oj.uz

Submission #797495

# Submission time Handle Problem Language Result Execution time Memory
797495 2023-07-29T13:02:40 Z firewater Ancient Books (IOI17_books) C++14
22 / 100
 286 ms 239068 KB 
#include "books.h"
#include <cstdio>
#include <vector>
#include<queue>
#include <cassert>
#include<cstring>
#include<iostream>
#include<algorithm>
#define ll long long
#define N 1001000
#define mp make_pair
#define fs first
#define sn second
using namespace std;

ll n,m,w,x,y,s,ans,tot,h[N],b[N],p[N],to[N],mx[N],mi[N],fa[N],fr[N];
priority_queue<pair<ll,ll> >d;
struct rec
{
	int to,nx,l;
}e[N<<3];
void dfs(ll x)
{
	if(fr[x])return;

	fr[x]=w;
	mx[w]=max(mx[w],x);
	mi[w]=min(mi[w],x);
	ans+=abs(x-to[x]);
	dfs(to[x]);
	return;
}
void addl(ll x,ll y,ll z)
{
	e[++tot].to=y;
	e[tot].nx=h[x];
	e[tot].l=z;
	h[x]=tot;
	return;
}
void dij()
{
	memset(p,0,sizeof(p));
	memset(b,127/3,sizeof(b));
	b[w]=0;
	d.push(mp(0,w));
	while(!d.empty()){
		ll x=d.top().sn;
		d.pop();
		if(p[x])continue;
		p[x]=1;
		ans+=b[x];

		for(ll i=h[x];i;i=e[i].nx){
			ll y=e[i].to;
			if(p[y]||e[i].l>b[y])continue;
			b[y]=e[i].l;
			d.push(mp(-b[y],y));
		}
	}
	return;
}
long long minimum_walk(std::vector<int> too, int ss) {
	n=too.size();
	for(ll i=1;i<=n;++i)
		to[i]=too[i-1]+1;
	s=ss+1;

	w=m=0;
	for(ll i=1;i<=n;++i)
		if(!fr[i]&&to[i]!=i){
			++w;
			mi[w]=1001000;
			mx[w]=0;
			dfs(i);
		}
	for(ll i=1;i<=n;++i)
		for(ll j=i+1;j<=n;++j)
			if(fr[i]!=fr[j]&&fr[i]&&fr[j]){
				addl(fr[i],fr[j],abs(j-i)*2);
				addl(fr[j],fr[i],abs(j-i)*2);
			}
				// l[++m]=mp((j-i)*2,mp(fr[i],fr[j]));
	for(ll i=1;i<=n;++i)
		for(ll j=1;j<=w;++j)
			if(fr[i]&&fr[i]!=j&&mi[j]<=i&&i<=mx[j]){
				addl(j,fr[i],0);
			}
				// l[++m]=mp(0,mp(fr[i],j));
	w++;
	for(ll i=1;i<=n;++i)
		if(fr[i]){
			addl(w,fr[i],abs(s-i)*2);
		}
			// l[++m]=mp(abs(s-i)*2,mp(w,fr[i]));
	dij();
	// printf("%d\n",ans);
	// for(ll i=1;i<=m;++i){
	// 	x=l[i].sn.fs;
	// 	y=l[i].sn.sn;
	// 	x=find(x);
	// 	y=find(y);
	// 	if(x==y)continue;
	// 	ans+=l[i].fs;
	// 	fa[x]=y;
	// }
	return ans;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 15976 KB Output is correct
2 Correct 5 ms 15956 KB Output is correct
3 Correct 6 ms 15956 KB Output is correct
4 Correct 5 ms 15936 KB Output is correct
5 Correct 5 ms 15960 KB Output is correct
6 Correct 5 ms 15956 KB Output is correct
7 Correct 6 ms 15956 KB Output is correct
8 Correct 5 ms 15956 KB Output is correct
9 Correct 6 ms 15936 KB Output is correct
10 Correct 5 ms 15956 KB Output is correct
11 Correct 5 ms 15956 KB Output is correct
12 Correct 5 ms 15956 KB Output is correct
13 Correct 5 ms 15956 KB Output is correct
14 Correct 5 ms 15936 KB Output is correct
15 Correct 5 ms 15956 KB Output is correct
16 Correct 5 ms 15956 KB Output is correct
17 Correct 5 ms 15956 KB Output is correct
18 Correct 5 ms 15956 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 15976 KB Output is correct
2 Correct 5 ms 15956 KB Output is correct
3 Correct 6 ms 15956 KB Output is correct
4 Correct 5 ms 15936 KB Output is correct
5 Correct 5 ms 15960 KB Output is correct
6 Correct 5 ms 15956 KB Output is correct
7 Correct 6 ms 15956 KB Output is correct
8 Correct 5 ms 15956 KB Output is correct
9 Correct 6 ms 15936 KB Output is correct
10 Correct 5 ms 15956 KB Output is correct
11 Correct 5 ms 15956 KB Output is correct
12 Correct 5 ms 15956 KB Output is correct
13 Correct 5 ms 15956 KB Output is correct
14 Correct 5 ms 15936 KB Output is correct
15 Correct 5 ms 15956 KB Output is correct
16 Correct 5 ms 15956 KB Output is correct
17 Correct 5 ms 15956 KB Output is correct
18 Correct 5 ms 15956 KB Output is correct
19 Correct 13 ms 24700 KB Output is correct
20 Correct 13 ms 23156 KB Output is correct
21 Correct 6 ms 15924 KB Output is correct
22 Correct 14 ms 19788 KB Output is correct
23 Correct 15 ms 20372 KB Output is correct
24 Correct 18 ms 22824 KB Output is correct
25 Correct 20 ms 23756 KB Output is correct
26 Correct 18 ms 27536 KB Output is correct
27 Correct 17 ms 27132 KB Output is correct
28 Correct 16 ms 27092 KB Output is correct
29 Correct 13 ms 19316 KB Output is correct

