oj.uz

답안 #530116

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
530116 2022-02-24T16:08:10 Z 4fecta Designated Cities (JOI19_designated_cities) C++17
7 / 100
 245 ms 36756 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define int ll
#define ld long double
#define pii pair<int, int>
#define f first
#define s second
#define boost() cin.tie(0), cin.sync_with_stdio(0)

struct edge {
    int u, f, b;
};

const int MN = 200005;

int n, q, u, v, w, x, cost, ans[MN];
vector<edge> a[MN];

void dfs1(int cur, int par) {
    for (auto nxt : a[cur]) {
        if (nxt.u == par) continue;
        cost += nxt.f;
        dfs1(nxt.u, cur);
    }
}

void dfs2(int cur, int par) {
    ans[1] = min(ans[1], cost);
    for (auto nxt : a[cur]) {
        if (nxt.u == par) continue;
        cost += nxt.b - nxt.f;
        dfs2(nxt.u, cur);
        cost += nxt.f - nxt.b;
    }
}

void solve1() {
    dfs1(1, 0);
    dfs2(1, 0);
}

int32_t main() {
    boost();

    memset(ans, 0x3f, sizeof(ans));
    cin >> n;
    for (int i = 1; i < n; i++) {
        cin >> u >> v >> w >> x;
        a[u].push_back({v, w, x});
        a[v].push_back({u, x, w});
    }
    solve1();
    cin >> q;
    while (q--) {
        cin >> x;
        printf("%lld\n", ans[x]);
    }

    return 0;
}

Subtask #1
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 4 ms 6476 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 6476 KB Output is correct
2 Correct 223 ms 25964 KB Output is correct
3 Correct 239 ms 36312 KB Output is correct
4 Correct 178 ms 24592 KB Output is correct
5 Correct 178 ms 25888 KB Output is correct
6 Correct 208 ms 27668 KB Output is correct
7 Correct 166 ms 24780 KB Output is correct
8 Correct 245 ms 36756 KB Output is correct
9 Correct 120 ms 23924 KB Output is correct

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 3 ms 6476 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 4 ms 6476 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 6476 KB Output is correct
2 Correct 223 ms 25964 KB Output is correct
3 Correct 239 ms 36312 KB Output is correct
4 Correct 178 ms 24592 KB Output is correct
5 Correct 178 ms 25888 KB Output is correct
6 Correct 208 ms 27668 KB Output is correct
7 Correct 166 ms 24780 KB Output is correct
8 Correct 245 ms 36756 KB Output is correct
9 Correct 120 ms 23924 KB Output is correct
10 Incorrect 3 ms 6476 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #6
0 / 44.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 4 ms 6476 KB Output isn't correct
2 Halted 0 ms 0 KB -