Submission #630271

#	Time	Username	Problem	Language	Result	Execution time	Memory
630271		codr0	Library (JOI18_library)	C++14	Compilation error	0 ms	0 KiB

library

// Code by Parsa Eslami

#include <bits/stdc++.h>
#include "library.h"
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>

#define FOR(i,a,b) for(int i=a;i<=b;i++)
#define FORR(i,a,b) for(int i=a;i>=b;i--)
#define maxm(a,b) a=max(a,b)
#define minm(a,b) a=min(a,b)
#define bit(i,j) ((j>>i)&1)
#define pb push_back
#define all(x) x.begin(),x.end()
#define SZ(x) (int)x.size()
#define err(x) cerr<<#x<<" : "<<x<<'\n'
#define dmid int mid=(r+l)/2
#define lc 2*id
#define rc 2*id+1

using namespace std;

	int query(vector<int> x){
		int t=0;
		FOR(i,0,SZ(x)-1) t+=x[i];
		return (t-Query(x));
	}

	void Solve(int n){
		vector<int> ans;
		if(n==1){
			ans.pb(1);
			return ans;
		}
		FOR(j,0,n-1){
			vector<int> m(n);
			FOR(w,0,n-1) m[w]=(w!=j);
			if(query(m)==n-2){
				ans.pb(j+1);
				break;
			}
		}
		vector<int> vc2;
		FOR(i,0,n-1) if(i!=(ans.back()-1)) vc2.pb(i);
		while(!vc2.empty()){
			vector<int> vc=vc2;
			while(SZ(vc)!=1){
				int mid=SZ(vc)/2;
				vector<int> m(n);
				FOR(w,0,n-1) m[w]=0;
				FOR(j,0,mid-1) m[vc[j]]=1;
				int a1=query(m);
				m[ans.back()-1]=1;
				int a2=query(m);
				if(a2-a1==1){
					vector<int> vc0;
					FOR(j,0,mid-1) vc0.pb(vc[j]);
					vc=vc0;
				}else{
					vector<int> vc0;
					FOR(j,mid,SZ(vc)-1) vc0.pb(vc[j]);
					vc=vc0;
				}
			}
			ans.pb(vc.back()+1);
			vector<int> vc0;
			FOR(i,0,SZ(vc2)-1) if(vc2[i]!=vc.back()) vc0.pb(vc2[i]);
			vc2=vc0;
		}
		Answer(ans);
	}

Compilation message (stderr)

library.cpp: In function 'void Solve(int)':
library.cpp:34:11: error: return-statement with a value, in function returning 'void' [-fpermissive]
   34 |    return ans;
      |           ^~~