oj.uz

Submission #652050

# Submission time Handle Problem Language Result Execution time Memory
652050 2022-10-21T08:10:04 Z Vladth11 Stranded Far From Home (BOI22_island) C++14
100 / 100
 524 ms 32372 KB 
#include <bits/stdc++.h>
#define debug(x) cerr << #x << " " << x << "\n"
 
using namespace std;
 
const int NMAX = 200001;
 
class DSU{
public:
    int parent[NMAX], cnt[NMAX];
    long long suma[NMAX];
    vector <int> comp[NMAX];
    int root(int x){
        if(x == parent[x])
            return x;
        return parent[x] = root(parent[x]);
    }
    void merge(int a, int b){
        a = root(a);
        b = root(b);
        if(a == b)
            return;
        if(cnt[a] < cnt[b])
            swap(a, b);
        cnt[a] += cnt[b];
        parent[b] = a;
        suma[a] += suma[b];
        for(auto x : comp[b])
            comp[a].push_back(x);
        comp[b].clear();
    }
}dsu;
 
vector <int> v[NMAX];
 
 
int rez[NMAX];
int p[NMAX];
int idx[NMAX];
 
bool cmp(int a, int b){
    return p[a] < p[b];
}
 
int main()
{
    int n, m, i;
    cin >> n >> m;
    for(i = 1; i <= n; i++){
        cin >> p[i];
        rez[i] = 1;
        dsu.parent[i] = i;
        dsu.cnt[i] = 1;
        dsu.suma[i] = p[i];
        dsu.comp[i].clear();
        dsu.comp[i].push_back(i);
        idx[i] = i;
    }
    for(i = 1; i <= m; i++){
        int a, b;
        cin >> a >> b;
        v[a].push_back(b);
        v[b].push_back(a);
    }
    sort(idx + 1, idx + n + 1, cmp);
    for(i = 1; i <= n; i++){
        int x = idx[i];
        for(auto vecin : v[x]){
            if(p[vecin] < p[x]){
                int rV = dsu.root(vecin);
                if(dsu.suma[rV] < p[x]){
                    for(auto y : dsu.comp[rV]){
                        rez[y] = 0;
                    }
                    dsu.comp[rV].clear();
                }
            }
            if(p[vecin] <= p[x]){
                dsu.merge(x, vecin);
            }
        }
    }
    for(i = 1; i <= n; i++){
        cout << rez[i];
    }
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 7 ms 9760 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 8 ms 9812 KB Output is correct
5 Correct 7 ms 9812 KB Output is correct
6 Correct 8 ms 9812 KB Output is correct
7 Correct 8 ms 9824 KB Output is correct
8 Correct 8 ms 9796 KB Output is correct
9 Correct 6 ms 9812 KB Output is correct
10 Correct 7 ms 9940 KB Output is correct
11 Correct 7 ms 9940 KB Output is correct
12 Correct 8 ms 9940 KB Output is correct
13 Correct 8 ms 9940 KB Output is correct
14 Correct 8 ms 9812 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9684 KB Output is correct
2 Correct 5 ms 9656 KB Output is correct
3 Correct 291 ms 28884 KB Output is correct
4 Correct 262 ms 31692 KB Output is correct
5 Correct 337 ms 30132 KB Output is correct
6 Correct 379 ms 30704 KB Output is correct
7 Correct 359 ms 30756 KB Output is correct
8 Correct 423 ms 30400 KB Output is correct
9 Correct 326 ms 32096 KB Output is correct
10 Correct 301 ms 28692 KB Output is correct
11 Correct 231 ms 30012 KB Output is correct
12 Correct 345 ms 29584 KB Output is correct
13 Correct 276 ms 32252 KB Output is correct
14 Correct 285 ms 31752 KB Output is correct
15 Correct 291 ms 28760 KB Output is correct
16 Correct 227 ms 28600 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 392 ms 31468 KB Output is correct
3 Correct 376 ms 31620 KB Output is correct
4 Correct 321 ms 32292 KB Output is correct
5 Correct 275 ms 32360 KB Output is correct
6 Correct 381 ms 31616 KB Output is correct
7 Correct 315 ms 28896 KB Output is correct
8 Correct 332 ms 28872 KB Output is correct
9 Correct 233 ms 28644 KB Output is correct
10 Correct 315 ms 29800 KB Output is correct
11 Correct 311 ms 31100 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 434 ms 29288 KB Output is correct
3 Correct 367 ms 29688 KB Output is correct
4 Correct 424 ms 30656 KB Output is correct
5 Correct 437 ms 31588 KB Output is correct
6 Correct 366 ms 29252 KB Output is correct
7 Correct 294 ms 29944 KB Output is correct
8 Correct 234 ms 29972 KB Output is correct
9 Correct 233 ms 20344 KB Output is correct
10 Correct 351 ms 32188 KB Output is correct
11 Correct 333 ms 31264 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 7 ms 9760 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 8 ms 9812 KB Output is correct
5 Correct 7 ms 9812 KB Output is correct
