Submission #50775

#	Time	Username	Problem	Language	Result	Execution time	Memory
50775		Just_Solve_The_Problem	Holiday (IOI14_holiday)	C++11	30 / 100	335 ms	1000 KiB

holiday

#include <bits/stdc++.h>
#include"holiday.h"

using namespace std;

#define pb push_back
#define sz(s) (int)s.size()
#define ll long long

int cnt[123];

long long int findMaxAttraction(int n, int start, int d, int attraction[]) {
  ll ans = 0;
  if (n <= 20) {
    for (int mask = 1; mask < (1 << n); mask++) {
      vector < int > v;
      for (int i = 0; i < n; i++) {
        if (mask & (1 << i)) {
          v.pb(i);
        }
      }
      ll res = 0;
      ll time = sz(v);
      if (start > v.back() || start < v[0]) {
        if (start > v.back()) {
          time += abs(start - v[0]);
        } else {
          time += abs(start - v.back());
        }
      } else {
        time += min(abs(start - v[0]), abs(start - v.back())) + v.back() - v[0];
      }
      for (int to : v) {
        res += attraction[to];
      }
      if (time <= d) {
        ans = max(ans, res);
      }
    }
  } else if (start == 0) {
    ll res;
    for (int i = 0; i < n; i++) {
      cnt[attraction[i]]++;
      res = 0;
      int cn = 0;
      for (int j = 100; j >= 0; j--) {
        res += cnt[j] * j;
        if (i + cn + cnt[j] > d) {
          res -= (i + cn + cnt[j] - d) * j;
          break;
        }
        cn += cnt[j];
      }
      ans = max(ans, res);
    }
  }
  return ans;
}

Compilation message (stderr)

grader.cpp: In function 'int main()':
grader.cpp:7:12: warning: variable 'n_s' set but not used [-Wunused-but-set-variable]
     int i, n_s;
            ^~~

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