Submission #1047104

#	Time	Username	Problem	Language	Result	Execution time	Memory
1047104		Ahmed57	Ancient Books (IOI17_books)	C++17	0 / 100	0 ms	348 KiB

books

#include "bits/stdc++.h"
using namespace std;
vector<int> P;
int vis[1001];
void dfs(int i){
    vis[i] = 1;
    if(!vis[P[i]])dfs(P[i]);
}
long long minimum_walk(vector<int> p, int s){
    int ans = 0;
    int n = p.size();
    P.clear();
    for(int i = 0;i<n;i++){
        vis[i] = 0;
        P.push_back(p[i]);
        ans+=abs(i-p[i]);
    }
    vector<int> lol;
    for(int i = 0;i<n;i++){
        if(!vis[i]){
            dfs(i);
            lol.push_back(i);
        }
    }
    int sz = lol.size();
    for(int i = 0;i<lol.size();i++){
        ans+=abs(lol[i]-lol[(i+1)%sz]);
    }
    return ans;
}

Compilation message (stderr)

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:26:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |     for(int i = 0;i<lol.size();i++){
      |                   ~^~~~~~~~~~~

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