oj.uz

답안 #430113

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
430113 2021-06-16T11:32:15 Z 2qbingxuan 별자리 3 (JOI20_constellation3) C++17
35 / 100
 17 ms 12620 KB 
#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
#ifdef local
#define safe cerr<<__PRETTY_FUNCTION__<<" line "<<__LINE__<<" safe\n"
#define pary(a...) danb(#a, a)
#define debug(a...) qqbx(#a, a)
template <typename ...T> void qqbx(const char *s, T ...a) {
    int cnt = sizeof...(T);
    ((std::cerr << "\033[1;32m(" << s << ") = (") , ... , (std::cerr << a << (--cnt ? ", " : ")\033[0m\n")));
}
template <typename T> void danb(const char *s, T L, T R) {
    std::cerr << "\033[1;32m[ " << s << " ] = [ ";
    for (int f = 0; L != R; ++L)
        std::cerr << (f++ ? ", " : "") << *L;
    std::cerr << " ]\033[0m\n";
}
#else
#define debug(...) ((void)0)
#define safe ((void)0)
#define pary(...) ((void)0)
#endif // local
#define all(v) begin(v),end(v)
#define pb emplace_back

using namespace std;
using ll = long long;
using ld = long double;
template <typename T> using min_heap = priority_queue<T, vector<T>, greater<T>>;
const int mod = 1000000007;
const int inf = 1e9;
const ll INF = 1e18;
const int maxn = 100025;

void chmax(ll &x, ll v) {
    if (x < v) x = v;
}
bool alive[maxn];

int pa[maxn];
int anc(int x) { return x==pa[x] ? x : pa[x]=anc(pa[x]); }
vector<pair<int,ll>> top[maxn];
ll dp[maxn];
void join(int a, int b, int h) {
    a = anc(a);
    b = anc(b);
    assert (a != b);
    for (auto [y, val]: top[a]) {
        if (y <= h)
            chmax(dp[a], val);
    }
    for (auto [y, val]: top[b]) {
        if (y <= h)
            chmax(dp[b], val);
    }
    vector<pair<int,ll>> tmptop;
    ll tmpdp = dp[b] + dp[a];
    for (auto [y, val]: top[a]) {
        if (y > h)
            tmptop.emplace_back(y, val + dp[b]);
    }
    for (auto [y, val]: top[b]) {
        if (y > h)
            tmptop.emplace_back(y, val + dp[a]);
    }
    top[b] = tmptop;
    dp[b] = tmpdp;
    pa[a] = b;
}
signed main() {
    ios_base::sync_with_stdio(0), cin.tie(0);
    int n;
    cin >> n;
    iota(pa, pa+n, 0);
    vector<int> A(n);
    for (int i = 0; i < n; i++) {
        cin >> A[i];
    }
    int m;
    cin >> m;
    ll tot = 0, ans = 0;
    for (int i = 0; i < m; i++) {
        int x, y, c;
        cin >> x >> y >> c;
        --x;
        top[x].emplace_back(y, c);
        tot += c;
    }
    map<int, vector<int>> mp;
    for (int i = 0; i < n; i++) mp[A[i]].push_back(i);
    for (const auto &[h, indices]: mp) {
        for (int i: indices) {
            if (i > 0 && alive[i-1]) {
                join(i-1, i, h);
            }
            if (i+1 < n && alive[i+1]) {
                join(i, i+1, h);
            }
            alive[i] = true;
        }
    }
    for (auto [y, val]: top[anc(0)]) chmax(ans, val);
    chmax(ans, dp[anc(0)]);
    cout << tot - ans << '\n';
}

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 2636 KB Output is correct
2 Correct 3 ms 2748 KB Output is correct
3 Correct 3 ms 2636 KB Output is correct
4 Correct 4 ms 2684 KB Output is correct
5 Correct 3 ms 2636 KB Output is correct
6 Correct 3 ms 2636 KB Output is correct
7 Correct 3 ms 2680 KB Output is correct
8 Correct 4 ms 2640 KB Output is correct
9 Correct 3 ms 2684 KB Output is correct
10 Correct 3 ms 2848 KB Output is correct
11 Correct 3 ms 2764 KB Output is correct
12 Correct 3 ms 2816 KB Output is correct
13 Correct 3 ms 2764 KB Output is correct
14 Correct 3 ms 2764 KB Output is correct
15 Correct 4 ms 2764 KB Output is correct
16 Correct 3 ms 2636 KB Output is correct
17 Correct 3 ms 2636 KB Output is correct
18 Correct 4 ms 2808 KB Output is correct
19 Correct 3 ms 2636 KB Output is correct
20 Correct 3 ms 2636 KB Output is correct
21 Correct 4 ms 2764 KB Output is correct
22 Correct 3 ms 2764 KB Output is correct

