Submission #1326140

#	Time	Username	Problem	Language	Result	Execution time	Memory
1326140		ppmn_6	Boxes with souvenirs (IOI15_boxes)	C++20	Compilation error	0 ms	0 KiB

boxes

#include "bits/stdc++.h"
#include "boxes.h"
using namespace std;
using ll = long long;
using ld = long double;
using ull = unsigned long long;
 
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
 
// https://codeforces.com/blog/entry/79148
class Timer: chrono::high_resolution_clock {
    const time_point start_time;
public:
    Timer(): start_time(now()) {}
    rep elapsed_time() const {
		return chrono::duration_cast<chrono::milliseconds>(now() - start_time).count();
	}
} timer;

ll delivery(int n, int k, int l, vector<int> v) {
	deque<ll> pos(n);
	ll ans = 0;
	for (int i = 0; i < n; i++) {
		pos[i] = v[i];
	}
	auto dist = [&] (ll x, ll y) {
		if (x > y) {
			swap(x, y);
		}
		return min(y - x, l - y + x);
	};
	auto trip = [&] (int x) {
		ll cur = 0;
		for (int i = 0; i < x; i++) {
			if (dist(cur, pos.front()) <= dist(cur, pos.back())) {
				ans += dist(cur, pos.front());
				cur = pos.front();
				pos.pop_front();
			}
			else {
				ans += dist(cur, pos.back());
				cur = pos.back();
				pos.pop_back();
			}
		}
		ans += dist(0, cur);
	};
	trip(n % k);
	for (int i = 0; i < n / k; i++) {
		trip(k);
	}
	return ans;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccAHPO2L.o: in function `main':
grader.c:(.text.startup+0x1e4): undefined reference to `delivery(int, int, int, int*)'
collect2: error: ld returned 1 exit status