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Submission #988482

# Submission time Handle Problem Language Result Execution time Memory
988482 2024-05-24T20:26:12 Z amirhoseinfar1385 Growing Vegetables is Fun 5 (JOI24_vegetables5) C++17
30 / 100
 5000 ms 86836 KB 
#include<bits/stdc++.h>
#pragma GCC optimize("O6,unroll-loops")
#pragma GCC target("avx2")
using namespace std;
const int maxn=300000+10,maxh=maxn*2;
int all[maxn][2],n,inf=1e9,kaf=(1<<20),sz,kk=(1<<19)-1,lnk[maxn][2];
vector<int>allb,allc,alla;
 
struct segment{
	int ps[(1<<21)],sum[(1<<21)];
	void clear(){
		memset(ps,0,sizeof(ps));
		memset(sum,0,sizeof(sum));
	}
	void upd(int i,int w){
		i+=kaf;
		sum[i]+=w;
		i>>=1;
		while(i>0){
			sum[i]+=w;
			ps[i]=min(ps[(i<<1)],sum[(i<<1)]+ps[(i<<1)^1]);
			i>>=1;
		}
		return ;
	}
}segsb,segpb,segsc,segpc;
 
void clear(){
	segsb.clear();
	segpb.clear();
	segsc.clear();
	segpc.clear();
}
 
void fastscan(int &number) { 
    register int c; 
    number = 0; 
    c = getchar(); 
    for (; (c>47 && c<58); c=getchar()) 
        number = number *10 + c - 48; 
} 
 
void vorod(){
	fastscan(n);
	alla.push_back(-1);
	for(int i=0;i<n;i++){
		fastscan(all[i][0]);
		alla.push_back(all[i][0]);
	}
	for(int i=n-1;i>=0;i--){
		fastscan(all[i][1]);
		alla.push_back(all[i][1]);
	}
	sort(alla.begin(),alla.end());
	alla.resize(unique(alla.begin(),alla.end())-alla.begin());
	allb.resize(n);
	allc.resize(n);
	for(int i=0;i<n;i++){
		fastscan(allb[i]);
	}
	for(int i=0;i<n;i++){
		fastscan(allc[i]);
	}
	sort(allb.begin(),allb.end());
	sort(allc.begin(),allc.end());
	for(int i=0;i<n;i++){
		lnk[i][0]=lower_bound(alla.begin(),alla.end(),all[i][0])-alla.begin();
		lnk[i][1]=lower_bound(alla.begin(),alla.end(),all[i][1])-alla.begin();
	}
	sz=alla.size();
}
 
void inssufb(int ind){
	segsb.upd(ind,1);
}
 
void inspsb(int ind){
	segpb.upd(maxh-ind,1);
}
 
void inssufc(int ind){
	segsc.upd(ind,1);
}
 
void inspsc(int ind){
	segpc.upd(maxh-ind,1);
}
 
void insb(int w,int ind){
	int l=lnk[w][ind];
	segsb.upd(l,-1);
	segpb.upd(maxh-l,-1);
}
 
void insc(int w,int ind){
	int l=lnk[w][ind];
	segsc.upd(l,-1);
	segpc.upd(maxh-l,-1);
}
 
void eraseb(int w,int ind){
	int l=lnk[w][ind];
	segsb.upd(l,1);
	segpb.upd(maxh-l,1);
}
 
void erasec(int w,int ind){
	int l=lnk[w][ind];
	segsc.upd(l,1);
	segpc.upd(maxh-l,1);
}
 
bool ch(){
	if(segpc.ps[1]<0||segsb.ps[1]<0||segsc.ps[1]<0||segpb.ps[1]<0){
		return 0;
	}
	return 1;
}
 
