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답안 #1083754

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1083754 2024-09-04T03:58:19 Z phong 별자리 3 (JOI20_constellation3) C++17
100 / 100
 446 ms 119124 KB 
#include<bits/stdc++.h>

#define ll long long
#define int long long
const int nmax = 2e5 + 5, N = 1e5;
const ll oo = 1e18 + 1, base = 311;
const int lg = 20, M = 10;
const ll mod = 998244353, mod2 = 1e9 + 5277;
#define pii pair<int, int>
#define fi first
#define se second
#define endl "\n"
#define debug(a, n) for(int i = 1; i <= n; ++i) cout << a[i] << ' '; cout << "\n";
using namespace std;

int n, m;
int rmq[nmax][lg + 1], a[nmax];
map<int, int> dp[nmax], g[nmax];
ll f[nmax];

int calc(int u, int j){
//    if(f[u] < g[u][j]) cout << "?";
    dp[u][j] += f[u] - g[u][j];
    g[u][j] = f[u];
    return dp[u][j];
}
int get(int l, int r){
    int k = __lg(r - l + 1);
    int x = rmq[l][k], y = rmq[r - (1 << k) + 1][k];
    if(a[x] > a[y])return x;
    else return y;
}
int one[nmax];

int get(int u){
    return one[u] ? one[u] = get(one[u]) : u;
}
int lmao(int x, int y){
    ll res = 0;
    while(dp[x].size()){
        pii it = *dp[x].begin();
        if(it.fi <= y){
            res = max(res, calc(x, it.fi));
            dp[x].erase(dp[x].begin());
        }
        else break;
    }
    return res;
}
int solve(int l, int r){
    if(l == r) return l;
    int p = get(l, r);
    if(l < p && p < r){
        int x = get(solve(l, p - 1));
        int y = get(solve(p + 1, r));

        if(dp[x].size() > dp[y].size()) swap(x, y);
        one[x] = y;
        int t1 = lmao(x, a[p]);
        int t2 = lmao(y, a[p]);
        f[y] += t1;
//        for(auto [id, w] : dp[y]) calc(y, id);
        for(auto [id, w] : dp[x]){
            dp[y][id] = max(calc(x, id) + t2, calc(y, id));

        }
         one[p] = y;
        for(auto [id, w] : dp[p]){
            dp[y][id] = max(calc(y, id), w + t1 + t2);
        }
        dp[y][a[p]] = t2 + t1;
        g[y][a[p]] = f[y];

    }
    else{
        int y;
        if(l < p)y = get(solve(l, p - 1));
        else y = get(solve(p + 1, r));
        int t1 = lmao(y, a[p]);
        one[p] = y;
        for(auto [id, w] : dp[p]){
            dp[y][id] = max(calc(y, id), w + t1);
        }
        dp[y][a[p]] = t1;
        g[y][a[p]] = f[y];
//        cout <<endl<< p << "#\n";
//        for(auto [id, w] : dp[y]) cout << id << ' ' << w << endl;
//
//        for(auto [id, w] : dp[y]){
//            calc(y, id);
//        }

    }
    return p;
}
main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
//    freopen("code.inp", "r", stdin);
//    freopen("code.out", "w", stdout);
    cin >> n;
    for(int i = 1; i <= n; ++i) cin >> a[i], rmq[i][0] = i;
    for(int j = 1; j <= lg; ++j){
        for(int i = 1; i + (1 << j) - 1 <= n; ++i){
            int x = rmq[i][j - 1], y = rmq[i + (1 << (j - 1))][j - 1];
            if(a[x] > a[y]) rmq[i][j] = x;
            else rmq[i][j] = y;
        }
    }
    cin >> m;
    ll sum = 0;
    for(int i = 1, u, v, w; i <= m; ++i){
        cin >> u >> v >> w;
        dp[u][v] = w;
        sum += w;
    }
    int p = get(solve(1, n));
    ll ans = 0;
    for(auto [id,w] : dp[p]) ans = max(ans, calc(p, id));
    cout << sum - ans;
}
/*
8
6 2 1 5 2 5 2 7
4
3 8 2
7 5 3
6 7 2
2 3 4

*/

Compilation message

constellation3.cpp:96:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   96 | main(){
      | ^~~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 19292 KB Output is correct
2 Correct 9 ms 19292 KB Output is correct
3 Correct 9 ms 19264 KB Output is correct
4 Correct 9 ms 19292 KB Output is correct
5 Correct 9 ms 19312 KB Output is correct
6 Correct 9 ms 19288 KB Output is correct
7 Correct 10 ms 19288 KB Output is correct
8 Correct 9 ms 19292 KB Output is correct
9 Correct 8 ms 19288 KB Output is correct
10 Correct 10 ms 19528 KB Output is correct
11 Correct 9 ms 19288 KB Output is correct
12 Correct 11 ms 19292 KB Output is correct
13 Correct 9 ms 19264 KB Output is correct
14 Correct 8 ms 19288 KB Output is correct
15 Correct 9 ms 19292 KB Output is correct
16 Correct 9 ms 19196 KB Output is correct
17 Correct 8 ms 19288 KB Output is correct
18 Correct 9 ms 19356 KB Output is correct
19 Correct 9 ms 19288 KB Output is correct
20 Correct 10 ms 19288 KB Output is correct
21 Correct 10 ms 19288 KB Output is correct
22 Correct 12 ms 19376 KB Output is correct

