Submission #403664

#	Time	Username	Problem	Language	Result	Execution time	Memory
403664		teehandsome	Gap (APIO16_gap)	C++11	30 / 100	71 ms	1908 KiB

gap

#include "gap.h"
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define endl '\n'
#define INF 1e9+7
#define all(x) x.begin(),x.end()
using namespace std;
using namespace __gnu_pbds;
using ll=long long;
using pii=pair<int,int>;
using ppi=pair<int,pii>;
using oset=tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update>;

template<typename T>
void _print(vector<T> x) {cerr<<"{"; for(auto e:x) cerr<<e<<","; cerr<<"}";}
void _print(pii x) {cerr<<"{"<<x.first<<","<<x.second<<"}";}
template<typename T>
void _print(T x) {cerr<<x;}

void dbg() {cerr<<endl;}
template<typename Head,typename... Tail>
void dbg(Head H,Tail... T) {
    _print(H);
    if(sizeof...(T)) cerr<<",";
    else cerr<<"\"]";
    dbg(T...);
}
#define debug(...) cerr<<"["<<#__VA_ARGS__<<"]:[\"",dbg(__VA_ARGS__)

//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

int n,t;

long long findGap(int T, int N)
{
    n=N,t=T;
    if(T==1) {
        vector<ll> a(n);
        ll l=0,r=1e18;
        int li=0,ri=n-1;
        for(int i=0;i<(n+1)/2;i++) {
            if(li>ri) break;
            ll mn,mx;
            MinMax(l,r,&mn,&mx);
            a[li++]=mn;
            a[ri--]=mx;
            l=mn+1;
            r=mx-1;
        }
        ll ans=0;
        for(int i=1;i<n;i++) {
            ans=max(ans,a[i]-a[i-1]);
        }
        return ans;
    }
    //T=2

    ll mn,mx;
    ll templ=0,tempr=1e18;
    MinMax(templ,tempr,&mn,&mx);
    ll block=(mx-mn+1+n)/(n+1);
    ll ans=block;
    ll past=mn;
    ll a,b;
    for(ll i=mn+block;i<=mx-1;) {
        MinMax(i,i+block,&a,&b);
//        debug(i,i+block,a,b);
        ans=max(ans,a-past);
        if(b!=-1) past=b;
        i=i+block+1;

    }
    return ans;
}

• Subtask 1: 30 / 30
• Subtask 2: 0 / 70