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답안 #962646

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
962646 2024-04-14T05:51:30 Z Cookie Worst Reporter 4 (JOI21_worst_reporter4) C++14
100 / 100
 301 ms 102272 KB 
#include<bits/stdc++.h>
#include<fstream>
using namespace std;
#define sz(a) (int)a.size()
#define ALL(v) v.begin(), v.end()
#define ALLR(v) v.rbegin(), v.rend()
#define ll long long
#define pb push_back
#define forr(i, a, b) for(int i = a; i < b; i++)
#define dorr(i, a, b) for(int i = a; i >= b; i--)
#define ld long double
#define vt vector
#include<fstream>
#define fi first
#define se second
#define pll pair<ll, ll>
#define pii pair<int, int>
#define mpp make_pair
const ld PI = 3.14159265359, prec = 1e-9;;
//using u128 = __uint128_t;
//const int x[4] = {1, 0, -1, 0};
//const int y[4] = {0, -1, 0, 1};
const ll mod = 1e9 + 7, pr = 31;
const int mxn = 2e5 + 5, mxq = 1e5 + 5, sq = 500, mxv = 5e4 + 1;
//const int base = (1 <<18);
const ll inf = 1e9 + 5, neg = -69420, inf2 = 1e14;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
// have fun!
int n;
vt<int>adj[mxn + 1];
ll to[mxn + 1], h[mxn + 1], c[mxn + 1];
bool cyc[mxn + 1];
bool vis[mxn + 1];
map<ll, ll>mp[mxn + 1], cost;
void dfs(int s, int pre){
    vis[s] = 1; 
    for(auto i: adj[s]){
        if(i != pre && (!s || !cyc[i])){
            
            dfs(i, s); 
            if(sz(mp[i]) > sz(mp[s])){
                swap(mp[s], mp[i]);
            }
            for(auto j: mp[i])mp[s][j.fi] += j.se;
        }
    }
    if(pre){
        mp[s][h[s]] += c[s];
        ll lft = c[s];
        while(1){
            auto it = mp[s].lower_bound(h[s]);
            if(it == mp[s].begin())break;
            --it;
            if((*it).se <= lft){
                lft -= (*it).se;  mp[s].erase(it);
            }else{
                (*it).se -= lft; break;
            }
        }
    }
}
void solve(){
    cin >> n;
    ll totc = 0;
    for(int i = 1; i <= n; i++){
        cin >> to[i] >> h[i] >> c[i]; 
        totc += c[i];
        adj[to[i]].pb(i);
    }
    ll res = 0;
    for(int i = 1; i <= n; i++){
        if(!vis[i]){
            int a = to[i], b = to[to[i]];
            while(a != b){
                a = to[a]; b = to[to[b]];
            }
            a = i;
            while(a != b){
                a = to[a]; b = to[b];
            }
            
            cyc[a] = 1; b = to[a]; 
            adj[0].clear(); mp[0].clear(); cost.clear(); adj[0].pb(a); cost[h[a]] += c[a];
            while(a != b){
                cyc[b] = 1; adj[0].pb(b); cost[h[b]] += c[b]; b = to[b];
            }
             dfs(0, -1);
            ll tot = 0, ans = 0;
            for(auto j: mp[0]){
                tot += j.se; mp[0][j.fi] = tot;
            }
            ans = tot;
            
            for(auto j: cost){
                auto it = mp[0].lower_bound(j.fi);
                if(it != mp[0].begin()){
                    --it;
                    ans = max(ans, tot + (j.se - (*it).se));
                }
            }
            
            res += ans;
        }
    }
    cout << totc - res;
}
signed main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    //freopen("DATA.inp", "r", stdin);
    //freopen("DATA.out", "w", stdout);
    int tt; tt = 1;
    while(tt--){
        solve();
 
