#include "books.h"
#pragma GCC optimize("O3")
#include <bits/stdc++.h>
#define jizz ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
#define pb push_back
#define ET cout << "\n"
#define ALL(v) v.begin(),v.end()
#define MP make_pair
#define F first
#define S second
#define MEM(i,j) memset(i,j,sizeof i)
#define DB(a,s,e) {for(int i=s;i<e;++i) cout << a[i] << " ";ET;}
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
int boss[1000005],mx[1000005],mi[1000005],bln[1000005];
int finds(int x)
{
if(boss[x]==x) return x;
return boss[x]=finds(boss[x]);
}
void Union(int a,int b)
{
a=finds(a),b=finds(b);
boss[a]=b,mx[b]=max(mx[b],mx[a]),mi[b]=min(mi[b],mi[a]);
}
long long minimum_walk(vector<int> p, int s)
{
ll ans=0,ls=-1,L=0,R=0;
for(int i=0;i<p.size();++i) boss[i]=i,mx[i]=i,mi[i]=i;
for(int i=0;i<p.size();++i)
Union(i,p[i]);
for(int i=0;i<p.size();++i)
ans+=abs(p[i]-i);
if(ans==0) return 0;
for(int i=0;i<p.size();)
if(finds(i),mx[boss[i]]==mi[boss[i]]) ++i;
else
{
if(~ls) ans+=(mi[boss[i]]-ls)*2;
for(ls=mx[finds(i)];i<=ls;bln[i]=ls,++i)
if(mx[finds(i)]>ls)
Union(ls,i),ls=mx[finds(i)];
}
finds(s);
if(mi[boss[s]]==mx[boss[s]])
{
for(int i=s;p[i]==i;++i)
++R;
if(R==p.size()-s) R=-1;
for(int i=s;p[i]==i;--i)
++L;
if(L==s+1) L=-1;
if(!~L) ans+=R*2;
else if(!~R) ans+=L*2;
}
else
{
for(int i=s;finds(i)!=finds(bln[i]);++i)
++R;
for(int i=s;finds(i)!=finds(bln[i]);--i)
++L;
ans+=min(L*2,R*2);
}
return ans;
}
Compilation message
books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:35:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0;i<p.size();++i) boss[i]=i,mx[i]=i,mi[i]=i;
~^~~~~~~~~
books.cpp:36:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0;i<p.size();++i)
~^~~~~~~~~
books.cpp:38:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0;i<p.size();++i)
~^~~~~~~~~
books.cpp:41:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0;i<p.size();)
~^~~~~~~~~
books.cpp:55:7: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(R==p.size()-s) R=-1;
~^~~~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
380 KB |
Output is correct |
| 3 |
Correct |
2 ms |
376 KB |
Output is correct |
| 4 |
Correct |
2 ms |
504 KB |
Output is correct |
| 5 |
Correct |
2 ms |
376 KB |
Output is correct |
| 6 |
Correct |
2 ms |
376 KB |
Output is correct |
| 7 |
Correct |
2 ms |
376 KB |
Output is correct |
| 8 |
Correct |
2 ms |
376 KB |
Output is correct |
| 9 |
Correct |
2 ms |
376 KB |
Output is correct |
| 10 |
Correct |
2 ms |
376 KB |
Output is correct |
| 11 |
Correct |
2 ms |
376 KB |
Output is correct |
| 12 |
Correct |
2 ms |
376 KB |
Output is correct |
| 13 |
Correct |
2 ms |
380 KB |
Output is correct |
| 14 |
Correct |
3 ms |
376 KB |
Output is correct |
| 15 |
Correct |
2 ms |
376 KB |
Output is correct |
| 16 |
Correct |
2 ms |
296 KB |
Output is correct |
| 17 |
Correct |
2 ms |
376 KB |
Output is correct |
| 18 |
Correct |
2 ms |
376 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
380 KB |
Output is correct |
| 3 |
Correct |
2 ms |
376 KB |
Output is correct |
| 4 |
Correct |
2 ms |
504 KB |
Output is correct |
