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Submission #920953

# Submission time Handle Problem Language Result Execution time Memory
920953 2024-02-03T08:21:27 Z siewjh Ancient Books (IOI17_books) C++17
0 / 100
 0 ms 348 KB 
#include "books.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

ll minimum_walk(vector<int> p, int s) {
	int nums = p.size();
	vector<int> cyc(nums, -1);
	ll ans = 0;
	int mn = s, mx = s;
	for (int i = 0; i < nums; i++)
		if (cyc[i] == -1){
			int curr = i; bool sg = (p[i] == i);
			do{
				ans += abs(curr - p[curr]);
				cyc[curr] = i;
				if (!sg){
					mn = min(mn, curr);
					mx = max(mn, curr);
				}
				curr = p[curr];
			} while (curr != i);
		}
	ll cnt = 0;
	vector<bool> vis(nums, 0);
	for (int i = 0; i < nums; i++)
		if (!vis[cyc[i]]){
			vis[cyc[i]] = 1;
			if (i >= mn && i <= mx) cnt++;
		}
	return ans + (cnt - 1) * 2;
}

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 0 ms 348 KB 3rd lines differ - on the 1st token, expected: '3304', found: '4182'
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 -