    }
    return(0);
}

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 19544 KB Output is correct
2 Correct 4 ms 19548 KB Output is correct
3 Correct 5 ms 19548 KB Output is correct
4 Correct 5 ms 19548 KB Output is correct
5 Correct 8 ms 20572 KB Output is correct
6 Correct 7 ms 20196 KB Output is correct
7 Correct 6 ms 19804 KB Output is correct
8 Correct 8 ms 20572 KB Output is correct
9 Correct 8 ms 20000 KB Output is correct
10 Correct 6 ms 19804 KB Output is correct
11 Correct 6 ms 19804 KB Output is correct
12 Correct 7 ms 20572 KB Output is correct
13 Correct 8 ms 20572 KB Output is correct
14 Correct 6 ms 20060 KB Output is correct
15 Correct 6 ms 20236 KB Output is correct
16 Correct 9 ms 20828 KB Output is correct
17 Correct 8 ms 20316 KB Output is correct
18 Correct 5 ms 19800 KB Output is correct
19 Correct 8 ms 20456 KB Output is correct
20 Correct 7 ms 20060 KB Output is correct
21 Correct 6 ms 20060 KB Output is correct
22 Correct 7 ms 20256 KB Output is correct
23 Correct 5 ms 19804 KB Output is correct
24 Correct 7 ms 20428 KB Output is correct
25 Correct 6 ms 20316 KB Output is correct
26 Correct 6 ms 20420 KB Output is correct
27 Correct 8 ms 20316 KB Output is correct
28 Correct 7 ms 20568 KB Output is correct
29 Correct 7 ms 20572 KB Output is correct
30 Correct 8 ms 20624 KB Output is correct
31 Correct 7 ms 20572 KB Output is correct

