correct
63 Correct 202 ms 215532 KB Output is correct
64 Correct 222 ms 215532 KB Output is correct
65 Correct 223 ms 215532 KB Output is correct
66 Correct 224 ms 215532 KB Output is correct
67 Correct 377 ms 215532 KB Output is correct
68 Correct 371 ms 215532 KB Output is correct
69 Correct 364 ms 215532 KB Output is correct
70 Correct 380 ms 215532 KB Output is correct
71 Correct 334 ms 215532 KB Output is correct
72 Correct 299 ms 215532 KB Output is correct
73 Correct 357 ms 215532 KB Output is correct
74 Correct 346 ms 215532 KB Output is correct
75 Correct 376 ms 215532 KB Output is correct
76 Correct 344 ms 215532 KB Output is correct
77 Correct 360 ms 215532 KB Output is correct
78 Correct 421 ms 215532 KB Output is correct
79 Correct 480 ms 215532 KB Output is correct
80 Correct 2566 ms 382116 KB Output is correct
81 Correct 2646 ms 382552 KB Output is correct
82 Correct 2878 ms 384172 KB Output is correct
83 Correct 3100 ms 384172 KB Output is correct
84 Correct 2707 ms 384172 KB Output is correct
85 Correct 1336 ms 384172 KB Output is correct
86 Correct 1584 ms 384172 KB Output is correct
87 Correct 2686 ms 461468 KB Output is correct
88 Correct 2933 ms 461468 KB Output is correct
89 Correct 636 ms 461468 KB Output is correct
90 Correct 603 ms 461468 KB Output is correct
91 Correct 666 ms 461468 KB Output is correct
92 Correct 2658 ms 461468 KB Output is correct
93 Correct 2923 ms 461468 KB Output is correct
94 Correct 2830 ms 461468 KB Output is correct
95 Correct 2986 ms 461468 KB Output is correct
96 Correct 2801 ms 461468 KB Output is correct
97 Correct 1123 ms 461468 KB Output is correct
98 Correct 1418 ms 461468 KB Output is correct
99 Correct 833 ms 461468 KB Output is correct
100 Correct 691 ms 461468 KB Output is correct
101 Correct 728 ms 461468 KB Output is correct
102 Correct 2636 ms 461468 KB Output is correct
103 Correct 2599 ms 461468 KB Output is correct
104 Correct 2380 ms 461468 KB Output is correct
105 Correct 2324 ms 461468 KB Output is correct
106 Correct 1962 ms 461468 KB Output is correct
107 Correct 1924 ms 461468 KB Output is correct
108 Correct 1870 ms 462272 KB Output is correct
109 Correct 1830 ms 476896 KB Output is correct
110 Correct 2072 ms 529072 KB Output is correct
111 Correct 2147 ms 543652 KB Output is correct
112 Correct 1958 ms 558064 KB Output is correct
113 Correct 2655 ms 573548 KB Output is correct
114 Correct 2916 ms 586484 KB Output is correct