Submission #569675

#	Time	Username	Problem	Language	Result	Execution time	Memory
569675		ali22413836	Gap (APIO16_gap)	C++14	30 / 100	3098 ms	8128 KiB

gap

#include "gap.h"
#include <bits/stdc++.h>
#define  endl "\n"
using namespace std ;
typedef long long ll;
typedef long double ld ;
const int N=2e7;
const ll inf=1e18 ;
const ll mod = 1e9 + 7 ;
ll mypower(ll x, ll y){
    if(y == 0) return 1 ;
    if(y == 1) return x ;
    ll ret = mypower(x , y / 2);
    ret = (ret * ret) % mod;
    if(y % 2) ret = ( ret * x ) % mod ;
    return ret ;
}
map < ll , ll > mp ;
vector < ll > v  ;
long long findGap(int T, int N)
{
    ll n = N ; 
    ll mn = -1,  mx = 1e18 ;
    if(T == 1){
        ll l = -1 , r = 1e18 + 1 ;
        while(v.size() != N){
            MinMax(l , r , &mn , &mx) ;
            if(mn == -1 && mx == -1){
                break ;
            }
            if(mp.count(mn) == 0){
                mp[mn] = 1 ;
                v.push_back(mn) ;
                l = mn + 1 ;
            }
            if(mp.count(mx) == 0){
                mp[mx] = 1 ;
                v.push_back(mx) ;
                r = mx - 1;
            }
        }
        sort(v.begin() , v.end()) ;
        ll ans = 0 ;
        for(int i = 1 ; i < N ; i++){
            ans = max(ans , v[i] - v[i - 1]) ;
        }
        return ans ;
    }
    else{
        MinMax(mn , mx , &mn , &mx) ;
        ll len = (mx - mn + 1) / (n - 1) ;
        ll q = mn ;
        ll ans = 0 ;
        ll la = mx ; 
        for(int i = mn + 1 ; i <= la ; i += len + 1){
            MinMax(i , i + len , &mn , &mx) ;
            if(mn != -1){
                ans = max(ans , mn - q) ;
                q = mx ;
            }
        }
        return ans ;
    }
}

Compilation message (stderr)

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:26:24: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   26 |         while(v.size() != N){
      |               ~~~~~~~~~^~~~

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