oj.uz

Submission #601553

# Submission time Handle Problem Language Result Execution time Memory
601553 2022-07-22T07:55:05 Z 장태환(#8473) Stranded Far From Home (BOI22_island) C++17
100 / 100
 297 ms 46812 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
vector<int>link[200100];
vector<pair<int,int>>x;
int uf[200100];
int sum[200100];
vector<int>poss[200100];
int f(int n)
{
    if(uf[n]==n)
        return n;
    return uf[n]=f(uf[n]);
}
void u(int n,int m)
{
    n=f(n);
    m=f(m);
    if(n==m)
        return;
    if(poss[n].size()<poss[m].size())
        swap(n,m);
    sum[n]+=sum[m];
    int i;
    for(i=0;i<poss[m].size();i++)
        poss[n].push_back(poss[m][i]);
    uf[m]=n;
}
vector<int>carry;
int arr[200100];
int ans[200100];
signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int N,M;
    cin >>N>>M;
    int i;
    for(i=0;i<N;i++)
        cin >>arr[i+1];
    for(i=0;i<M;i++)
    {
        int a,b;
        cin >>a>>b;
        link[a].push_back(b);
        link[b].push_back(a);
        x.push_back({a,b});
    }
    int summ=0;
    vector<pair<int,int>>t;
    for(i=0;i<N;i++)
    {
        summ+=arr[i+1];
        t.push_back({arr[i+1],i+1});
        carry.push_back(i+1);
    }
    memset(uf,-1,sizeof(uf));
    sort(t.begin(),t.end());
    for(i=0;i<t.size();i++)
    {
        uf[t[i].second]=t[i].second;
        sum[t[i].second]=t[i].first;
        poss[t[i].second].push_back(t[i].second);
        int j;
        for(j=0;j<link[t[i].second].size();j++)
        {
            if(uf[link[t[i].second][j]]>=0)
            {
                if(sum[f(link[t[i].second][j])]<t[i].first)
                {
                    poss[f(link[t[i].second][j])].clear();
                }
                u(t[i].second,f(link[t[i].second][j]));
            }
        }
    }
    for(i=0;i<poss[f(1)].size();i++)
    {
        ans[poss[f(1)][i]]=1;
    }
    for(i=1;i<=N;i++)
        cout <<ans[i];
}

