oj.uz

Submission #503522

# Submission time Handle Problem Language Result Execution time Memory
503522 2022-01-08T09:47:53 Z Koosha_mv Candies (JOI18_candies) C++14
100 / 100
 430 ms 22328 KB 
#include <bits/stdc++.h>
using namespace std;
#define dbgv(v) cout<<#v<<" = "; f(i,0,v.size()) cout<<v[i]<<" "; cout<<endl
#define dbga(a,x,y) cout<<#a<<" = "; f(i,x,y) cout<<a[i]<<" "; cout<<endl
#define erorp(x) cout<<#x<<"={"<<(x.F)<<" , "<<x.S<<"}"<<endl
#define eror(x) cout<<#x<<'='<<(x)<<endl
#define f_(i,a,b) for(int i=a;i>=b;i--)
#define f(i,a,b) for(int i=a;i<b;i++)
#define nb(x) __builtin_popcount(x)
#define all(v) v.begin(),v.end()
#define bit(n,k) (((n)>>(k))&1)
#define maxm(a,b) a=max(a,b)
#define minm(a,b) a=min(a,b)
#define lst(x) x[x.size()-1]
#define sz(x) int(x.size())
#define mp make_pair
#define ll long long
#define pb push_back
#define S second
#define F first
#define int ll

const int N=1e6+99,S=2,inf=1e16;

int n,t,ans,a[N],res[N],ps[N][S],L[N],R[N];
set<pair<int,pair<int,int> > > s;

void Add(int l,int r){
	if(r>n || l<1) return ;
	int res=(ps[r][1]-ps[l-1][0])-(ps[r][0]-ps[l-1][1]);
	s.insert({res,{l,r}});
}
void del(int l,int r){
	if(r>n || l<1) return ;
	int res=(ps[r][1]-ps[l-1][0])-(ps[r][0]-ps[l-1][1]);
	s.erase({res,{l,r}});
}

main(){
	cin>>n;
	
	f(i,2,n+2){
		cin>>a[i];
	}
	n+=2;
	a[1]=-inf;
	a[n]=-inf;
	
	f(i,1,n+1){
		L[i]=R[i]=i;
		s.insert({a[i],{L[i],R[i]}});
		ps[i][0]=ps[i-1][1];
		ps[i][1]=ps[i-1][0]+a[i];
	}
	
	f(t,0,(n+1)/2-1){
		pair<int,pair<int,int> > p=*s.rbegin();
		int copy,l=p.S.F-1,r=p.S.S+1;
		R[l+1]=0,L[r-1]=0;
		s.erase(p);
		ans+=p.F;
		
		copy=l;
		del(L[l],l);
		l=L[l];
		L[copy]=0,R[copy]=0;
		R[l]=r;
		
		
		copy=r;
		del(r,R[r]);
		r=R[r];
		L[copy]=0,R[copy]=0;
		L[r]=l;
	
		Add(l,r);
		R[l]=r;
		L[r]=l;	
		cout<<ans<<" ";
	}
}

Compilation message

candies.cpp:39:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   39 | main(){
      | ^~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 460 KB Output is correct
2 Correct 2 ms 460 KB Output is correct
3 Correct 3 ms 460 KB Output is correct
4 Correct 3 ms 460 KB Output is correct
5 Correct 2 ms 460 KB Output is correct
6 Correct 2 ms 460 KB Output is correct
7 Correct 2 ms 448 KB Output is correct
8 Correct 2 ms 460 KB Output is correct
9 Correct 2 ms 460 KB Output is correct
10 Correct 2 ms 460 KB Output is correct
11 Correct 2 ms 460 KB Output is correct
12 Correct 2 ms 460 KB Output is correct
13 Correct 2 ms 460 KB Output is correct
14 Correct 2 ms 460 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 2 ms 460 KB Output is correct
17 Correct 2 ms 460 KB Output is correct
18 Correct 2 ms 460 KB Output is correct
19 Correct 2 ms 460 KB Output is correct
20 Correct 2 ms 460 KB Output is correct

Subtask #2
92.0 / 92.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 460 KB Output is correct
2 Correct 2 ms 460 KB Output is correct
3 Correct 3 ms 460 KB Output is correct
4 Correct 3 ms 460 KB Output is correct
5 Correct 2 ms 460 KB Output is correct
6 Correct 2 ms 460 KB Output is correct
7 Correct 2 ms 448 KB Output is correct
8 Correct 2 ms 460 KB Output is correct
9 Correct 2 ms 460 KB Output is correct
10 Correct 2 ms 460 KB Output is correct
11 Correct 2 ms 460 KB Output is correct
12 Correct 2 ms 460 KB Output is correct
13 Correct 2 ms 460 KB Output is correct
14 Correct 2 ms 460 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 2 ms 460 KB Output is correct
17 Correct 2 ms 460 KB Output is correct
18 Correct 2 ms 460 KB Output is correct
19 Correct 2 ms 460 KB Output is correct
20 Correct 2 ms 460 KB Output is correct
21 Correct 378 ms 22328 KB Output is correct
22 Correct 322 ms 22064 KB Output is correct
23 Correct 430 ms 22208 KB Output is correct
24 Correct 188 ms 22084 KB Output is correct
25 Correct 185 ms 22100 KB Output is correct
26 Correct 178 ms 22100 KB Output is correct
27 Correct 195 ms 22084 KB Output is correct
28 Correct 227 ms 22096 KB Output is correct
29 Correct 198 ms 22072 KB Output is correct
30 Correct 221 ms 22084 KB Output is correct
31 Correct 208 ms 22136 KB Output is correct
32 Correct 211 ms 22096 KB Output is correct
33 Correct 278 ms 22040 KB Output is correct
34 Correct 258 ms 22120 KB Output is correct
35 Correct 263 ms 22072 KB Output is correct
36 Correct 347 ms 22120 KB Output is correct
37 Correct 347 ms 22076 KB Output is correct
38 Correct 329 ms 22048 KB Output is correct
39 Correct 181 ms 22156 KB Output is correct
40 Correct 175 ms 22148 KB Output is correct
41 Correct 184 ms 22036 KB Output is correct
42 Correct 211 ms 22096 KB Output is correct
43 Correct 196 ms 22140 KB Output is correct
44 Correct 196 ms 22084 KB Output is correct
45 Correct 218 ms 22072 KB Output is correct
46 Correct 244 ms 22096 KB Output is correct
47 Correct 204 ms 22108 KB Output is correct
48 Correct 273 ms 22148 KB Output is correct
49 Correct 256 ms 22056 KB Output is correct
50 Correct 263 ms 22164 KB Output is correct