Submission #374445

#	Time	Username	Problem	Language	Result	Execution time	Memory
374445		Aryan_Raina	Gondola (IOI14_gondola)	C++14	25 / 100	39 ms	4736 KiB

gondola

#include "gondola.h"
#include <bits/stdc++.h>

using namespace std;

int valid(int n, int a[]) {
    int rr = -1;
    set<int> vis;
    for (int i = 0; i < n; i++) {
    	if (vis.count(a[i])) return 0;
    	vis.insert(a[i]);
        if (a[i] <= n) {
            if (rr == -1) rr = i;
            if ((n + a[i] - a[rr]) % n != (n + i - rr) % n) return 0;
        }
    }
    return 1;
}

//----------------------

int replacement(int n, int a[], int replacementSeq[]) {
	int rr = -1;
	for (int i = 0; i < n; i++) {
		if (a[i] <= n) {
			rr = i; break;
		}
	}
	vector<array<int,2>> rep;
	for (int i = 0; i < n; i++) {
		if (a[i] > n) {
			int x = (a[rr] + i - rr + n) % n;
			if (x == 0) x = n;
			rep.push_back({a[i], x});
		}
	}
	sort(rep.begin(), rep.end());
	int ind = 0, last = n+1;
	for (int i = 0; i < rep.size(); ++i) {
		for (; last <= rep[i][0]; ++last) replacementSeq[ind++] = rep[i][1];
	}
	return ind;
}

//----------------------

int countReplacement(int n, int inputSeq[]) {
  return -3;
}

Compilation message (stderr)

gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:39:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::array<int, 2> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |  for (int i = 0; i < rep.size(); ++i) {
      |                  ~~^~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 10 / 10
• Subtask 4: 5 / 5
• Subtask 5: 0 / 10
• Subtask 6: 0 / 20
• Subtask 7: 0 / 5
• Subtask 8: 0 / 15
• Subtask 9: 0 / 15
• Subtask 10: 0 / 10