Submission #838399

#	Time	Username	Problem	Language	Result	Execution time	Memory
838399		beaboss	Journey (NOI18_journey)	C++14	20 / 100	1 ms	468 KiB

journey

// Source: https://oj.uz/problem/view/NOI18_journey
// 

#include "bits/stdc++.h"

using namespace std;

#define s second
#define f first
#define pb push_back

typedef long long ll;

typedef pair<int, int> pii;
typedef vector<pii> vpii;

typedef vector<int> vi;

#define FOR(i, a, b) for (int i = (a); i<b; i++)

const int N = 1e4 + 10;
const int D = 404;
vpii adj[N];
int in[N];
int dp[N][D];

int main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);

	int n, m, h;
	cin >> n >> m >> h;

	FOR(i, 0, n - 1) {
		FOR(j, 0, h) {
			int w, c;
			cin >> c >> w;
			if (c < i) continue;
			adj[i].pb({c, w});
			in[c]++;
		}
	}

	queue<int> q;

	q.push(0);
	dp[0][0]=1;


	while (!q.empty()) {
		auto cur = q.front();
		q.pop();

		for (auto val: adj[cur]) {
			int nxt, wt;
			tie(nxt, wt) = val;

			int cur_sum = 0;
			for (int i = 0; i + wt <= m; i++) {
				cur_sum = min(cur_sum + dp[cur][i], (int) 5e8 + 1);
				dp[nxt][i + wt] = min(dp[nxt][i + wt] + cur_sum, (int) 5e8 + 1); 
			}



			in[nxt]--;
			if (in[nxt] == 0) q.push(nxt);
		}

	
	}

	FOR(i, 0, m) cout << dp[n-1][i] << ' ';
	cout << endl;
}

• Subtask 1: 20 / 20
• Subtask 2: 0 / 23
• Subtask 3: 0 / 26
• Subtask 4: 0 / 31