oj.uz

Submission #1087837

# Submission time Handle Problem Language Result Execution time Memory
1087837 2024-09-13T10:02:30 Z akim9905 None (JOI14_ho_t4) C++17
25 / 100
 117 ms 26572 KB 
#include <bits/stdc++.h>
using namespace std;

#define fileio() freopen("input.txt","r",stdin); freopen("output.txt","w",stdout)
#define fio() ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define all(x) (x).begin(), (x).end()
#define allr(x) x.rbegin(), x.rend()
#define cmprs(x) sort(all(x)),x.erase(unique(all(x)),x.end())
#define endl "\n"
#define sp " "
#define pb push_back
#define lb lower_bound
#define ub upper_bound
#define F first
#define S second
#define rz resize
#define sz(a) (int)(a.size())
#define clr(a) a.clear()

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<int, ll> pil;
typedef tuple<int, int, int> tpi;
typedef tuple<ll, ll, ll> tpl;
typedef pair<double, ll> pdl;
typedef pair<double, int> pdi;

const int dx[] = {1,-1,0,0,1,1,-1,-1};
const int dy[] = {0,0,1,-1,1,-1,1,-1};
const ll MOD = 1e9+7;
const int INF = 0x3f3f3f3f;
const ll LINF = 0x3f3f3f3f3f3f3f3f;
const int MAX = 101010; // PLZ CHK!

int N,M;
ll X,H[MAX],D[MAX];
vector<pll> G[MAX];

int main() {
    fio();

    cin>>N>>M>>X;
    for (int i=1; i<=N; i++) cin>>H[i];
    for (int i=0; i<M; i++) {
        int u,v,w; cin>>u>>v>>w;
        G[u].pb({v,w}), G[v].pb({u,w});
    }

    fill(D,D+N+10,LINF);
    priority_queue<pll,vector<pll>,greater<pll>> pq;

    D[1]=0;
    pq.push({D[1],1});

    while (!pq.empty()) {
        auto [dst,cur]=pq.top(); pq.pop();
        if (dst!=D[cur]) continue;

        for (auto [nxt,cst]:G[cur]) {
            if (D[nxt]>D[cur]+cst*2 && H[cur]>=cst) {
                D[nxt]=D[cur]+cst*2;
                pq.push({D[nxt],nxt});
            }
        }
    }

    cout<<(D[N]==LINF?-1:D[N]+H[N]);

    return 0;
}

Subtask #1
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2908 KB Output is correct
2 Incorrect 2 ms 2908 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 117 ms 26572 KB Output is correct
2 Correct 87 ms 25476 KB Output is correct
3 Correct 63 ms 14260 KB Output is correct
4 Correct 100 ms 25284 KB Output is correct
5 Correct 75 ms 24224 KB Output is correct
6 Correct 5 ms 3928 KB Output is correct
7 Correct 92 ms 24996 KB Output is correct
8 Correct 99 ms 22308 KB Output is correct
9 Correct 89 ms 25264 KB Output is correct
10 Correct 63 ms 18768 KB Output is correct
11 Correct 11 ms 4756 KB Output is correct
12 Correct 56 ms 17656 KB Output is correct
13 Correct 26 ms 13144 KB Output is correct
14 Correct 91 ms 24648 KB Output is correct
15 Correct 4 ms 3416 KB Output is correct
16 Correct 77 ms 24064 KB Output is correct
17 Correct 15 ms 4776 KB Output is correct
18 Correct 14 ms 5212 KB Output is correct
19 Correct 42 ms 12000 KB Output is correct
20 Correct 12 ms 5468 KB Output is correct

Subtask #3
0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2908 KB Output is correct
2 Incorrect 2 ms 2908 KB Output isn't correct
3 Halted 0 ms 0 KB -