Submission #1222487

#	Time	Username	Problem	Language	Result	Execution time	Memory
1222487		vidux	Roller Coaster Railroad (IOI16_railroad)	C++17	34 / 100	34 ms	9032 KiB

railroad

#include "railroad.h"

#include <bits/stdc++.h>
#define fi first
#define se second
#define ALL(x) (x.begin()), (x.end())
#define DEBUG(x) cerr << #x << ": " << x << endl;
#define DEBUG_ARR(x) cerr << #x << ": "; for (auto &y : x) cout << y << " "; cout << endl;
#define SZ(x) ((int)x.size())
using namespace std;
typedef long long ll;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

long long plan_roller_coaster(std::vector<int> s, std::vector<int> t) {
    int n = SZ(s);
	vvl dp(n, vl(1<<n, 1e18));
	for (int i = 0; i < n; i++) dp[i][1<<i] = 0;
	for (int mask = 1; mask < (1<<n); mask++) {
		for (int b = 0; b < n; b++) if (mask&(1<<b)) {
			int pr = mask&~(1<<b);
			for (int pb = 0; pb < n; pb++) if (pr&(1<<pb)) {
				dp[b][mask] = min(dp[b][mask], dp[pb][pr] + (ll)max(0, t[pb]-s[b]));
			}
		}
	}
	ll ans = 1e18;
	for (int i = 0; i < n; i++) ans = min(ans, dp[i][(1<<n)-1]);
    return ans;
}

Compilation message (stderr)

railroad.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
railroad_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

• Subtask 1: 11 / 11
• Subtask 2: 23 / 23
• Subtask 3: 0 / 30
• Subtask 4: 0 / 36