| 5 |
Correct |
2 ms |
376 KB |
Output is correct |
| 6 |
Correct |
2 ms |
376 KB |
Output is correct |
| 7 |
Correct |
2 ms |
376 KB |
Output is correct |
| 8 |
Correct |
2 ms |
376 KB |
Output is correct |
| 9 |
Correct |
2 ms |
376 KB |
Output is correct |
| 10 |
Correct |
2 ms |
376 KB |
Output is correct |
| 11 |
Correct |
2 ms |
376 KB |
Output is correct |
| 12 |
Correct |
2 ms |
376 KB |
Output is correct |
| 13 |
Correct |
2 ms |
380 KB |
Output is correct |
| 14 |
Correct |
3 ms |
376 KB |
Output is correct |
| 15 |
Correct |
2 ms |
376 KB |
Output is correct |
| 16 |
Correct |
2 ms |
296 KB |
Output is correct |
| 17 |
Correct |
2 ms |
376 KB |
Output is correct |
| 18 |
Correct |
2 ms |
376 KB |
Output is correct |
| 19 |
Correct |
3 ms |
376 KB |
Output is correct |
| 20 |
Correct |
2 ms |
376 KB |
Output is correct |
| 21 |
Correct |
3 ms |
376 KB |
Output is correct |
| 22 |
Correct |
2 ms |
376 KB |
Output is correct |
| 23 |
Correct |
2 ms |
376 KB |
Output is correct |
| 24 |
Correct |
2 ms |
376 KB |
Output is correct |
| 25 |
Correct |
3 ms |
380 KB |
Output is correct |
| 26 |
Correct |
3 ms |
376 KB |
Output is correct |
| 27 |
Correct |
3 ms |
376 KB |
Output is correct |
| 28 |
Correct |
3 ms |
376 KB |
Output is correct |
| 29 |
Correct |
3 ms |
376 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
380 KB |
Output is correct |
| 3 |
Correct |
2 ms |
376 KB |
Output is correct |
| 4 |
Correct |
2 ms |
504 KB |
Output is correct |
| 5 |
Correct |
2 ms |
376 KB |
Output is correct |
| 6 |
Correct |
2 ms |
376 KB |
Output is correct |
| 7 |
Correct |
2 ms |
376 KB |
Output is correct |
| 8 |
Correct |
2 ms |
376 KB |
Output is correct |
| 9 |
Correct |
2 ms |
376 KB |
Output is correct |
| 10 |
Correct |
2 ms |
376 KB |
Output is correct |
| 11 |
Correct |
2 ms |
376 KB |
Output is correct |
| 12 |
Correct |
2 ms |
376 KB |
Output is correct |
| 13 |
Correct |
2 ms |
380 KB |
Output is correct |
| 14 |
Correct |
3 ms |
376 KB |
Output is correct |
| 15 |
Correct |
2 ms |
376 KB |
Output is correct |
| 16 |
Correct |
2 ms |
296 KB |
Output is correct |
| 17 |
Correct |
2 ms |
376 KB |
Output is correct |
| 18 |
Correct |
2 ms |
376 KB |
Output is correct |
| 19 |
Correct |
3 ms |
376 KB |
Output is correct |
| 20 |
Correct |
2 ms |
376 KB |
Output is correct |
| 21 |
Correct |
3 ms |
376 KB |
Output is correct |
| 22 |
Correct |
2 ms |
376 KB |
Output is correct |
| 23 |
Correct |
2 ms |
376 KB |
Output is correct |
| 24 |
Correct |
2 ms |
376 KB |
Output is correct |
| 25 |
Correct |
3 ms |
380 KB |
Output is correct |
| 26 |
Correct |
3 ms |
376 KB |
Output is correct |
| 27 |
Correct |
3 ms |
376 KB |
Output is correct |
| 28 |
Correct |
3 ms |
376 KB |
Output is correct |
| 29 |
Correct |
3 ms |
376 KB |
Output is correct |
| 30 |
Correct |
264 ms |
24292 KB |
Output is correct |
| 31 |
Correct |
277 ms |
24184 KB |
Output is correct |
| 32 |
Correct |
150 ms |
20344 KB |
Output is correct |
| 33 |
Correct |
164 ms |
24228 KB |
Output is correct |
| 34 |
Correct |
163 ms |
24184 KB |
Output is correct |
