Submission #441706

#TimeUsernameProblemLanguageResultExecution timeMemory
441706julian33Gap (APIO16_gap)C++14
0 / 100
543 ms524292 KiB
#include <bits/stdc++.h>

using namespace std;

#ifdef LOCAL
#define deb(...) logger(#__VA_ARGS__, __VA_ARGS__)
template<typename ...Args>
void logger(string vars, Args&&... values) {
    cerr<<vars<<" = ";
    string delim="";
    (...,(cerr<<delim<<values,delim=", "));
    cerr<<"\n";
}
#else
#define deb(...) logger(#__VA_ARGS__, __VA_ARGS__)
template<typename ...Args>
void logger(string vars, Args&&... values) {}
#endif

#define FOR(i,j,n) for(int i=j;i<n;i++)

#define pb push_back
#define sz(x) (int)(x.size())
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
template<typename T> inline void maxa(T& a,T b){a=max(a,b);}
template<typename T> inline void mina(T& a,T b){a=min(a,b);}

vector<ll> A;

void MinMax(ll s,ll t,ll &mn, ll &mx){
    // if(mn>A.back())
    //     mn=-1;
    // else
    //     mn=*lower_bound(A.begin(),A.end(),s);
    // if(mx<A[0])
    //     mx=-1;
    // else
    //     mx=*--lower_bound(A.begin(),A.end(),t+1);
}

ll findGap(int t, int n){
    assert(t==1);
    ll mn=0; ll mx=1e18;
    vector<ll> ans;
    while(mn<=mx){
        ll premn=mn;
        ll premx=mx;
        MinMax(mn,mx,mn,mx);
        if(mn!=-1)
            ans.pb(mn); 
        if(mx!=-1 && mx!=mn)
            ans.pb(mx);
        mx=~mx?mx-1:premx;
        mn=~mn?mn+1:premn;
        assert(mn>0 && mx>0);
    }
    sort(ans.begin(),ans.end());
    ll best=0;
    for(int i=1;i<n;i++){
        maxa(best,ans[i]-ans[i-1]);
    }  
    return best;
}
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