| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 1015882 | HD1 | Comparing Plants (IOI20_plants) | C++14 | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#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 long long 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) {
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;
}
return 0;
}
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){
return 1;
}
if(b==0){
return -1;
}
return 0;
}
return 0;
}