oj.uz

Submission #1103482

# Submission time Handle Problem Language Result Execution time Memory
1103482 2024-10-21T04:04:13 Z ezzzay Nile (IOI24_nile) C++17
82 / 100
 76 ms 15360 KB 
#include<bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define pb push_back
#define ll long long
const int N=3e5+5;
int par[N];
int sbtr[N];
int H;
void init(int n){
	H=2*n;
	for(int i=0;i<n;i++){
		par[i]=i;
		sbtr[i]=1;
	}
}
int find(int x){
	if(par[x]==x)return x;
	return par[x]=find(par[x]);
}
void unite(int x, int y){
	int px=find(x),py=find(y);
	if(px==py)return;
	if(sbtr[py]>sbtr[px])swap(px,py);
	int a=sbtr[px],b=sbtr[py];
	sbtr[px]+=sbtr[py];
	par[py]=px;
	if(a%2 and b%2 )H-=2;
}
std::vector<long long> calculate_costs(std::vector<int> W, std::vector<int> A,
                                       std::vector<int> B, std::vector<int> E) {   
								                  
	init(int(W.size()));                 	
    int q = (int)E.size();
    int n = W.size();
    if(q<=5){
    	  vector<ll>ans;
    vector<pair<ll,ll> >v;
    for(int i=0;i<n;i++){
    	v.pb({W[i],i});
	}
	sort(v.begin(),v.end());
	
	for(int f=0;f<q;f++){
		ll d=E[f];
		vector<vector<ll> > dp ( n+5 , vector<ll> (2)); 
		for(int i=1;i<=n;i++){
			dp[i][0]=1e17;
			dp[i][1]=1e17;
		}
		for(int i=0;i<n;i++){
			int a,b,c;
			a=v[i].ss;
			if(i>0)b=v[i-1].ss;
			if(i>1)c=v[i-2].ss;
			if(i>0) {
				if(abs(W[a]-W[b])<=d) dp[i+1][1]=min(dp[i+1][1],dp[i][0]-A[b]+B[b]+B[a]);
			}
			if(i>1) {
				if(abs(W[a]-W[c])<=d) dp[i+1][1]=min(dp[i+1][1],dp[i-1][0]-A[c]+B[c]+B[a]+A[b]);
			}
			dp[i+1][0]=min(dp[i+1][0],min(dp[i][1],dp[i][0])+A[a]);
		}
		ans.pb(min(dp[n][0],dp[n][1]));
	}
	return ans;
	}
    vector<ll>ans(q);
    vector<pair<ll,ll> >v;
    vector<pair<ll, pair<int,int> > >vc;
    for(int i=0;i<n;i++){
    	v.pb({W[i],i});
	}
	sort(v.begin(),v.end());
	for(int i=1;i<n;i++){
		int x=abs(v[i].ff-v[i-1].ff);
		int a=v[i-1].ss,b=v[i].ss;
		vc.pb({x,{a,b}});
	}
	sort(vc.begin(),vc.end());
	int idx=0;
	vector<pair<int,int>>vec;
	for(int i=0;i<q;i++){
		vec.pb({E[i],i});
	}
	sort(vec.begin(),vec.end());
	
	for(int f=0;f<q;f++){
		ll d=vec[f].ff;
		int k=vec[f].ss;
		while(vc[idx].ff<=d and idx<vc.size()){
			int a=vc[idx].ss.ff,b=vc[idx].ss.ss;
			unite(a,b);
			idx++;
		}
		ans[k]=H;
	}
	return ans;
}

