Submission #1205031

#	Time	Username	Problem	Language	Result	Execution time	Memory
1205031		irmuun	Rotating Lines (APIO25_rotate)	C++20	Compilation error	0 ms	0 KiB

rotate

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

using namespace std;

#define ll long long
#define pb push_back
#define ff first
#define ss second
#define all(s) s.begin(),s.end()
#define rall(s) s.rbegin(),s.rend()

const int lim=50000;

int till(int x,int y){
	if(x<=y) return y-x;
	return lim-(x-y);
}

void energy(int n, vector<int> v){
	if(n==2){
		rotate({1},till(v[1],(v[0]+lim/2)%lim));
		return 0;
	}
	vector<int>ord(n);
	iota(all(ord),0);
	sort(all(ord),[&](int i,int j){
		return v[i]<v[j];
	});
	int r=n-1;
	for(int i=1;i<=n/2;i++){
		rotate({ord[r]},till(v[ord[r]],25000));
		r--;
	}
	int l=0;
	for(int i=1;i<=n/2;i++){
		rotate({ord[l]},till(v[ord[l]],0));
		l++;
	}
	if(n%2==1){
		rotate({ord[n/2]},till(v[ord[n/2]],12500));
	}
}

Compilation message (stderr)

rotate.cpp: In function 'void energy(int, std::vector<int>)':
rotate.cpp:23:24: error: return-statement with a value, in function returning 'void' [-fpermissive]
   23 |                 return 0;
      |                        ^