Subtask #3
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 15976 KB Output is correct
2 Correct 5 ms 15956 KB Output is correct
3 Correct 6 ms 15956 KB Output is correct
4 Correct 5 ms 15936 KB Output is correct
5 Correct 5 ms 15960 KB Output is correct
6 Correct 5 ms 15956 KB Output is correct
7 Correct 6 ms 15956 KB Output is correct
8 Correct 5 ms 15956 KB Output is correct
9 Correct 6 ms 15936 KB Output is correct
10 Correct 5 ms 15956 KB Output is correct
11 Correct 5 ms 15956 KB Output is correct
12 Correct 5 ms 15956 KB Output is correct
13 Correct 5 ms 15956 KB Output is correct
14 Correct 5 ms 15936 KB Output is correct
15 Correct 5 ms 15956 KB Output is correct
16 Correct 5 ms 15956 KB Output is correct
17 Correct 5 ms 15956 KB Output is correct
18 Correct 5 ms 15956 KB Output is correct
19 Correct 13 ms 24700 KB Output is correct
20 Correct 13 ms 23156 KB Output is correct
21 Correct 6 ms 15924 KB Output is correct
22 Correct 14 ms 19788 KB Output is correct
23 Correct 15 ms 20372 KB Output is correct
24 Correct 18 ms 22824 KB Output is correct
25 Correct 20 ms 23756 KB Output is correct
26 Correct 18 ms 27536 KB Output is correct
27 Correct 17 ms 27132 KB Output is correct
28 Correct 16 ms 27092 KB Output is correct
29 Correct 13 ms 19316 KB Output is correct
30 Runtime error 286 ms 239068 KB Execution killed with signal 11
31 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 17 ms 18876 KB 3rd lines differ - on the 1st token, expected: '3304', found: '3324'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 15976 KB Output is correct
2 Correct 5 ms 15956 KB Output is correct
3 Correct 6 ms 15956 KB Output is correct
4 Correct 5 ms 15936 KB Output is correct
5 Correct 5 ms 15960 KB Output is correct
6 Correct 5 ms 15956 KB Output is correct
7 Correct 6 ms 15956 KB Output is correct
8 Correct 5 ms 15956 KB Output is correct
9 Correct 6 ms 15936 KB Output is correct
10 Correct 5 ms 15956 KB Output is correct
11 Correct 5 ms 15956 KB Output is correct
12 Correct 5 ms 15956 KB Output is correct
13 Correct 5 ms 15956 KB Output is correct
14 Correct 5 ms 15936 KB Output is correct
15 Correct 5 ms 15956 KB Output is correct
16 Correct 5 ms 15956 KB Output is correct
17 Correct 5 ms 15956 KB Output is correct
18 Correct 5 ms 15956 KB Output is correct
19 Correct 13 ms 24700 KB Output is correct
20 Correct 13 ms 23156 KB Output is correct
21 Correct 6 ms 15924 KB Output is correct
22 Correct 14 ms 19788 KB Output is correct
23 Correct 15 ms 20372 KB Output is correct
24 Correct 18 ms 22824 KB Output is correct
25 Correct 20 ms 23756 KB Output is correct
26 Correct 18 ms 27536 KB Output is correct
27 Correct 17 ms 27132 KB Output is correct
28 Correct 16 ms 27092 KB Output is correct
29 Correct 13 ms 19316 KB Output is correct
30 Runtime error 286 ms 239068 KB Execution killed with signal 11
31 Halted 0 ms 0 KB -