Compilation message

nile.cpp: In function 'std::vector<long long int> calculate_costs(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
nile.cpp:92:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   92 |   while(vc[idx].ff<=d and idx<vc.size()){
      |                           ~~~^~~~~~~~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2640 KB Output is correct
2 Correct 2 ms 2640 KB Output is correct
3 Correct 2 ms 2640 KB Output is correct
4 Correct 2 ms 2640 KB Output is correct
5 Correct 2 ms 2684 KB Output is correct
6 Correct 2 ms 2640 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 12548 KB Output is correct
2 Correct 49 ms 15052 KB Output is correct
3 Correct 58 ms 15040 KB Output is correct
4 Correct 48 ms 14780 KB Output is correct
5 Correct 51 ms 15052 KB Output is correct
6 Correct 62 ms 15032 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 12480 KB Output is correct
2 Correct 58 ms 12544 KB Output is correct
3 Correct 56 ms 12528 KB Output is correct
4 Correct 56 ms 12540 KB Output is correct
5 Correct 56 ms 12548 KB Output is correct
6 Correct 53 ms 12524 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2640 KB Output is correct
2 Correct 2 ms 2640 KB Output is correct
3 Correct 2 ms 2640 KB Output is correct
4 Correct 2 ms 2640 KB Output is correct
5 Correct 2 ms 2684 KB Output is correct
6 Correct 2 ms 2640 KB Output is correct
7 Correct 2 ms 2804 KB Output is correct
8 Correct 3 ms 2504 KB Output is correct
9 Correct 2 ms 2640 KB Output is correct
10 Correct 2 ms 2576 KB Output is correct
11 Correct 2 ms 2640 KB Output is correct
12 Correct 2 ms 2640 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2640 KB Output is correct
2 Correct 2 ms 2640 KB Output is correct
3 Correct 2 ms 2640 KB Output is correct
4 Correct 2 ms 2640 KB Output is correct
5 Correct 2 ms 2684 KB Output is correct
6 Correct 2 ms 2640 KB Output is correct
7 Correct 48 ms 12548 KB Output is correct
8 Correct 49 ms 15052 KB Output is correct
9 Correct 58 ms 15040 KB Output is correct
10 Correct 48 ms 14780 KB Output is correct
11 Correct 51 ms 15052 KB Output is correct
12 Correct 62 ms 15032 KB Output is correct
13 Correct 55 ms 12480 KB Output is correct
14 Correct 58 ms 12544 KB Output is correct
15 Correct 56 ms 12528 KB Output is correct
16 Correct 56 ms 12540 KB Output is correct
17 Correct 56 ms 12548 KB Output is correct
18 Correct 53 ms 12524 KB Output is correct
19 Correct 2 ms 2804 KB Output is correct
20 Correct 3 ms 2504 KB Output is correct
21 Correct 2 ms 2640 KB Output is correct
22 Correct 2 ms 2576 KB Output is correct
23 Correct 2 ms 2640 KB Output is correct
24 Correct 2 ms 2640 KB Output is correct
25 Correct 62 ms 15100 KB Output is correct
26 Correct 59 ms 15360 KB Output is correct
27 Correct 63 ms 15352 KB Output is correct
28 Correct 62 ms 12676 KB Output is correct
29 Correct 76 ms 15184 KB Output is correct
30 Correct 69 ms 15104 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 12480 KB Output is correct
2 Correct 58 ms 12544 KB Output is correct
3 Correct 56 ms 12528 KB Output is correct
4 Correct 56 ms 12540 KB Output is correct
5 Correct 56 ms 12548 KB Output is correct
6 Correct 53 ms 12524 KB Output is correct
7 Correct 54 ms 12728 KB Output is correct
8 Correct 60 ms 12760 KB Output is correct
9 Correct 66 ms 12728 KB Output is correct
10 Correct 58 ms 12736 KB Output is correct
11 Correct 69 ms 12728 KB Output is correct
12 Correct 63 ms 12736 KB Output is correct
13 Correct 72 ms 12728 KB Output is correct
14 Correct 60 ms 12736 KB Output is correct
15 Correct 62 ms 12736 KB Output is correct

Subtask #7
0.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 2 ms 2640 KB Output is correct
3 Correct 2 ms 2640 KB Output is correct
4 Correct 2 ms 2640 KB Output is correct
5 Correct 2 ms 2640 KB Output is correct
6 Correct 2 ms 2684 KB Output is correct
7 Correct 2 ms 2640 KB Output is correct
8 Correct 48 ms 12548 KB Output is correct
9 Correct 49 ms 15052 KB Output is correct
10 Correct 58 ms 15040 KB Output is correct
11 Correct 48 ms 14780 KB Output is correct
12 Correct 51 ms 15052 KB Output is correct
13 Correct 62 ms 15032 KB Output is correct
14 Correct 55 ms 12480 KB Output is correct
15 Correct 58 ms 12544 KB Output is correct
16 Correct 56 ms 12528 KB Output is correct
17 Correct 56 ms 12540 KB Output is correct
18 Correct 56 ms 12548 KB Output is correct
19 Correct 53 ms 12524 KB Output is correct
20 Correct 2 ms 2804 KB Output is correct
21 Correct 3 ms 2504 KB Output is correct
22 Correct 2 ms 2640 KB Output is correct
23 Correct 2 ms 2576 KB Output is correct
24 Correct 2 ms 2640 KB Output is correct
25 Correct 2 ms 2640 KB Output is correct
26 Correct 62 ms 15100 KB Output is correct
27 Correct 59 ms 15360 KB Output is correct
28 Correct 63 ms 15352 KB Output is correct
29 Correct 62 ms 12676 KB Output is correct
30 Correct 76 ms 15184 KB Output is correct
31 Correct 69 ms 15104 KB Output is correct
32 Correct 54 ms 12728 KB Output is correct
33 Correct 60 ms 12760 KB Output is correct
34 Correct 66 ms 12728 KB Output is correct
35 Correct 58 ms 12736 KB Output is correct
36 Correct 69 ms 12728 KB Output is correct
37 Correct 63 ms 12736 KB Output is correct
38 Correct 72 ms 12728 KB Output is correct
39 Correct 60 ms 12736 KB Output is correct
40 Correct 62 ms 12736 KB Output is correct
41 Incorrect 64 ms 12728 KB Output isn't correct
42 Halted 0 ms 0 KB -