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Submission #992398

# Submission time Handle Problem Language Result Execution time Memory
992398 2024-06-04T11:47:02 Z bachhoangxuan Ancient Books (IOI17_books) C++17
0 / 100
 1 ms 348 KB 
#include "books.h"
#include<bits/stdc++.h>
using namespace std;
const int maxn=1e6+5;
int f[maxn],cnt,d[maxn],num;

long long minimum_walk(std::vector<int> p, int s) {
    long long ans=0;
    int n=(int)p.size();
    for(int i=0;i<n;i++){
        if(!f[i]){
            int u=i;cnt++;
            while(!f[u]) f[u]=cnt,u=p[u];
        }
        ans+=abs(i-p[i]);
    }
    int mn=n,r=0;
    for(int i=0;i<n;i++){
        r=max(r,i);
        while(r<n && num<cnt){
            num-=!!d[f[r]];
            d[f[r]]++;
            num+=!!d[f[r]];
            r++;
        }
        if(num==cnt) mn=min(mn,max(r-1,s)-min(i,s));
        num-=!!d[f[i]];
        d[f[i]]--;
        num+=!!d[f[i]];
    }
    return ans+2*mn;
}

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Incorrect 0 ms 348 KB 3rd lines differ - on the 1st token, expected: '6', found: '8'
3 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Incorrect 0 ms 348 KB 3rd lines differ - on the 1st token, expected: '6', found: '8'
3 Halted 0 ms 0 KB -

Subtask #3
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Incorrect 0 ms 348 KB 3rd lines differ - on the 1st token, expected: '6', found: '8'
3 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB 3rd lines differ - on the 1st token, expected: '3304', found: '4734'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Incorrect 0 ms 348 KB 3rd lines differ - on the 1st token, expected: '6', found: '8'
3 Halted 0 ms 0 KB -