| 35 |
Correct |
167 ms |
24184 KB |
Output is correct |
| 36 |
Correct |
178 ms |
24160 KB |
Output is correct |
| 37 |
Correct |
195 ms |
24160 KB |
Output is correct |
| 38 |
Correct |
186 ms |
24132 KB |
Output is correct |
| 39 |
Correct |
189 ms |
24164 KB |
Output is correct |
| 40 |
Correct |
211 ms |
24160 KB |
Output is correct |
| 41 |
Correct |
249 ms |
24128 KB |
Output is correct |
| 42 |
Correct |
245 ms |
24184 KB |
Output is correct |
| 43 |
Correct |
165 ms |
24184 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
2 ms |
376 KB |
3rd lines differ - on the 1st token, expected: '3304', found: '3590' |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
380 KB |
Output is correct |
| 3 |
Correct |
2 ms |
376 KB |
Output is correct |
| 4 |
Correct |
2 ms |
504 KB |
Output is correct |
| 5 |
Correct |
2 ms |
376 KB |
Output is correct |
| 6 |
Correct |
2 ms |
376 KB |
Output is correct |
| 7 |
Correct |
2 ms |
376 KB |
Output is correct |
| 8 |
Correct |
2 ms |
376 KB |
Output is correct |
| 9 |
Correct |
2 ms |
376 KB |
Output is correct |
| 10 |
Correct |
2 ms |
376 KB |
Output is correct |
| 11 |
Correct |
2 ms |
376 KB |
Output is correct |
| 12 |
Correct |
2 ms |
376 KB |
Output is correct |
| 13 |
Correct |
2 ms |
380 KB |
Output is correct |
| 14 |
Correct |
3 ms |
376 KB |
Output is correct |
| 15 |
Correct |
2 ms |
376 KB |
Output is correct |
| 16 |
Correct |
2 ms |
296 KB |
Output is correct |
| 17 |
Correct |
2 ms |
376 KB |
Output is correct |
| 18 |
Correct |
2 ms |
376 KB |
Output is correct |
| 19 |
Correct |
3 ms |
376 KB |
Output is correct |
| 20 |
Correct |
2 ms |
376 KB |
Output is correct |
| 21 |
Correct |
3 ms |
376 KB |
Output is correct |
| 22 |
Correct |
2 ms |
376 KB |
Output is correct |
| 23 |
Correct |
2 ms |
376 KB |
Output is correct |
| 24 |
Correct |
2 ms |
376 KB |
Output is correct |
| 25 |
Correct |
3 ms |
380 KB |
Output is correct |
| 26 |
Correct |
3 ms |
376 KB |
Output is correct |
| 27 |
Correct |
3 ms |
376 KB |
Output is correct |
| 28 |
Correct |
3 ms |
376 KB |
Output is correct |
| 29 |
Correct |
3 ms |
376 KB |
Output is correct |
| 30 |
Correct |
264 ms |
24292 KB |
Output is correct |
| 31 |
Correct |
277 ms |
24184 KB |
Output is correct |
| 32 |
Correct |
150 ms |
20344 KB |
Output is correct |
| 33 |
Correct |
164 ms |
24228 KB |
Output is correct |
| 34 |
Correct |
163 ms |
24184 KB |
Output is correct |
| 35 |
Correct |
167 ms |
24184 KB |
Output is correct |
| 36 |
Correct |
178 ms |
24160 KB |
Output is correct |
| 37 |
Correct |
195 ms |
24160 KB |
Output is correct |
| 38 |
Correct |
186 ms |
24132 KB |
Output is correct |
| 39 |
Correct |
189 ms |
24164 KB |
Output is correct |
| 40 |
Correct |
211 ms |
24160 KB |
Output is correct |
| 41 |
Correct |
249 ms |
24128 KB |
Output is correct |
| 42 |
Correct |
245 ms |
24184 KB |
Output is correct |
| 43 |
Correct |
165 ms |
24184 KB |
Output is correct |
| 44 |
Incorrect |
2 ms |
376 KB |
3rd lines differ - on the 1st token, expected: '3304', found: '3590' |
| 45 |
Halted |
0 ms |
0 KB |
- |