Subtask #2
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 19292 KB Output is correct
2 Correct 9 ms 19292 KB Output is correct
3 Correct 9 ms 19264 KB Output is correct
4 Correct 9 ms 19292 KB Output is correct
5 Correct 9 ms 19312 KB Output is correct
6 Correct 9 ms 19288 KB Output is correct
7 Correct 10 ms 19288 KB Output is correct
8 Correct 9 ms 19292 KB Output is correct
9 Correct 8 ms 19288 KB Output is correct
10 Correct 10 ms 19528 KB Output is correct
11 Correct 9 ms 19288 KB Output is correct
12 Correct 11 ms 19292 KB Output is correct
13 Correct 9 ms 19264 KB Output is correct
14 Correct 8 ms 19288 KB Output is correct
15 Correct 9 ms 19292 KB Output is correct
16 Correct 9 ms 19196 KB Output is correct
17 Correct 8 ms 19288 KB Output is correct
18 Correct 9 ms 19356 KB Output is correct
19 Correct 9 ms 19288 KB Output is correct
20 Correct 10 ms 19288 KB Output is correct
21 Correct 10 ms 19288 KB Output is correct
22 Correct 12 ms 19376 KB Output is correct
23 Correct 11 ms 19804 KB Output is correct
24 Correct 10 ms 19804 KB Output is correct
25 Correct 11 ms 19804 KB Output is correct
26 Correct 10 ms 20060 KB Output is correct
27 Correct 9 ms 19804 KB Output is correct
28 Correct 11 ms 19804 KB Output is correct
29 Correct 10 ms 19844 KB Output is correct
30 Correct 11 ms 20060 KB Output is correct
31 Correct 14 ms 19804 KB Output is correct
32 Correct 10 ms 20060 KB Output is correct
33 Correct 10 ms 20060 KB Output is correct
34 Correct 12 ms 20060 KB Output is correct
35 Correct 11 ms 20060 KB Output is correct
36 Correct 13 ms 20056 KB Output is correct
37 Correct 13 ms 20060 KB Output is correct
38 Correct 10 ms 20060 KB Output is correct
39 Correct 11 ms 19804 KB Output is correct
40 Correct 10 ms 20060 KB Output is correct
41 Correct 11 ms 19800 KB Output is correct
42 Correct 11 ms 19780 KB Output is correct
43 Correct 11 ms 20060 KB Output is correct
44 Correct 9 ms 19940 KB Output is correct

Subtask #3
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 19292 KB Output is correct
2 Correct 9 ms 19292 KB Output is correct
3 Correct 9 ms 19264 KB Output is correct
4 Correct 9 ms 19292 KB Output is correct
5 Correct 9 ms 19312 KB Output is correct
6 Correct 9 ms 19288 KB Output is correct
7 Correct 10 ms 19288 KB Output is correct
8 Correct 9 ms 19292 KB Output is correct
9 Correct 8 ms 19288 KB Output is correct
10 Correct 10 ms 19528 KB Output is correct
11 Correct 9 ms 19288 KB Output is correct
12 Correct 11 ms 19292 KB Output is correct
13 Correct 9 ms 19264 KB Output is correct
14 Correct 8 ms 19288 KB Output is correct
15 Correct 9 ms 19292 KB Output is correct
16 Correct 9 ms 19196 KB Output is correct
17 Correct 8 ms 19288 KB Output is correct
18 Correct 9 ms 19356 KB Output is correct
19 Correct 9 ms 19288 KB Output is correct
20 Correct 10 ms 19288 KB Output is correct
21 Correct 10 ms 19288 KB Output is correct
22 Correct 12 ms 19376 KB Output is correct
23 Correct 11 ms 19804 KB Output is correct
24 Correct 10 ms 19804 KB Output is correct
25 Correct 11 ms 19804 KB Output is correct
26 Correct 10 ms 20060 KB Output is correct
27 Correct 9 ms 19804 KB Output is correct
28 Correct 11 ms 19804 KB Output is correct
29 Correct 10 ms 19844 KB Output is correct
30 Correct 11 ms 20060 KB Output is correct
31 Correct 14 ms 19804 KB Output is correct
32 Correct 10 ms 20060 KB Output is correct
33 Correct 10 ms 20060 KB Output is correct
34 Correct 12 ms 20060 KB Output is correct
35 Correct 11 ms 20060 KB Output is correct
36 Correct 13 ms 20056 KB Output is correct
37 Correct 13 ms 20060 KB Output is correct
38 Correct 10 ms 20060 KB Output is correct
39 Correct 11 ms 19804 KB Output is correct
40 Correct 10 ms 20060 KB Output is correct
41 Correct 11 ms 19800 KB Output is correct
42 Correct 11 ms 19780 KB Output is correct
43 Correct 11 ms 20060 KB Output is correct
44 Correct 9 ms 19940 KB Output is correct
45 Correct 268 ms 99940 KB Output is correct
46 Correct 244 ms 98644 KB Output is correct
47 Correct 266 ms 99412 KB Output is correct
48 Correct 251 ms 98992 KB Output is correct
49 Correct 249 ms 97876 KB Output is correct
50 Correct 246 ms 97620 KB Output is correct
51 Correct 252 ms 98384 KB Output is correct
52 Correct 253 ms 99920 KB Output is correct
53 Correct 247 ms 98864 KB Output is correct
54 Correct 423 ms 110932 KB Output is correct
55 Correct 407 ms 108592 KB Output is correct
56 Correct 446 ms 109160 KB Output is correct
57 Correct 424 ms 109400 KB Output is correct
58 Correct 420 ms 108628 KB Output is correct
59 Correct 406 ms 108368 KB Output is correct
60 Correct 260 ms 119124 KB Output is correct
61 Correct 256 ms 98388 KB Output is correct
62 Correct 391 ms 110416 KB Output is correct
63 Correct 244 ms 91732 KB Output is correct
64 Correct 249 ms 96124 KB Output is correct
65 Correct 403 ms 110928 KB Output is correct
66 Correct 243 ms 92808 KB Output is correct