Submission #983630

#	Time	Username	Problem	Language	Result	Execution time	Memory
983630		hocln	Rainforest Jumps (APIO21_jumps)	C++17	Compilation error	0 ms	0 KiB

jumps

#include <bits/stdc++.h>
#define ll long long
 
using namespace std;
 
const ll N=2e5+9,M=2e18+9,mod=1e9+7;
 
bool vis[N];
pair<ll,ll>p;
vector<ll>v[N];
ll a[N],n,x,y,z;
priority_queue<pair<ll,ll>>q;
 
void init(int m,vector<int>h)
{
    n=m;
    for(ll i=0;i<n;++i)a[i]=h[i];
    for(ll i=0;i<n;++i)
    {
        for(ll j=i-1;j>=0;--j)
        {
            if(a[j]>a[i])
            {
                v[i].push_back(j);
                break;
            }
        }
        for(ll j=i+1;j<n;++j)
        {
            if(a[j]>a[i])
            {
                v[i].push_back(j);
                break;
            }
        }
 
    }
}
 
int minimum_jumps(int A, int B, int C, int D)
{
    x=-1;
    for(ll i=A;i<=B;++i)
    {
        if(!vis[i])
        {
            q.push({0,i});
			vector<ll>d(n,inf);
			d[i] = 0;
            while(q.size())
            {
                p=q.top();
                q.pop();
                if(C<=p.second && p.second<=D)
                {
                  x=(x==-1?d[p.second]:min(x,d[p.second]));
                  continue;
                }
                for(auto j:v[p.first]) if(d[j] > d[p.second] + 1) d[j]=d[p.second] + 1,q.push({-d[j],j});
            }
        }
    }
    return x;
}

Compilation message (stderr)

jumps.cpp: In function 'int minimum_jumps(int, int, int, int)':
jumps.cpp:48:18: error: 'inf' was not declared in this scope; did you mean 'ynf'?
   48 |    vector<ll>d(n,inf);
      |                  ^~~
      |                  ynf