Submission #935694

#	Time	Username	Problem	Language	Result	Execution time	Memory
935694		zhasyn	Boxes with souvenirs (IOI15_boxes)	C++14	0 / 100	3 ms	440 KiB

boxes

#include <bits/stdc++.h>
#define pb push_back
#define pf push_front
using namespace std;
#define F first
#define S second
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
typedef long long ll;
#define pii pair <int, int>
#define pll pair <ll, ll>
typedef long double ld;
const ll N = 3 * 1e5 + 10, M = 5000 + 10, inf = 1e18;
const ll mod = 998244353;
ll um(ll a, ll b){
	return (1LL * a * b) % mod;
}
ll subr(ll a, ll b){
	return ((1LL * a - b) % mod + mod) % mod;
}
ll ans;
ll delivery(int n, int k, int l, int pos[]){
	// ((n + k - 1) / k) * l
	ll ans = ((n + k - 1) / k) * l, j = 0, cnt = 0, plus = 0, local = 0;
	while(j <= n){
		ll cnt2 = 0, plus2 = 0, local2 = 0;
		for(ll i = n - 1; i >= j; i--){
			cnt2++;
			if(cnt2 == k){
				cnt2 = plus2 = 0;
				local2 += (l - pos[i]) * 2;
			} else plus2 = (l - pos[i]) * 2;
			ans = min(ans, local + plus + local2 + plus2 + l * ((i - j + k - 1) / k));
			//cout << local << " " << plus << " "<< local2 << " "<< plus2 << " "<< l * ((i - j + k - 1) / k) << endl;
		}
		
		cnt++;
		j++;
		if(cnt == k){
			cnt = plus = 0;
			local += pos[j - 1] * 2;
		} else plus = pos[j - 1] * 2;
	}
	return ans;
}
// int main() {
  // ios::sync_with_stdio(false);
  // cin.tie(NULL);
  // //freopen("max.in", "r", stdin);
  // //freopen("max.out", "w", stdout);
  // int n, k, l;
  // cin >> n >> k >> l;
  // int pos[n];
  // for(int i = 0; i < n; i++){
  	// cin >> pos[i];
  // }
  // sort(pos, pos + n);
  // cout << delivery(n, k, l, pos);
  // return 0;
// }

Compilation message (stderr)

boxes.cpp: In function 'll delivery(int, int, int, int*)':
boxes.cpp:23:5: warning: declaration of 'ans' shadows a global declaration [-Wshadow]
   23 |  ll ans = ((n + k - 1) / k) * l, j = 0, cnt = 0, plus = 0, local = 0;
      |     ^~~
boxes.cpp:20:4: note: shadowed declaration is here
   20 | ll ans;
      |    ^~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30