Submission #307977

#	Time	Username	Problem	Language	Result	Execution time	Memory
307977		AKaan37	Comparing Plants (IOI20_plants)	C++17	Compilation error	0 ms	0 KiB

plants

#include "plants.h"
//Bismillahirrahmanirrahim

#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx")

#include <bits/stdc++.h>

using namespace std;

typedef long long lo;
typedef pair< lo,lo > PII;

#define fi first
#define se second
#define mp make_pair
#define endl "\n"
#define pb push_back
#define fio() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define FOR for(int i=0;i<n;i++)
#define mid ((start+end)/2)
#define ort ((bas+son)/2)

const lo inf = 1000000000000000000;
const lo KOK = 100000;
const lo LOG = 30;
const lo li = 500005;
const lo mod = 1000000007;

int m,b[li],a[li],flag,t,siz[li],say,vis[li],dep[li],kk;
int cev;
string s;
vector<int> v[li],vv;

inline void dfs(int node,int der){
	if(vis[node])return;
	vis[node]=say;
	dep[node]=der;
	for(int i=0;i<(int)v[node].size();i++){
		int go=v[node][i];
		dfs(go,der+1);
	}
}

void init(int k, std::vector<int> r) {
	for(int i=0;i<(int)r.size();i++){
		if(r[i]==1){
			v[(i+1)%(int)r.size()].pb(i);
			siz[i]++;
		}
	}
	//~ queue<int>
	int n=(int)r.size();
	//~ FOR{
		//~ if(siz[i]==0){
			//~ say++;
			//~ dfs(i,0);
		//~ }
	//~ }
	vv=r;
	kk=k;
	for(int i=0;i<(int)vv.size();i++){
		int ind=-1,ind1=-1;
		for(int j=0;j<(int)vv.size();j++){
			if(vis[j])continue;
			if(vv[j]==0 && ind==-1)ind=j;
			else if(vv[j]==0 && ind1==-1)ind1=j;
		}
		if(ind1==-1){
			vis[ind]=i+1;
			for(int j=0;j<(int)vv.size();j++){
				if(((j+kk-1)>=ind && j<ind) || ((j+kk-1)%(int)vv.size()>=ind && j+kk-1>=(int)vv.size()))vv[j]--;
			}
			continue;
		}
		//~ if((ind+kk-1)>=ind1){
			vis[ind]=i+1;
			for(int j=0;j<(int)vv.size();j++){
				if(((j+kk-1)>=ind && j<ind) || ((j+kk-1)%(int)vv.size()>=ind && j+kk-1>=(int)vv.size()))vv[j]--;
			}
			continue;
		//~ }
		else{
			vis[ind1]=i+1;
			for(int j=0;j<(int)vv.size();j++){
				if(((j+kk-1)>=ind1 && j<ind1) || ((j+kk-1)%(int)vv.size()>=ind1 && j+kk-1>=(int)vv.size()))vv[j]--;
			}
		}
	}
}

int compare_plants(int x, int y) {
	if(vis[x]<vis[y])return 1;
	if(vis[x]>vis[y])return -1;
	if(vis[x]==vis[y]){
		//~ cout<<x<<" : : "<<y<<" : ;"<<vis[x]<<" : : "<<vis[y]<<endl;
		return 0;
	}
	if(vis[x]!=vis[y])return 0;
	if(dep[x]>dep[y])return -1;
	return 1;
}

Compilation message (stderr)

plants.cpp: In function 'void init(int, std::vector<int>)':
plants.cpp:83:3: error: 'else' without a previous 'if'
   83 |   else{
      |   ^~~~
plants.cpp:53:6: warning: unused variable 'n' [-Wunused-variable]
   53 |  int n=(int)r.size();
      |      ^