Subtask #2
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 2636 KB Output is correct
2 Correct 3 ms 2748 KB Output is correct
3 Correct 3 ms 2636 KB Output is correct
4 Correct 4 ms 2684 KB Output is correct
5 Correct 3 ms 2636 KB Output is correct
6 Correct 3 ms 2636 KB Output is correct
7 Correct 3 ms 2680 KB Output is correct
8 Correct 4 ms 2640 KB Output is correct
9 Correct 3 ms 2684 KB Output is correct
10 Correct 3 ms 2848 KB Output is correct
11 Correct 3 ms 2764 KB Output is correct
12 Correct 3 ms 2816 KB Output is correct
13 Correct 3 ms 2764 KB Output is correct
14 Correct 3 ms 2764 KB Output is correct
15 Correct 4 ms 2764 KB Output is correct
16 Correct 3 ms 2636 KB Output is correct
17 Correct 3 ms 2636 KB Output is correct
18 Correct 4 ms 2808 KB Output is correct
19 Correct 3 ms 2636 KB Output is correct
20 Correct 3 ms 2636 KB Output is correct
21 Correct 4 ms 2764 KB Output is correct
22 Correct 3 ms 2764 KB Output is correct
23 Correct 6 ms 2892 KB Output is correct
24 Correct 4 ms 3020 KB Output is correct
25 Correct 4 ms 2892 KB Output is correct
26 Correct 5 ms 3020 KB Output is correct
27 Correct 5 ms 3020 KB Output is correct
28 Correct 5 ms 2892 KB Output is correct
29 Correct 4 ms 2892 KB Output is correct
30 Correct 4 ms 3020 KB Output is correct
31 Correct 4 ms 2892 KB Output is correct
32 Correct 14 ms 10060 KB Output is correct
33 Correct 16 ms 9420 KB Output is correct
34 Correct 13 ms 8024 KB Output is correct
35 Correct 11 ms 8008 KB Output is correct
36 Correct 16 ms 12620 KB Output is correct
37 Correct 13 ms 12296 KB Output is correct
38 Correct 4 ms 3020 KB Output is correct
39 Correct 5 ms 3076 KB Output is correct
40 Correct 16 ms 8780 KB Output is correct
41 Correct 5 ms 3404 KB Output is correct
42 Correct 5 ms 3076 KB Output is correct
43 Correct 17 ms 9156 KB Output is correct
44 Correct 6 ms 3276 KB Output is correct

Subtask #3
0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 2636 KB Output is correct
2 Correct 3 ms 2748 KB Output is correct
3 Correct 3 ms 2636 KB Output is correct
4 Correct 4 ms 2684 KB Output is correct
5 Correct 3 ms 2636 KB Output is correct
6 Correct 3 ms 2636 KB Output is correct
7 Correct 3 ms 2680 KB Output is correct
8 Correct 4 ms 2640 KB Output is correct
9 Correct 3 ms 2684 KB Output is correct
10 Correct 3 ms 2848 KB Output is correct
11 Correct 3 ms 2764 KB Output is correct
12 Correct 3 ms 2816 KB Output is correct
13 Correct 3 ms 2764 KB Output is correct
14 Correct 3 ms 2764 KB Output is correct
15 Correct 4 ms 2764 KB Output is correct
16 Correct 3 ms 2636 KB Output is correct
17 Correct 3 ms 2636 KB Output is correct
18 Correct 4 ms 2808 KB Output is correct
19 Correct 3 ms 2636 KB Output is correct
20 Correct 3 ms 2636 KB Output is correct
21 Correct 4 ms 2764 KB Output is correct
22 Correct 3 ms 2764 KB Output is correct
23 Correct 6 ms 2892 KB Output is correct
24 Correct 4 ms 3020 KB Output is correct
25 Correct 4 ms 2892 KB Output is correct
26 Correct 5 ms 3020 KB Output is correct
27 Correct 5 ms 3020 KB Output is correct
28 Correct 5 ms 2892 KB Output is correct
29 Correct 4 ms 2892 KB Output is correct
30 Correct 4 ms 3020 KB Output is correct
31 Correct 4 ms 2892 KB Output is correct
32 Correct 14 ms 10060 KB Output is correct
33 Correct 16 ms 9420 KB Output is correct
34 Correct 13 ms 8024 KB Output is correct
35 Correct 11 ms 8008 KB Output is correct
36 Correct 16 ms 12620 KB Output is correct
37 Correct 13 ms 12296 KB Output is correct
38 Correct 4 ms 3020 KB Output is correct
39 Correct 5 ms 3076 KB Output is correct
40 Correct 16 ms 8780 KB Output is correct
41 Correct 5 ms 3404 KB Output is correct
42 Correct 5 ms 3076 KB Output is correct
43 Correct 17 ms 9156 KB Output is correct
44 Correct 6 ms 3276 KB Output is correct
45 Runtime error 7 ms 6220 KB Execution killed with signal 11
46 Halted 0 ms 0 KB -