Submission #23532

#	Time	Username	Problem	Language	Result	Execution time	Memory
23532		repeating	Gap (APIO16_gap)	C++11	30 / 100	2000 ms	9120 KiB

gap

#include <bits/stdc++.h>
#define F first
#define S second
#define P push
#define pb push_back
#define MEM(dp,i) memset(dp,i,sizeof(dp))
#define W while
#define R return
#define C continue
#define SI size()
#define ll long long
#define pll pair<ll,ll>
#define SF(x) scanf("%I64d",&x)

using namespace std;
const long long INF = 2e9;
long long MOD = 1e9+7;
void MinMax(ll ,ll ,ll *,ll *);
long long findGap(int ,int );
ll a[300006];
vector<pll> v[3];
vector<ll> arr;
long long findGap(int t,int n){
    if(t==1){
        ll l=0,r=1e18;
        ll res=0;
        ll i=0,j=n-1;
        W(i<=j){
            MinMax(l,r,&l,&r);
            a[i]=l;
            a[j]=r;
            r--,l++;
            i++,j--;
        }
        for(int i=1;i<n;i++)res=max(res,a[i]-a[i-1]);
        R res;
    }
    else{
        v[0].pb({0,1e18});
        ll cur=0;
        W(!v[cur].empty()){
            ll sum=0;
            for(int i=0;i<v[cur].SI;i++){
                sum+=v[cur][i].S-v[cur][i].F+1;
            }
            ll len=sum/10000000;
            ll i;
            ll mx,mn;
            W(!v[cur].empty()){
                i=v[cur].SI-1;
                for(ll j=v[cur][i].F;i<=v[cur][i].S;j+=len){
                    MinMax(j,min(j+len-1,v[cur][i].S),&mn,&mx);
                    if(mn==-1)C;
                    arr.pb(mn);
                    if(mx!=mn)arr.pb(mx);
                    if(mn!=mx)v[cur^1].pb({mn+1,mx-1});
                }
            }
            cur^=1;
        }
        ll res=0;
        sort(arr.begin(),arr.end());
        for(int i=1;i<arr.SI;i++){
            res=max(res,arr[i]-arr[i-1]);
        }
        R res;
    }
}
//int main(){
//    cout<<findGap(1,4);
//}
//void MinMax(ll s,ll t,ll *mn,ll *mx){
//    cout<<s<<" "<<t<<endl;
//    cin>>*mn>>*mx;
//}

Compilation message (stderr)

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:43:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for(int i=0;i<v[cur].SI;i++){
                          ^
gap.cpp:63:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int i=1;i<arr.SI;i++){
                      ^

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