Submission #739694

#	Time	Username	Problem	Language	Result	Execution time	Memory
739694		ReLice	Gap (APIO16_gap)	C++14	100 / 100	60 ms	2252 KiB

gap

#include "gap.h"
#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define sz size()
using namespace std;
const ll inf=1e18+7;
long long findGap(int t, int n){
    ll ans=0,a,b,c,d,i,j,l,r;
    if(t==1){
        a=1,b=inf;
        MinMax(a,b,&c,&d);
        vector <ll> v;
        v.pb(c);
        v.pb(d);
        for(i=1;i<(n+1)/2;i++){
            a=c+1;
            b=d-1;
            MinMax(a,b,&c,&d);
            v.pb(c);
            v.pb(d);
        }
        sort(v.begin(),v.end());
        for(i=1;i<v.sz;i++){
            ans=max(ans,v[i]-v[i-1]);
        }
    }
    else{
        a=1,b=inf;
        MinMax(a,b,&c,&d);
        vector <ll> v;
        v.pb(c),v.pb(d);
        l=d,r=c;
        j=(d-c-1)%(n-1);
        for(i=r+1;i<l;i+=(l-r-1)/(n-1)){
            a=i;
            if(j>0){
                i++;
                j--;
            }
            b=i+(l-r-1)/(n-1)-1;
            MinMax(a,b,&c,&d);
            if(c==-1) continue;
            v.pb(c);
            if(c!=d)v.pb(d);
        }
        sort(v.begin(),v.end());
        for(i=1;i<v.sz;i++){
            ans=max(ans,v[i]-v[i-1]);
        }
    }
	return ans;
}

Compilation message (stderr)

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:24:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |         for(i=1;i<v.sz;i++){
      |                  ^
gap.cpp:48:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |         for(i=1;i<v.sz;i++){
      |                  ^

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