bool check(int mid){
	clear();
	int l=0,r=0;
	for(int i=0;i<n;i++){
		while(l<sz&&alla[l]<allb[i]-mid){
			l++;
		}
		inssufb(l);
		while(r<sz&&alla[r]<=allb[i]+mid){
			r++;
		}
		inspsb(r-1);
	}
	l=0,r=0;
	for(int i=0;i<n;i++){
		while(l<sz&&alla[l]<allc[i]-mid){
			l++;
		}
		inssufc(l);
		while(r<sz&&alla[r]<=allc[i]+mid){
			r++;
		}
		inspsc(r-1);
	}
	for(int i=0;i<n;i++){
		insb(i,0);
		insc(i,1);
	}
	for(int i=0,j=n-1;i<n;i++,j--){
		if(ch()==1){
			return 1;
		}
		eraseb(i,0);
		erasec(j,1);
		insb(j,1);
		insc(i,0);
	}
	return ch();
}
 
int solve(){
	int low=-1,high=1e9+5,mid;	
	while(high-low>1){
		mid=(high+low)/2;
		if(check(mid)){
			high=mid;
		}else{
			low=mid;
		}
	}	
	return high;
}
 
int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	vorod();
	int mainres=inf;
	mainres=solve();
	swap(allb,allc);
	mainres=min(mainres,solve());
	cout<<mainres<<"\n";
}

Compilation message

Main.cpp: In function 'void fastscan(int&)':
Main.cpp:36:18: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   36 |     register int c;
      |                  ^

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 471 ms 68144 KB Output is correct
2 Correct 461 ms 68092 KB Output is correct
3 Correct 417 ms 68324 KB Output is correct
4 Correct 460 ms 68264 KB Output is correct
5 Correct 438 ms 68332 KB Output is correct
6 Correct 433 ms 68328 KB Output is correct
7 Correct 462 ms 68332 KB Output is correct
8 Correct 414 ms 68436 KB Output is correct
9 Correct 462 ms 68324 KB Output is correct
10 Correct 368 ms 68180 KB Output is correct
11 Correct 456 ms 68532 KB Output is correct
12 Correct 467 ms 68180 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 471 ms 68144 KB Output is correct
2 Correct 461 ms 68092 KB Output is correct
3 Correct 417 ms 68324 KB Output is correct
4 Correct 460 ms 68264 KB Output is correct
5 Correct 438 ms 68332 KB Output is correct
6 Correct 433 ms 68328 KB Output is correct
7 Correct 462 ms 68332 KB Output is correct
8 Correct 414 ms 68436 KB Output is correct
9 Correct 462 ms 68324 KB Output is correct
10 Correct 368 ms 68180 KB Output is correct
11 Correct 456 ms 68532 KB Output is correct
12 Correct 467 ms 68180 KB Output is correct
13 Correct 463 ms 68324 KB Output is correct
14 Correct 374 ms 68528 KB Output is correct
15 Correct 461 ms 68328 KB Output is correct
16 Correct 462 ms 68328 KB Output is correct
17 Correct 477 ms 68180 KB Output is correct
18 Correct 430 ms 68328 KB Output is correct
19 Correct 468 ms 68328 KB Output is correct
20 Correct 463 ms 68180 KB Output is correct
21 Correct 458 ms 68440 KB Output is correct
22 Correct 464 ms 68328 KB Output is correct
23 Correct 380 ms 68140 KB Output is correct
24 Correct 455 ms 68324 KB Output is correct
25 Correct 382 ms 68328 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 471 ms 68144 KB Output is correct
2 Correct 461 ms 68092 KB Output is correct
3 Correct 417 ms 68324 KB Output is correct
4 Correct 460 ms 68264 KB Output is correct
5 Correct 438 ms 68332 KB Output is correct
6 Correct 433 ms 68328 KB Output is correct
7 Correct 462 ms 68332 KB Output is correct
8 Correct 414 ms 68436 KB Output is correct
9 Correct 462 ms 68324 KB Output is correct
10 Correct 368 ms 68180 KB Output is correct
11 Correct 456 ms 68532 KB Output is correct
12 Correct 467 ms 68180 KB Output is correct
13 Correct 463 ms 68324 KB Output is correct
14 Correct 374 ms 68528 KB Output is correct
15 Correct 461 ms 68328 KB Output is correct
16 Correct 462 ms 68328 KB Output is correct
17 Correct 477 ms 68180 KB Output is correct
18 Correct 430 ms 68328 KB Output is correct
19 Correct 468 ms 68328 KB Output is correct
20 Correct 463 ms 68180 KB Output is correct
21 Correct 458 ms 68440 KB Output is correct
22 Correct 464 ms 68328 KB Output is correct
23 Correct 380 ms 68140 KB Output is correct
24 Correct 455 ms 68324 KB Output is correct
25 Correct 382 ms 68328 KB Output is correct
26 Correct 780 ms 68448 KB Output is correct
27 Correct 732 ms 68420 KB Output is correct
28 Correct 879 ms 68388 KB Output is correct
29 Correct 483 ms 68328 KB Output is correct
30 Correct 656 ms 68444 KB Output is correct
31 Correct 729 ms 68176 KB Output is correct
32 Correct 628 ms 68432 KB Output is correct
33 Correct 544 ms 68436 KB Output is correct
34 Correct 798 ms 68436 KB Output is correct
35 Correct 813 ms 68416 KB Output is correct
36 Correct 671 ms 68440 KB Output is correct
37 Correct 1162 ms 68440 KB Output is correct
38 Correct 1190 ms 68452 KB Output is correct
39 Correct 1152 ms 68460 KB Output is correct
40 Correct 711 ms 68408 KB Output is correct

