oj.uz

답안 #533483

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
533483 2022-03-06T07:19:38 Z Slavita Autobus (COCI22_autobus) C++14
30 / 70
 1000 ms 1276 KB 
#include <bits/stdc++.h>
/*#pragma optimize("O3")
#pragma GCC optimize("-O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("fast-math")*/
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
#define ve vector<int>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define pi pair<int,int>
#define all(v) v.begin(),v.end()
#define si(v) (int)v.size()
#define en '\n'
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
#define ordered_muiltiset tree<int, null_type,less_equal<>, rb_tree_tag,tree_order_statistics_node_update>
//#define int long long
using namespace std;
//using namespace __gnu_pbds;
typedef long long ll;
typedef unsigned long long ull;

const int N = 1e3 + 228;
const int big = 1e9 + 228;
const ll llbig = 1e18 + 228;
//ordered_set os; // os.order_of_key(4), (*os.find_by_order(5))
ll n, m, ans, k, q, dp[N][N], mem[N][N];
priority_queue<pair<pair<ll, ll>, ll>> Q;

void upd(ll &a, ll b){
    if (b < a) a = b;
}

//#undef int
int main(){
    //#define int long long
    iostream::sync_with_stdio(false); cin.tie(0); ios_base::sync_with_stdio(false); cout.tie(0);
    //freopen("input.txt","r",stdin);
    //freopen("output.txt","w",stdout);
    cin >> n >> m;
    for (int i = 1; i <= m; i++){
        ll a, b, t;
        cin >> a >> b >> t;
        if (mem[a][b] == 0) mem[a][b] = t;
        else mem[a][b] = min(mem[a][b], t);
    }

    cin >> k >> q;
    while(q--){
        ll start, finish;
        cin >> start >> finish;
        Q.push({{0, 0}, start});

        for (int i = 1; i <= n; i++)
            for (int j = 0; j <= n; j++) dp[i][j] = llbig;
        dp[start][0] = 0;

        for (int kol = 0; kol < k; kol++){
            for (int v = 1; v <= n; v++){
                if (dp[v][kol] == llbig) continue;
                for (int u = 1; u <= n; u++){
                    ll c = mem[v][u];
                    if (u == v) continue;
                    if (!c) continue;
                    upd(dp[u][kol + 1], dp[v][kol] + c);
                }
            }
        }

        ll mn = llbig;
        for (int kol = 0; kol <= k; kol++){
            mn = min(mn, dp[finish][kol]);
        }

        if (mn == llbig) cout << -1 << en;
        else cout << mn << en;
    }
    return 0;
}

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 19 ms 1268 KB Output is correct
2 Correct 22 ms 1276 KB Output is correct
3 Correct 54 ms 1184 KB Output is correct
4 Correct 52 ms 1184 KB Output is correct
5 Correct 111 ms 1248 KB Output is correct
6 Correct 90 ms 1172 KB Output is correct
7 Correct 197 ms 1216 KB Output is correct

Subtask #3
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Execution timed out 1091 ms 1272 KB Time limit exceeded
8 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 19 ms 1268 KB Output is correct
8 Correct 22 ms 1276 KB Output is correct
9 Correct 54 ms 1184 KB Output is correct
10 Correct 52 ms 1184 KB Output is correct
11 Correct 111 ms 1248 KB Output is correct
12 Correct 90 ms 1172 KB Output is correct
13 Correct 197 ms 1216 KB Output is correct
14 Execution timed out 1091 ms 1272 KB Time limit exceeded
15 Halted 0 ms 0 KB -