Submission #1075991

#	Time	Username	Problem	Language	Result	Execution time	Memory
1075991		amin	Ancient Books (IOI17_books)	C++14	0 / 100	1 ms	348 KiB

books

#include "books.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
long long minimum_walk(vector<int> p, int s) {
	ll ans=0;
	ll n=p.size();

	int o[n+1];
	for(int i=0;i<=n;i++)
    {
        o[i]=0;
    }
    int pre=0;
   ll mi=1000000;
   ll ma=0;
	for(ll i=0;i<n;i++)
    {
           if(p[i]!=i&&o[i]==0)
           {
               mi=min(mi,i);
               ma=i;
               int x=p[i];
               o[i]=1;
               while(x!=i)
               {

                   o[x]=1;
                   x=p[x];
               }
           }


            ans+=abs(p[i]-i);
    }
if(mi==1000000)
    mi=0;
    return ans+ma+mi;
}

Compilation message (stderr)

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:36:1: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   36 | if(mi==1000000)
      | ^~
books.cpp:38:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   38 |     return ans+ma+mi;
      |     ^~~~~~
books.cpp:14:9: warning: unused variable 'pre' [-Wunused-variable]
   14 |     int pre=0;
      |         ^~~

• Subtask 1: 0 / 12
• Subtask 2: 0 / 10
• Subtask 3: 0 / 28
• Subtask 4: 0 / 20
• Subtask 5: 0 / 30