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Submission #599571

# Submission time Handle Problem Language Result Execution time Memory
599571 2022-07-19T15:38:40 Z alexander707070 Stranded Far From Home (BOI22_island) C++14
100 / 100
 260 ms 32168 KB 
#include<bits/stdc++.h>
#define MAXN 200007
using namespace std;

int n,m,a,b,curr;
long long s[MAXN];
vector<int> v[MAXN];
int p[MAXN],dsu[MAXN];
long long sz[MAXN];
vector<int> can[MAXN];
bool in[MAXN],notok[MAXN];

bool cmp(int x,int y){
    return s[x]<s[y];
}

int root(int x){
    if(dsu[x]==x)return dsu[x];
    dsu[x]=root(dsu[x]);
    return dsu[x];
}

int main(){

    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin>>n>>m;
    for(int i=1;i<=n;i++){
        cin>>s[i];
        p[i]=i; dsu[i]=i;
        sz[i]=s[i]; can[i]={i};
    }
    sort(p+1,p+n+1,cmp);

    for(int i=1;i<=m;i++){
        cin>>a>>b;
        v[a].push_back(b);
        v[b].push_back(a);
    }

    for(int i=1;i<=n;i++){
        curr=p[i];
        for(int f:v[curr]){
            if(!in[f] or root(curr)==root(f))continue;
            if(sz[root(f)]<s[curr]){
                for(int k:can[root(f)])notok[k]=true;
                can[root(f)].clear();
            }
            if(can[root(f)].size()<can[root(curr)].size()){
                for(int k:can[root(f)])can[root(curr)].push_back(k);
                sz[root(curr)]+=sz[root(f)];
                dsu[root(f)]=root(curr);
            }else{
                for(int k:can[root(curr)])can[root(f)].push_back(k);
                sz[root(f)]+=sz[root(curr)];
                dsu[root(curr)]=root(f);
            }
        }
        in[curr]=true;
    }

    for(int i=1;i<=n;i++){
        if(notok[i])cout<<0;
        else cout<<1;
    }
    cout<<"\n";
 
