Submission #1015894

#	Time	Username	Problem	Language	Result	Execution time	Memory
1015894		HD1	Comparing Plants (IOI20_plants)	C++14	5 / 100	48 ms	8912 KiB

plants

#include "plants.h"
#include<bits/stdc++.h>
#define fastio ios_base::sync_with_stdio(0); cin.tie(0);
#define sz(x) ll(x.size())
#define all(x) x.begin(), x.end()
#define pb push_back
#define ff first
#define ss second
using namespace std;
typedef int ll;
typedef long double ld;
typedef pair<ll , ll > ii;
typedef pair<ii,ll> tri;
const ll mod=1e9+7;
const ll MAX=1e6;
ll A[MAX];
ll n;
void init(ll k, std::vector<ll> s) {
  A[1]=s[0];
  n=sz(s);
  for(int i=2; i<=2*n+1; i++){
    A[i]=A[i-1]+s[(i-1)%n];
  }
  return;
}
ll lock(ll l, ll r){
  return A[r]-A[l-1];
}
ll compare_plants(ll x, ll y) {   
  x++;
  y++;
  if(x<=y){
    ll a=lock(x,y-1);
    if(a==y-x){
      return -1;
    }
    if(a==0){
      return 1;
    }
    //cout<<"nel"<<'\n';
    x+=n;
    ll b=lock(y,x-1);
    if(b==x-y){
      return 1;
    }
    if(b==0){
      return -1;
    }
  }
  else{
    ll a=lock(y,x-1);
    //cout<<a<<'\n';
    if(a==x-y){
      return 1;
    }
    if(a==0){
      return -1;
    }
    //cout<<"nel"<<'\n';
    y+=n;
    ll b=lock(x,y-1);
    //cout<<b<<'\n';
    if(b==y-x){
      //cout<<"aja"<<'\n';
      return -1;
    }// queseso?
    if(b==0){
      return 1;
    }
  }
  return 0;
}
/*
int main(){
  vector<ll>c;
  ll a, q,b;
  cin>>n>>q;
  for(int i=0; i<n; i++) {
    cin>>a; 
    c.pb(a);
  }
  init(2, c);
  for(int i=0; i<n*2; i++){
    cout<<A[i]<<' ';
  }
  cout<<endl;
  while(q--){
    cin>>a>>b;
    cout<<compare_plants(a, b)<<'\n';
  }
}*/

• Subtask 1: 5 / 5
• Subtask 2: 0 / 14
• Subtask 3: 0 / 13
• Subtask 4: 0 / 17
• Subtask 5: 0 / 11
• Subtask 6: 0 / 15
• Subtask 7: 0 / 25