Subtask #4
0 / 37.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5099 ms 86836 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 471 ms 68144 KB Output is correct
2 Correct 461 ms 68092 KB Output is correct
3 Correct 417 ms 68324 KB Output is correct
4 Correct 460 ms 68264 KB Output is correct
5 Correct 438 ms 68332 KB Output is correct
6 Correct 433 ms 68328 KB Output is correct
7 Correct 462 ms 68332 KB Output is correct
8 Correct 414 ms 68436 KB Output is correct
9 Correct 462 ms 68324 KB Output is correct
10 Correct 368 ms 68180 KB Output is correct
11 Correct 456 ms 68532 KB Output is correct
12 Correct 467 ms 68180 KB Output is correct
13 Correct 463 ms 68324 KB Output is correct
14 Correct 374 ms 68528 KB Output is correct
15 Correct 461 ms 68328 KB Output is correct
16 Correct 462 ms 68328 KB Output is correct
17 Correct 477 ms 68180 KB Output is correct
18 Correct 430 ms 68328 KB Output is correct
19 Correct 468 ms 68328 KB Output is correct
20 Correct 463 ms 68180 KB Output is correct
21 Correct 458 ms 68440 KB Output is correct
22 Correct 464 ms 68328 KB Output is correct
23 Correct 380 ms 68140 KB Output is correct
24 Correct 455 ms 68324 KB Output is correct
25 Correct 382 ms 68328 KB Output is correct
26 Correct 780 ms 68448 KB Output is correct
27 Correct 732 ms 68420 KB Output is correct
28 Correct 879 ms 68388 KB Output is correct
29 Correct 483 ms 68328 KB Output is correct
30 Correct 656 ms 68444 KB Output is correct
31 Correct 729 ms 68176 KB Output is correct
32 Correct 628 ms 68432 KB Output is correct
33 Correct 544 ms 68436 KB Output is correct
34 Correct 798 ms 68436 KB Output is correct
35 Correct 813 ms 68416 KB Output is correct
36 Correct 671 ms 68440 KB Output is correct
37 Correct 1162 ms 68440 KB Output is correct
38 Correct 1190 ms 68452 KB Output is correct
39 Correct 1152 ms 68460 KB Output is correct
40 Correct 711 ms 68408 KB Output is correct
41 Execution timed out 5099 ms 86836 KB Time limit exceeded
42 Halted 0 ms 0 KB -