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 9 ms 9812 KB Output is correct
5 Correct 7 ms 9940 KB Output is correct
6 Correct 8 ms 9812 KB Output is correct
7 Correct 7 ms 9812 KB Output is correct
8 Correct 8 ms 9864 KB Output is correct
9 Correct 6 ms 9940 KB Output is correct
10 Correct 6 ms 9940 KB Output is correct
11 Correct 7 ms 9912 KB Output is correct
12 Correct 6 ms 9940 KB Output is correct
13 Correct 6 ms 9868 KB Output is correct
14 Correct 6 ms 9940 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 9684 KB Output is correct
2 Correct 6 ms 9684 KB Output is correct
3 Correct 161 ms 28588 KB Output is correct
4 Correct 159 ms 31416 KB Output is correct
5 Correct 193 ms 29720 KB Output is correct
6 Correct 226 ms 30476 KB Output is correct
7 Correct 181 ms 30288 KB Output is correct
8 Correct 180 ms 29488 KB Output is correct
9 Correct 180 ms 31552 KB Output is correct
10 Correct 160 ms 28188 KB Output is correct
11 Correct 116 ms 29352 KB Output is correct
12 Correct 172 ms 29196 KB Output is correct
13 Correct 172 ms 31884 KB Output is correct
14 Correct 169 ms 31552 KB Output is correct
15 Correct 143 ms 28188 KB Output is correct
16 Correct 96 ms 28048 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 226 ms 31036 KB Output is correct
3 Correct 255 ms 31140 KB Output is correct
4 Correct 155 ms 31856 KB Output is correct
5 Correct 156 ms 31844 KB Output is correct
6 Correct 244 ms 31284 KB Output is correct
7 Correct 166 ms 28152 KB Output is correct
8 Correct 161 ms 28228 KB Output is correct
9 Correct 95 ms 27972 KB Output is correct
10 Correct 153 ms 29420 KB Output is correct
11 Correct 193 ms 30764 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 209 ms 29008 KB Output is correct
3 Correct 226 ms 29528 KB Output is correct
4 Correct 260 ms 30260 KB Output is correct
5 Correct 188 ms 30996 KB Output is correct
6 Correct 170 ms 28612 KB Output is correct
7 Correct 127 ms 29336 KB Output is correct
8 Correct 116 ms 30096 KB Output is correct
9 Correct 108 ms 20332 KB Output is correct
10 Correct 184 ms 32040 KB Output is correct
11 Correct 181 ms 31000 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 9 ms 9812 KB Output is correct
5 Correct 7 ms 9940 KB Output is correct
6 Correct 8 ms 9812 KB Output is correct
7 Correct 7 ms 9812 KB Output is correct
8 Correct 8 ms 9864 KB Output is correct
9 Correct 6 ms 9940 KB Output is correct
10 Correct 6 ms 9940 KB Output is correct
11 Correct 7 ms 9912 KB Output is correct
12 Correct 6 ms 9940 KB Output is correct
13 Correct 6 ms 9868 KB Output is correct
14 Correct 6 ms 9940 KB Output is correct
15 Correct 8 ms 9684 KB Output is correct
16 Correct 6 ms 9684 KB Output is correct
17 Correct 161 ms 28588 KB Output is correct
18 Correct 159 ms 31416 KB Output is correct
19 Correct 193 ms 29720 KB Output is correct
20 Correct 226 ms 30476 KB Output is correct
21 Correct 181 ms 30288 KB Output is correct
22 Correct 180 ms 29488 KB Output is correct
23 Correct 180 ms 31552 KB Output is correct
24 Correct 160 ms 28188 KB Output is correct
25 Correct 116 ms 29352 KB Output is correct
26 Correct 172 ms 29196 KB Output is correct
27 Correct 172 ms 31884 KB Output is correct
28 Correct 169 ms 31552 KB Output is correct
29 Correct 143 ms 28188 KB Output is correct
30 Correct 96 ms 28048 KB Output is correct
31 Correct 5 ms 9684 KB Output is correct
32 Correct 226 ms 31036 KB Output is correct
33 Correct 255 ms 31140 KB Output is correct
34 Correct 155 ms 31856 KB Output is correct
35 Correct 156 ms 31844 KB Output is correct
36 Correct 244 ms 31284 KB Output is correct
37 Correct 166 ms 28152 KB Output is correct
38 Correct 161 ms 28228 KB Output is correct
39 Correct 95 ms 27972 KB Output is correct
40 Correct 153 ms 29420 KB Output is correct
41 Correct 193 ms 30764 KB Output is correct
42 Correct 5 ms 9684 KB Output is correct
43 Correct 209 ms 29008 KB Output is correct
44 Correct 226 ms 29528 KB Output is correct
45 Correct 260 ms 30260 KB Output is correct
46 Correct 188 ms 30996 KB Output is correct
47 Correct 170 ms 28612 KB Output is correct
48 Correct 127 ms 29336 KB Output is correct
49 Correct 116 ms 30096 KB Output is correct
50 Correct 108 ms 20332 KB Output is correct
51 Correct 184 ms 32040 KB Output is correct
52 Correct 181 ms 31000 KB Output is correct
53 Correct 5 ms 9684 KB Output is correct
54 Correct 5 ms 9624 KB Output is correct
55 Correct 5 ms 9732 KB Output is correct
56 Correct 6 ms 9812 KB Output is correct
57 Correct 6 ms 9940 KB Output is correct
58 Correct 7 ms 9812 KB Output is correct
59 Correct 6 ms 9812 KB Output is correct
60 Correct 6 ms 9812 KB Output is correct
61 Correct 6 ms 9812 KB Output is correct
62 Correct 7 ms 9940 KB Output is correct
63 Correct 7 ms 9932 KB Output is correct
64 Correct 7 ms 9940 KB Output is correct
65 Correct 7 ms 9960 KB Output is correct
66 Correct 6 ms 9940 KB Output is correct
67 Correct 157 ms 28540 KB Output is correct
68 Correct 152 ms 31364 KB Output is correct
69 Correct 202 ms 29780 KB Output is correct
70 Correct 211 ms 30532 KB Output is correct
71 Correct 191 ms 30456 KB Output is correct
72 Correct 187 ms 29436 KB Output is correct
73 Correct 158 ms 31472 KB Output is correct
74 Correct 156 ms 28212 KB Output is correct
75 Correct 119 ms 29392 KB Output is correct
76 Correct 193 ms 29156 KB Output is correct
77 Correct 159 ms 31964 KB Output is correct
78 Correct 157 ms 31452 KB Output is correct
79 Correct 142 ms 28228 KB Output is correct
80 Correct 101 ms 28060 KB Output is correct
81 Correct 226 ms 31072 KB Output is correct
82 Correct 216 ms 31132 KB Output is correct
83 Correct 178 ms 31824 KB Output is correct
84 Correct 150 ms 31804 KB Output is correct
85 Correct 214 ms 31168 KB Output is correct
86 Correct 171 ms 28276 KB Output is correct
87 Correct 165 ms 28212 KB Output is correct
88 Correct 149 ms 29500 KB Output is correct
89 Correct 167 ms 30804 KB Output is correct
90 Correct 229 ms 28920 KB Output is correct
91 Correct 212 ms 29548 KB Output is correct
92 Correct 216 ms 30312 KB Output is correct
93 Correct 260 ms 31040 KB Output is correct
94 Correct 170 ms 28628 KB Output is correct
95 Correct 124 ms 29360 KB Output is correct
96 Correct 112 ms 30024 KB Output is correct
97 Correct 105 ms 20328 KB Output is correct
98 Correct 222 ms 32168 KB Output is correct
99 Correct 169 ms 30960 KB Output is correct
100 Correct 40 ms 12252 KB Output is correct
101 Correct 236 ms 29636 KB Output is correct
102 Correct 170 ms 25044 KB Output is correct
103 Correct 182 ms 25372 KB Output is correct
104 Correct 223 ms 28436 KB Output is correct