Submission #584826

#	Time	Username	Problem	Language	Result	Execution time	Memory
584826		jack715	Holiday (IOI14_holiday)	C++14	0 / 100	5089 ms	908 KiB

holiday

#include"holiday.h"
#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define pp pop_back
#define mp make_pair
#define bb back
#define ff first
#define ss second

using namespace std;

ll findtravel(int l, int r, int st) {
    if (l >= st) 
        return r-st;
    if (r <= st) 
        return st-l;
    return min(abs(st-l)*2+abs(st-r), abs(st-r)*2+abs(st-l));
}

long long int findMaxAttraction(int n, int start, int d, int attraction[]) {
    ll ans = 0, D = d, travel, now;
    set<int> nums;
    for (int i = 0; i < n; i++) {
        nums.clear(), now = 0;
        for (int j = i; j < n; j++) {
            nums.insert(attraction[j]), now += attraction[j];
            travel = findtravel(i, j, start);
            while (nums.size() > d-travel) 
                now -= *nums.begin(), nums.erase(*nums.begin());
            ans = max(ans, now);
        }
    }
    return ans;
}

Compilation message (stderr)

holiday.cpp: In function 'long long int findMaxAttraction(int, int, int, int*)':
holiday.cpp:29:32: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   29 |             while (nums.size() > d-travel)
      |                    ~~~~~~~~~~~~^~~~~~~~~~
holiday.cpp:22:17: warning: unused variable 'D' [-Wunused-variable]
   22 |     ll ans = 0, D = d, travel, now;
      |                 ^

• Subtask 1: 0 / 7
• Subtask 2: 0 / 23
• Subtask 3: 0 / 17
• Subtask 4: 0 / 53