oj.uz

답안 #391715

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
391715 2021-04-19T15:23:27 Z cpp219 악어의 지하 도시 (IOI11_crocodile) C++14
100 / 100
 1281 ms 84980 KB 
#include<bits/stdc++.h>
#define ll int
#define ld long double
#define fs first
#define sc second
using namespace std;
typedef pair<long long,long long> LL;
const ll N = 1e5 + 9;
const long long inf = 1e9;
//#include "crocodile.h"
vector<ll> vec;
vector<LL> g[N];
LL d[N];
ll ans;
struct Node{
    long long cur,w1,w2;
};

bool operator < (Node a,Node b){
    return a.w2 < b.w2||(a.w2 == b.w2 && a.w1 < b.w1)||(a.w2 == b.w2 && a.w1 == b.w1 && a.cur < b.cur);
}
set<Node> s;

void update(LL &x,long long y){
    if (x.fs >= y) x.sc = x.fs,x.fs = y;
    else if (x.sc > y) x.sc = y;
}

void Dij(ll n){
    for (ll i = 0;i < n;i++) d[i] = {inf,inf};
    for (auto i : vec) d[i] = {0,0},s.insert({i,0,0});
    while(!s.empty()){
        Node t = *s.begin(); s.erase(s.begin());
        ll u = t.cur,cost = t.w2;
        for (auto i : g[u]){
            ll v = i.fs,L = i.sc;
            if (d[v].sc > cost + L){
                s.erase({v,d[v].fs,d[v].sc});
                update(d[v],cost + L); s.insert({v,d[v].fs,d[v].sc});
            }
        }
    }
    ans = d[0].sc;
}

ll travel_plan(ll n,ll m,ll R[][2],ll lens[],ll k,ll a[]){
    for (ll i = 0;i < k;i++) vec.push_back(a[i]);
    for (ll i = 0;i < m;i++){
        ll u = R[i][0],v = R[i][1],L = lens[i];
        g[u].push_back({v,L}); g[v].push_back({u,L});
    }
    Dij(n); return ans;
}

Subtask #1
46.0 / 46.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2640 KB Output is correct
2 Correct 2 ms 2636 KB Output is correct
3 Correct 2 ms 2636 KB Output is correct
4 Correct 3 ms 2764 KB Output is correct
5 Correct 3 ms 2764 KB Output is correct
6 Correct 3 ms 2764 KB Output is correct
7 Correct 3 ms 2764 KB Output is correct
8 Correct 3 ms 2764 KB Output is correct

Subtask #2
43.0 / 43.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2640 KB Output is correct
2 Correct 2 ms 2636 KB Output is correct
3 Correct 2 ms 2636 KB Output is correct
4 Correct 3 ms 2764 KB Output is correct
5 Correct 3 ms 2764 KB Output is correct
6 Correct 3 ms 2764 KB Output is correct
7 Correct 3 ms 2764 KB Output is correct
8 Correct 3 ms 2764 KB Output is correct
9 Correct 4 ms 3020 KB Output is correct
10 Correct 2 ms 2636 KB Output is correct
11 Correct 3 ms 2844 KB Output is correct
12 Correct 6 ms 3280 KB Output is correct
13 Correct 5 ms 3404 KB Output is correct
14 Correct 3 ms 2636 KB Output is correct
15 Correct 3 ms 2764 KB Output is correct

Subtask #3
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2640 KB Output is correct
2 Correct 2 ms 2636 KB Output is correct
3 Correct 2 ms 2636 KB Output is correct
4 Correct 3 ms 2764 KB Output is correct
5 Correct 3 ms 2764 KB Output is correct
6 Correct 3 ms 2764 KB Output is correct
7 Correct 3 ms 2764 KB Output is correct
8 Correct 3 ms 2764 KB Output is correct
9 Correct 4 ms 3020 KB Output is correct
10 Correct 2 ms 2636 KB Output is correct
11 Correct 3 ms 2844 KB Output is correct
12 Correct 6 ms 3280 KB Output is correct
13 Correct 5 ms 3404 KB Output is correct
14 Correct 3 ms 2636 KB Output is correct
15 Correct 3 ms 2764 KB Output is correct
16 Correct 738 ms 80792 KB Output is correct
17 Correct 90 ms 17540 KB Output is correct
18 Correct 172 ms 20052 KB Output is correct
19 Correct 1281 ms 84980 KB Output is correct
20 Correct 325 ms 67980 KB Output is correct
21 Correct 51 ms 9740 KB Output is correct
22 Correct 383 ms 64016 KB Output is correct