Compilation message

island.cpp: In function 'void u(long long int, long long int)':
island.cpp:25:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |     for(i=0;i<poss[m].size();i++)
      |             ~^~~~~~~~~~~~~~~
island.cpp: In function 'int main()':
island.cpp:59:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |     for(i=0;i<t.size();i++)
      |             ~^~~~~~~~~
island.cpp:65:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |         for(j=0;j<link[t[i].second].size();j++)
      |                 ~^~~~~~~~~~~~~~~~~~~~~~~~~
island.cpp:77:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   77 |     for(i=0;i<poss[f(1)].size();i++)
      |             ~^~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 11212 KB Output is correct
2 Correct 6 ms 11264 KB Output is correct
3 Correct 6 ms 11220 KB Output is correct
4 Correct 8 ms 11572 KB Output is correct
5 Correct 7 ms 11604 KB Output is correct
6 Correct 8 ms 11452 KB Output is correct
7 Correct 8 ms 11476 KB Output is correct
8 Correct 7 ms 11452 KB Output is correct
9 Correct 9 ms 11604 KB Output is correct
10 Correct 8 ms 11604 KB Output is correct
11 Correct 8 ms 11536 KB Output is correct
12 Correct 8 ms 11660 KB Output is correct
13 Correct 7 ms 11540 KB Output is correct
14 Correct 7 ms 11528 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11264 KB Output is correct
2 Correct 5 ms 11220 KB Output is correct
3 Correct 163 ms 40212 KB Output is correct
4 Correct 192 ms 38200 KB Output is correct
5 Correct 224 ms 42844 KB Output is correct
6 Correct 210 ms 43884 KB Output is correct
7 Correct 212 ms 43956 KB Output is correct
8 Correct 215 ms 39780 KB Output is correct
9 Correct 167 ms 46544 KB Output is correct
10 Correct 154 ms 37284 KB Output is correct
11 Correct 171 ms 40392 KB Output is correct
12 Correct 212 ms 38680 KB Output is correct
13 Correct 176 ms 37296 KB Output is correct
14 Correct 154 ms 37432 KB Output is correct
15 Correct 152 ms 38772 KB Output is correct
16 Correct 132 ms 38472 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 11260 KB Output is correct
2 Correct 243 ms 44592 KB Output is correct
3 Correct 232 ms 44800 KB Output is correct
4 Correct 203 ms 38800 KB Output is correct
5 Correct 198 ms 37288 KB Output is correct
6 Correct 219 ms 44564 KB Output is correct
7 Correct 164 ms 38776 KB Output is correct
8 Correct 205 ms 38892 KB Output is correct
9 Correct 104 ms 38500 KB Output is correct
10 Correct 152 ms 38044 KB Output is correct
11 Correct 198 ms 37848 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 11264 KB Output is correct
2 Correct 238 ms 40972 KB Output is correct
3 Correct 238 ms 42100 KB Output is correct
4 Correct 258 ms 44224 KB Output is correct
5 Correct 237 ms 46376 KB Output is correct
6 Correct 211 ms 41656 KB Output is correct
7 Correct 167 ms 40428 KB Output is correct
8 Correct 103 ms 39536 KB Output is correct
9 Correct 144 ms 29688 KB Output is correct
10 Correct 284 ms 46812 KB Output is correct
11 Correct 182 ms 37792 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 11212 KB Output is correct
2 Correct 6 ms 11264 KB Output is correct
3 Correct 6 ms 11220 KB Output is correct
4 Correct 8 ms 11572 KB Output is correct
5 Correct 7 ms 11604 KB Output is correct
6 Correct 8 ms 11452 KB Output is correct
7 Correct 8 ms 11476 KB Output is correct
8 Correct 7 ms 11452 KB Output is correct
9 Correct 9 ms 11604 KB Output is correct
10 Correct 8 ms 11604 KB Output is correct
11 Correct 8 ms 11536 KB Output is correct
12 Correct 8 ms 11660 KB Output is correct
13 Correct 7 ms 11540 KB Output is correct
14 Correct 7 ms 11528 KB Output is correct
15 Correct 5 ms 11264 KB Output is correct
16 Correct 5 ms 11220 KB Output is correct
17 Correct 163 ms 40212 KB Output is correct
18 Correct 192 ms 38200 KB Output is correct
19 Correct 224 ms 42844 KB Output is correct
20 Correct 210 ms 43884 KB Output is correct
21 Correct 212 ms 43956 KB Output is correct
22 Correct 215 ms 39780 KB Output is correct
23 Correct 167 ms 46544 KB Output is correct
24 Correct 154 ms 37284 KB Output is correct
25 Correct 171 ms 40392 KB Output is correct
26 Correct 212 ms 38680 KB Output is correct
27 Correct 176 ms 37296 KB Output is correct
28 Correct 154 ms 37432 KB Output is correct
29 Correct 152 ms 38772 KB Output is correct
30 Correct 132 ms 38472 KB Output is correct
31 Correct 6 ms 11260 KB Output is correct
32 Correct 243 ms 44592 KB Output is correct
33 Correct 232 ms 44800 KB Output is correct
34 Correct 203 ms 38800 KB Output is correct
35 Correct 198 ms 37288 KB Output is correct
36 Correct 219 ms 44564 KB Output is correct
37 Correct 164 ms 38776 KB Output is correct
38 Correct 205 ms 38892 KB Output is correct
39 Correct 104 ms 38500 KB Output is correct
40 Correct 152 ms 38044 KB Output is correct
41 Correct 198 ms 37848 KB Output is correct
42 Correct 7 ms 11264 KB Output is correct
43 Correct 238 ms 40972 KB Output is correct
44 Correct 238 ms 42100 KB Output is correct
45 Correct 258 ms 44224 KB Output is correct
46 Correct 237 ms 46376 KB Output is correct
47 Correct 211 ms 41656 KB Output is correct
48 Correct 167 ms 40428 KB Output is correct
49 Correct 103 ms 39536 KB Output is correct
50 Correct 144 ms 29688 KB Output is correct
51 Correct 284 ms 46812 KB Output is correct
52 Correct 182 ms 37792 KB Output is correct
53 Correct 7 ms 11264 KB Output is correct
54 Correct 6 ms 11220 KB Output is correct
55 Correct 7 ms 11220 KB Output is correct
56 Correct 7 ms 11476 KB Output is correct
57 Correct 8 ms 11528 KB Output is correct
58 Correct 7 ms 11532 KB Output is correct
59 Correct 7 ms 11476 KB Output is correct
60 Correct 6 ms 11484 KB Output is correct
61 Correct 7 ms 11604 KB Output is correct
62 Correct 7 ms 11604 KB Output is correct
63 Correct 7 ms 11576 KB Output is correct
64 Correct 7 ms 11604 KB Output is correct
65 Correct 9 ms 11476 KB Output is correct
66 Correct 9 ms 11524 KB Output is correct
67 Correct 180 ms 40256 KB Output is correct
68 Correct 167 ms 38284 KB Output is correct
69 Correct 211 ms 42776 KB Output is correct
70 Correct 231 ms 43848 KB Output is correct
71 Correct 207 ms 43860 KB Output is correct
72 Correct 205 ms 39788 KB Output is correct
73 Correct 196 ms 46524 KB Output is correct
74 Correct 142 ms 37216 KB Output is correct
75 Correct 154 ms 40388 KB Output is correct
76 Correct 208 ms 38712 KB Output is correct
77 Correct 148 ms 37184 KB Output is correct
78 Correct 151 ms 37460 KB Output is correct
79 Correct 180 ms 38752 KB Output is correct
80 Correct 105 ms 38512 KB Output is correct
81 Correct 247 ms 44656 KB Output is correct
82 Correct 249 ms 44908 KB Output is correct
83 Correct 199 ms 38588 KB Output is correct
84 Correct 147 ms 37300 KB Output is correct
85 Correct 271 ms 44468 KB Output is correct
86 Correct 197 ms 38856 KB Output is correct
87 Correct 181 ms 38768 KB Output is correct
88 Correct 164 ms 37976 KB Output is correct
89 Correct 186 ms 37840 KB Output is correct
90 Correct 242 ms 41004 KB Output is correct
91 Correct 276 ms 42016 KB Output is correct
92 Correct 260 ms 44384 KB Output is correct
93 Correct 226 ms 46580 KB Output is correct
94 Correct 254 ms 41676 KB Output is correct
95 Correct 185 ms 40420 KB Output is correct
96 Correct 119 ms 39648 KB Output is correct
97 Correct 151 ms 29668 KB Output is correct
98 Correct 217 ms 46796 KB Output is correct
99 Correct 219 ms 37756 KB Output is correct
100 Correct 56 ms 19376 KB Output is correct
101 Correct 297 ms 42752 KB Output is correct
102 Correct 222 ms 36956 KB Output is correct
103 Correct 226 ms 36240 KB Output is correct
104 Correct 292 ms 40052 KB Output is correct