답안 #269775

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
269775	2020-08-17T10:07:31 Z	sean9892	주유소 (KOI16_gas)	C++14	34 / 100	21 ms	25376 KB

gas

#include<bits/stdc++.h>
using namespace std;
using pii=pair<int,int>;
using dat=pair<int,pii>;
#define fi first
#define se second

vector<pii> g[2510];
int cst[2510];
int dst[2510][2510];

int main(void){
	ios::sync_with_stdio(0);cin.tie(0);
	
	int n,m;
	cin>>n>>m;
	for(int i=1;i<=n;i++){
		cin>>cst[i];
	}
	for(int i=0;i<m;i++){
		int a,b,c;
		cin>>a>>b>>c;
		g[a].emplace_back(b,c);
		g[b].emplace_back(a,c);
	}
	
	memset(dst,0x3f,sizeof(dst));
	dst[1][cst[1]]=0;
	priority_queue<dat> q;
	
	int res=0x3f3f3f3f;
	
	#define pushDat(d,x,c) q.push(dat(-(d),pii(x,c)))
	#define popDat(d,x,c) do{d=-q.top().fi;x=q.top().se.fi;c=q.top().se.se;q.pop();}while(0);
	
	pushDat(0,1,cst[1]);
	while(!q.empty()){
		int d,x,c;
		popDat(d,x,c);
		if(dst[x][c]<d)continue;
		if(x==n){
			res=min(res,d);
		}
		for(auto& e:g[x]){
			int i,w;
			tie(i,w)=e;
			if(dst[i][min(c,cst[i])]>d+c*w){
				dst[i][min(c,cst[i])]=d+c*w;
				pushDat(d+c*w,i,min(c,cst[i]));
			}
		}
	}
	
	#undef pushDat
	#undef popDat
	
	cout<<res;
}

Subtask #1

18.0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	15 ms	25088 KB	Output is correct
2	Correct	15 ms	25088 KB	Output is correct
3	Correct	15 ms	25088 KB	Output is correct
4	Correct	15 ms	25088 KB	Output is correct
5	Correct	16 ms	25088 KB	Output is correct
6	Correct	15 ms	25088 KB	Output is correct
7	Correct	15 ms	25088 KB	Output is correct
8	Correct	18 ms	25088 KB	Output is correct
9	Correct	15 ms	25088 KB	Output is correct
10	Correct	15 ms	25088 KB	Output is correct
11	Correct	15 ms	25088 KB	Output is correct
12	Correct	15 ms	25088 KB	Output is correct
13	Correct	15 ms	25088 KB	Output is correct

Subtask #2

0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	16 ms	25216 KB	Output is correct
2	Correct	16 ms	25176 KB	Output is correct
3	Correct	17 ms	25216 KB	Output is correct
4	Correct	18 ms	25216 KB	Output is correct
5	Incorrect	20 ms	25216 KB	Output isn't correct
6	Halted	0 ms	0 KB	-

Subtask #3

16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	21 ms	25216 KB	Output is correct
2	Correct	18 ms	25344 KB	Output is correct
3	Correct	19 ms	25376 KB	Output is correct
4	Correct	18 ms	25344 KB	Output is correct
5	Correct	17 ms	25344 KB	Output is correct
6	Correct	17 ms	25344 KB	Output is correct
7	Correct	17 ms	25344 KB	Output is correct
8	Correct	19 ms	25344 KB	Output is correct
9	Correct	17 ms	25216 KB	Output is correct
10	Correct	17 ms	25216 KB	Output is correct
11	Correct	17 ms	25216 KB	Output is correct

Subtask #4

0 / 24.0

#	결과	실행 시간	메모리	Grader output
1	Correct	15 ms	25088 KB	Output is correct
2	Correct	15 ms	25088 KB	Output is correct
3	Correct	15 ms	25088 KB	Output is correct
4	Correct	15 ms	25088 KB	Output is correct
5	Correct	16 ms	25088 KB	Output is correct
6	Correct	15 ms	25088 KB	Output is correct
7	Correct	15 ms	25088 KB	Output is correct
8	Correct	18 ms	25088 KB	Output is correct
9	Correct	15 ms	25088 KB	Output is correct
10	Correct	15 ms	25088 KB	Output is correct
11	Correct	15 ms	25088 KB	Output is correct
12	Correct	15 ms	25088 KB	Output is correct
13	Correct	15 ms	25088 KB	Output is correct
14	Incorrect	15 ms	25088 KB	Output isn't correct
15	Halted	0 ms	0 KB	-

Subtask #5

0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	15 ms	25088 KB	Output is correct
2	Correct	15 ms	25088 KB	Output is correct
3	Correct	15 ms	25088 KB	Output is correct
4	Correct	15 ms	25088 KB	Output is correct
5	Correct	16 ms	25088 KB	Output is correct
6	Correct	15 ms	25088 KB	Output is correct
7	Correct	15 ms	25088 KB	Output is correct
8	Correct	18 ms	25088 KB	Output is correct
9	Correct	15 ms	25088 KB	Output is correct
10	Correct	15 ms	25088 KB	Output is correct
11	Correct	15 ms	25088 KB	Output is correct
12	Correct	15 ms	25088 KB	Output is correct
13	Correct	15 ms	25088 KB	Output is correct
14	Correct	16 ms	25216 KB	Output is correct
15	Correct	16 ms	25176 KB	Output is correct
16	Correct	17 ms	25216 KB	Output is correct
17	Correct	18 ms	25216 KB	Output is correct
18	Incorrect	20 ms	25216 KB	Output isn't correct
19	Halted	0 ms	0 KB	-