Submission #852213

#	Time	Username	Problem	Language	Result	Execution time	Memory
852213		8pete8	Gap (APIO16_gap)	C++17	30 / 100	34 ms	2360 KiB

gap

#include<iostream>
#include<stack>
#include<map>
#include<vector>
#include<string>
#include<unordered_map>
#include <queue>
#include<cstring>
#include<limits.h>
#include<cmath>
#include<set>
#include<algorithm>
#include<bitset>
#include "gap.h"
using namespace std;
#define ll long long
#define f first
#define endl "\n"
//#define s second
#define pii pair<int,int>
#define ppii pair<int,pii>
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define F(n) for(int i=0;i<n;i++)
#define lb lower_bound
#define fastio ios::sync_with_stdio(false);cin.tie(NULL);
using namespace std;
#define ll long long
const int mxn=1e5,mod=1000000007,lg=20,root=1000,inf=1e18;
ll v[mxn+10];
ll findGap(int T,int N){
    ll mn,mx;
    ll ans=1;
    ll lmn=1,lmx=1e18;
    if(T==1){
        ll j=0;
        for(ll i=0;i<(N+1)/2;i++){
            MinMax(lmn,lmx,&mn,&mx);
            if(mn==-1)break;
            v[j++]=mn;
            v[j++]=mx;
            lmn=mn+1;
            lmx=mx-1;
        }
        sort(v,v+N);       
        for(int i=1;i<N;i++)ans=max(ans,v[i]-v[i-1]);
        return ans;
    }
    MinMax(1,1e18,&mn,&mx);
    ans=ceil((((mx-mn)+(N-1))*1.0)/(N-1));//min max gap
    ll add=0,cur=mn;
    while(cur<mx){
        MinMax(cur+1,cur+ans,&mn,&mx);
        if(mn!=-1)ans=max(ans,mn-cur),cur=mx;
    }
    return ans;
}

Compilation message (stderr)

gap.cpp:30:54: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
   30 | const int mxn=1e5,mod=1000000007,lg=20,root=1000,inf=1e18;
      |                                                      ^~~~
gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:52:8: warning: unused variable 'add' [-Wunused-variable]
   52 |     ll add=0,cur=mn;
      |        ^~~

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