Subtask #2
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 19544 KB Output is correct
2 Correct 4 ms 19548 KB Output is correct
3 Correct 5 ms 19548 KB Output is correct
4 Correct 5 ms 19548 KB Output is correct
5 Correct 8 ms 20572 KB Output is correct
6 Correct 7 ms 20196 KB Output is correct
7 Correct 6 ms 19804 KB Output is correct
8 Correct 8 ms 20572 KB Output is correct
9 Correct 8 ms 20000 KB Output is correct
10 Correct 6 ms 19804 KB Output is correct
11 Correct 6 ms 19804 KB Output is correct
12 Correct 7 ms 20572 KB Output is correct
13 Correct 8 ms 20572 KB Output is correct
14 Correct 6 ms 20060 KB Output is correct
15 Correct 6 ms 20236 KB Output is correct
16 Correct 9 ms 20828 KB Output is correct
17 Correct 8 ms 20316 KB Output is correct
18 Correct 5 ms 19800 KB Output is correct
19 Correct 8 ms 20456 KB Output is correct
20 Correct 7 ms 20060 KB Output is correct
21 Correct 6 ms 20060 KB Output is correct
22 Correct 7 ms 20256 KB Output is correct
23 Correct 5 ms 19804 KB Output is correct
24 Correct 7 ms 20428 KB Output is correct
25 Correct 6 ms 20316 KB Output is correct
26 Correct 6 ms 20420 KB Output is correct
27 Correct 8 ms 20316 KB Output is correct
28 Correct 7 ms 20568 KB Output is correct
29 Correct 7 ms 20572 KB Output is correct
30 Correct 8 ms 20624 KB Output is correct
31 Correct 7 ms 20572 KB Output is correct
32 Correct 8 ms 20572 KB Output is correct
33 Correct 301 ms 77244 KB Output is correct
34 Correct 213 ms 52356 KB Output is correct
35 Correct 296 ms 74268 KB Output is correct
36 Correct 193 ms 52316 KB Output is correct
37 Correct 129 ms 33460 KB Output is correct
38 Correct 122 ms 28876 KB Output is correct
39 Correct 128 ms 60360 KB Output is correct
40 Correct 115 ms 60472 KB Output is correct
41 Correct 84 ms 60324 KB Output is correct
42 Correct 115 ms 43088 KB Output is correct
43 Correct 106 ms 43092 KB Output is correct
44 Correct 272 ms 102272 KB Output is correct
45 Correct 178 ms 66384 KB Output is correct
46 Correct 71 ms 28960 KB Output is correct
47 Correct 173 ms 53212 KB Output is correct
48 Correct 93 ms 46196 KB Output is correct
49 Correct 83 ms 46160 KB Output is correct
50 Correct 240 ms 45264 KB Output is correct
51 Correct 76 ms 32964 KB Output is correct
52 Correct 199 ms 53580 KB Output is correct
53 Correct 88 ms 46540 KB Output is correct
54 Correct 89 ms 60248 KB Output is correct
55 Correct 156 ms 55700 KB Output is correct
56 Correct 140 ms 63060 KB Output is correct
57 Correct 126 ms 66644 KB Output is correct
58 Correct 144 ms 61804 KB Output is correct
59 Correct 150 ms 61896 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 19544 KB Output is correct
2 Correct 4 ms 19548 KB Output is correct
3 Correct 5 ms 19548 KB Output is correct
4 Correct 5 ms 19548 KB Output is correct
5 Correct 8 ms 20572 KB Output is correct
6 Correct 7 ms 20196 KB Output is correct
7 Correct 6 ms 19804 KB Output is correct
8 Correct 8 ms 20572 KB Output is correct
9 Correct 8 ms 20000 KB Output is correct
10 Correct 6 ms 19804 KB Output is correct
11 Correct 6 ms 19804 KB Output is correct
12 Correct 7 ms 20572 KB Output is correct
13 Correct 8 ms 20572 KB Output is correct
14 Correct 6 ms 20060 KB Output is correct
15 Correct 6 ms 20236 KB Output is correct
16 Correct 9 ms 20828 KB Output is correct
17 Correct 8 ms 20316 KB Output is correct
18 Correct 5 ms 19800 KB Output is correct
19 Correct 8 ms 20456 KB Output is correct
20 Correct 7 ms 20060 KB Output is correct
21 Correct 6 ms 20060 KB Output is correct
22 Correct 7 ms 20256 KB Output is correct
23 Correct 5 ms 19804 KB Output is correct
24 Correct 7 ms 20428 KB Output is correct
25 Correct 6 ms 20316 KB Output is correct
26 Correct 6 ms 20420 KB Output is correct
27 Correct 8 ms 20316 KB Output is correct
28 Correct 7 ms 20568 KB Output is correct
29 Correct 7 ms 20572 KB Output is correct
30 Correct 8 ms 20624 KB Output is correct
31 Correct 7 ms 20572 KB Output is correct
32 Correct 8 ms 20572 KB Output is correct
33 Correct 301 ms 77244 KB Output is correct
34 Correct 213 ms 52356 KB Output is correct
35 Correct 296 ms 74268 KB Output is correct
36 Correct 193 ms 52316 KB Output is correct
37 Correct 129 ms 33460 KB Output is correct
38 Correct 122 ms 28876 KB Output is correct
39 Correct 128 ms 60360 KB Output is correct
40 Correct 115 ms 60472 KB Output is correct
41 Correct 84 ms 60324 KB Output is correct
42 Correct 115 ms 43088 KB Output is correct
43 Correct 106 ms 43092 KB Output is correct
44 Correct 272 ms 102272 KB Output is correct
45 Correct 178 ms 66384 KB Output is correct
46 Correct 71 ms 28960 KB Output is correct
47 Correct 173 ms 53212 KB Output is correct
48 Correct 93 ms 46196 KB Output is correct
49 Correct 83 ms 46160 KB Output is correct
50 Correct 240 ms 45264 KB Output is correct
51 Correct 76 ms 32964 KB Output is correct
52 Correct 199 ms 53580 KB Output is correct
53 Correct 88 ms 46540 KB Output is correct
54 Correct 89 ms 60248 KB Output is correct
55 Correct 156 ms 55700 KB Output is correct
56 Correct 140 ms 63060 KB Output is correct
57 Correct 126 ms 66644 KB Output is correct
58 Correct 144 ms 61804 KB Output is correct
59 Correct 150 ms 61896 KB Output is correct
60 Correct 4 ms 19548 KB Output is correct
61 Correct 4 ms 19548 KB Output is correct
62 Correct 4 ms 19548 KB Output is correct
63 Correct 4 ms 19636 KB Output is correct
64 Correct 236 ms 66856 KB Output is correct
65 Correct 209 ms 50272 KB Output is correct
66 Correct 247 ms 62744 KB Output is correct
67 Correct 199 ms 50400 KB Output is correct
68 Correct 148 ms 36676 KB Output is correct
69 Correct 117 ms 33320 KB Output is correct
70 Correct 174 ms 40168 KB Output is correct
71 Correct 123 ms 31696 KB Output is correct
72 Correct 197 ms 44228 KB Output is correct
73 Correct 98 ms 32204 KB Output is correct
74 Correct 251 ms 47004 KB Output is correct
75 Correct 121 ms 34472 KB Output is correct
76 Correct 149 ms 34496 KB Output is correct
77 Correct 186 ms 47512 KB Output is correct
78 Correct 112 ms 35028 KB Output is correct
79 Correct 240 ms 62984 KB Output is correct
80 Correct 165 ms 45960 KB Output is correct
81 Correct 126 ms 35292 KB Output is correct
82 Correct 132 ms 44404 KB Output is correct
83 Correct 67 ms 31232 KB Output is correct
84 Correct 250 ms 53560 KB Output is correct
85 Correct 208 ms 53412 KB Output is correct
86 Correct 178 ms 50372 KB Output is correct
87 Correct 203 ms 53428 KB Output is correct
88 Correct 206 ms 53448 KB Output is correct