Submission #1050392

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1050392	2024-08-09T09:03:07 Z	Arp	Train (APIO24_train)	C++17	Compilation error	0 ms	0 KB

train

#include <bits/stdc++.h>
using namespace std;

using i64 = long long;
const i64 inf = 1e18;

vector<int> b;

struct item{
	i64 cost;
	int wh;
	item(i64 _cost = 0,int _wh = 0){
		cost = _cost;
		wh = _wh;
	}
	bool operator > (const item & i) const{
		if(i.cost == cost){
			return (wh == 0 ? 0 : b[i.wh - 1]) < (wh == 0 ? 0 : b[wh - 1]);
		}
		return i.cost < cost;		
	}
};

i64 solve(int N, int M, int W, std::vector<int> T,
	vector<int> X, vector<int> Y,
	vector<int> A, vector<int> B, vector<int> C,
	vector<int> L, vector<int> R){

	b = B;

		assert(W == 0);

		vector<vector<int>> adj(N);
		for(int i = 0;i < M;i++){
			adj[X[i]].push_back(i);
		}

		vector<i64> dist(M + 1,inf);

		priority_queue<item,vector<item>,greater<item>> pq;	
		dist[0] = 0;

		pq.push(item(0,0));
		// pq.push(item(1,0,0,0));

		while(!pq.empty()){
			auto top = pq.top();
			pq.pop();

			i64 cost = top.cost;
			int wh = top.wh;
			int u = X[wh];
			int time = B[wh - 1];

			if(dist[wh] != cost){
				continue;
			}

			for(int v : adj[u]){
				if(A[v] >= time && dist[v + 1] > cost + C[v]){
					pq.push(item(cost + C[v],v + 1));
					dist[v + 1] = C[v] + cost;
				}
			}

		}
		i64 ans = inf;
		for(int i = 1;i <= M;i++){
			if(Y[i - 1] == N - 1){
				ans = min(ans,dist[i]);
			}
		}
		if(ans == inf) return -1;
		else return ans;
}

int main(){

	
	cout << solve(3, 3, 0, {20, 30, 40}, {0, 1, 0}, {1, 2, 2},
	{1, 20, 18}, {15, 30, 40}, {10, 5, 40}, {}, {}) << '\n';

	cout << solve(3, 5, 0, {30, 38, 33}, {0, 1, 0, 0, 1}, {2, 0, 1, 2, 2},
	{12, 48, 26, 6, 49}, {16, 50, 28, 7, 54}, {38, 6, 23, 94, 50},
	{32, 14, 42, 37, 2, 4}, {36, 14, 45, 40, 5, 5}) << '\n';

	return 0;
}

Compilation message

/usr/bin/ld: /tmp/cc1gcQhV.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccZ1aQIV.o:train.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status