6 Correct 8 ms 9812 KB Output is correct
7 Correct 8 ms 9824 KB Output is correct
8 Correct 8 ms 9796 KB Output is correct
9 Correct 6 ms 9812 KB Output is correct
10 Correct 7 ms 9940 KB Output is correct
11 Correct 7 ms 9940 KB Output is correct
12 Correct 8 ms 9940 KB Output is correct
13 Correct 8 ms 9940 KB Output is correct
14 Correct 8 ms 9812 KB Output is correct
15 Correct 6 ms 9684 KB Output is correct
16 Correct 5 ms 9656 KB Output is correct
17 Correct 291 ms 28884 KB Output is correct
18 Correct 262 ms 31692 KB Output is correct
19 Correct 337 ms 30132 KB Output is correct
20 Correct 379 ms 30704 KB Output is correct
21 Correct 359 ms 30756 KB Output is correct
22 Correct 423 ms 30400 KB Output is correct
23 Correct 326 ms 32096 KB Output is correct
24 Correct 301 ms 28692 KB Output is correct
25 Correct 231 ms 30012 KB Output is correct
26 Correct 345 ms 29584 KB Output is correct
27 Correct 276 ms 32252 KB Output is correct
28 Correct 285 ms 31752 KB Output is correct
29 Correct 291 ms 28760 KB Output is correct
30 Correct 227 ms 28600 KB Output is correct
31 Correct 5 ms 9684 KB Output is correct
32 Correct 392 ms 31468 KB Output is correct
33 Correct 376 ms 31620 KB Output is correct
34 Correct 321 ms 32292 KB Output is correct
35 Correct 275 ms 32360 KB Output is correct
36 Correct 381 ms 31616 KB Output is correct
37 Correct 315 ms 28896 KB Output is correct
38 Correct 332 ms 28872 KB Output is correct
39 Correct 233 ms 28644 KB Output is correct
40 Correct 315 ms 29800 KB Output is correct
41 Correct 311 ms 31100 KB Output is correct
42 Correct 5 ms 9684 KB Output is correct
43 Correct 434 ms 29288 KB Output is correct
44 Correct 367 ms 29688 KB Output is correct
45 Correct 424 ms 30656 KB Output is correct
46 Correct 437 ms 31588 KB Output is correct
47 Correct 366 ms 29252 KB Output is correct
48 Correct 294 ms 29944 KB Output is correct
49 Correct 234 ms 29972 KB Output is correct
50 Correct 233 ms 20344 KB Output is correct
51 Correct 351 ms 32188 KB Output is correct
52 Correct 333 ms 31264 KB Output is correct
53 Correct 6 ms 9664 KB Output is correct
54 Correct 5 ms 9684 KB Output is correct
55 Correct 6 ms 9732 KB Output is correct
56 Correct 10 ms 9812 KB Output is correct
57 Correct 9 ms 9812 KB Output is correct
58 Correct 8 ms 9832 KB Output is correct
59 Correct 8 ms 9832 KB Output is correct
60 Correct 8 ms 9812 KB Output is correct
61 Correct 7 ms 9812 KB Output is correct
62 Correct 8 ms 9940 KB Output is correct
63 Correct 11 ms 9940 KB Output is correct
64 Correct 8 ms 9896 KB Output is correct
65 Correct 9 ms 9812 KB Output is correct
66 Correct 10 ms 9812 KB Output is correct
67 Correct 364 ms 28876 KB Output is correct
68 Correct 327 ms 31832 KB Output is correct
69 Correct 388 ms 30112 KB Output is correct
70 Correct 435 ms 30856 KB Output is correct
71 Correct 388 ms 30808 KB Output is correct
72 Correct 389 ms 30468 KB Output is correct
73 Correct 332 ms 31932 KB Output is correct
74 Correct 299 ms 28692 KB Output is correct
75 Correct 274 ms 29892 KB Output is correct
76 Correct 377 ms 29728 KB Output is correct
77 Correct 330 ms 32328 KB Output is correct
78 Correct 316 ms 31768 KB Output is correct
79 Correct 329 ms 28840 KB Output is correct
80 Correct 270 ms 28632 KB Output is correct
81 Correct 443 ms 31552 KB Output is correct
82 Correct 425 ms 31612 KB Output is correct
83 Correct 381 ms 32256 KB Output is correct
84 Correct 347 ms 32372 KB Output is correct
85 Correct 439 ms 31604 KB Output is correct
86 Correct 384 ms 28788 KB Output is correct
87 Correct 390 ms 28904 KB Output is correct
88 Correct 346 ms 30036 KB Output is correct
89 Correct 384 ms 31316 KB Output is correct
90 Correct 450 ms 29476 KB Output is correct
91 Correct 524 ms 29876 KB Output is correct
92 Correct 478 ms 30728 KB Output is correct
93 Correct 461 ms 31656 KB Output is correct
94 Correct 456 ms 29384 KB Output is correct
95 Correct 328 ms 30188 KB Output is correct
96 Correct 322 ms 30140 KB Output is correct
97 Correct 280 ms 20476 KB Output is correct
98 Correct 353 ms 32304 KB Output is correct
99 Correct 329 ms 31496 KB Output is correct
100 Correct 114 ms 12392 KB Output is correct
101 Correct 454 ms 30172 KB Output is correct
102 Correct 329 ms 25800 KB Output is correct
103 Correct 376 ms 25908 KB Output is correct
104 Correct 445 ms 28868 KB Output is correct