oj.uz

Submission #711162

# Submission time Handle Problem Language Result Execution time Memory
711162 2023-03-16T09:00:34 Z rrrr10000 Stranded Far From Home (BOI22_island) C++14
100 / 100
 344 ms 31620 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<ll> vi;
typedef vector<vi> vvi;
typedef pair<ll,ll> P;
typedef tuple<ll,ll,ll> PP;
typedef vector<P> vp;
typedef vector<vp> vvp;
#define rep(i,n) for(ll i=0;i<(ll)(n);i++)
#define REP(i,k,n) for(ll i=(ll)(k);i<(ll)(n);i++)
#define all(a) a.begin(),a.end()
#define fi first
#define se second
#define pb emplace_back
template<class T> void out(T a){cout<<a<<endl;}
template<class T> void outv(T v){rep(i,v.size()){if(i)cout<<' ';cout<<v[i];}cout<<endl;}
template<class T> void outvv(T v){for(auto x:v)outv(x);}
template<class T> void outvp(T v){rep(i,v.size()){cout<<'('<<v[i].fi<<','<<v[i].se<<')';}cout<<endl;}
template<class T> void outvvp(T v){for(auto x:v)outvp(x);}
struct UF{
    vi par;
    UF(ll n):par(n,-1){}
    ll root(ll i){
        if(par[i]==-1)return i;
        par[i]=root(par[i]);
        return par[i];
    }
};
int main(){
    ll n,m;cin>>n>>m;
    vi v(n);rep(i,n)cin>>v[i];
    vector<PP> srt(m);
    rep(i,m){
        ll a,b;cin>>a>>b;a--;b--;
        if(P(v[a],a)<P(v[b],b))swap(a,b);
        srt[i]=PP(v[a],a,b);
    }
    sort(all(srt));
    UF uf(n);
    vvi ch(n);
    for(auto x:srt){
        ll t,a,b;tie(t,a,b)=x;
        b=uf.root(b);
        if(a==b)continue;
        ch[a].pb(b);
        uf.par[b]=a;
    }
    ll rt=uf.root(0);
    vi sub(n);
    auto dfs=[&](auto && self,ll i) -> void {
        sub[i]=v[i];
        for(ll x:ch[i]){
            self(self,x);
            sub[i]+=sub[x];
        }
    };dfs(dfs,rt);
    string ans(n,'0');
    auto dfs2=[&](auto && self,ll i) -> void {
        ans[i]='1';
        for(ll x:ch[i])if(sub[x]>=v[i]){
            self(self,x);
        }
    };dfs2(dfs2,rt);
    out(ans);
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 3 ms 468 KB Output is correct
6 Correct 3 ms 468 KB Output is correct
7 Correct 2 ms 468 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 2 ms 468 KB Output is correct
10 Correct 3 ms 468 KB Output is correct
11 Correct 3 ms 468 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 2 ms 468 KB Output is correct
14 Correct 2 ms 468 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 222 ms 21700 KB Output is correct
4 Correct 174 ms 26524 KB Output is correct
5 Correct 252 ms 18508 KB Output is correct
6 Correct 271 ms 19080 KB Output is correct
7 Correct 273 ms 19268 KB Output is correct
8 Correct 235 ms 27028 KB Output is correct
9 Correct 203 ms 17976 KB Output is correct
10 Correct 182 ms 16444 KB Output is correct
11 Correct 182 ms 27028 KB Output is correct
12 Correct 229 ms 21276 KB Output is correct
13 Correct 203 ms 27144 KB Output is correct
14 Correct 177 ms 26516 KB Output is correct
15 Correct 227 ms 27148 KB Output is correct
16 Correct 174 ms 26956 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 241 ms 18928 KB Output is correct
3 Correct 236 ms 19092 KB Output is correct
4 Correct 221 ms 27068 KB Output is correct
5 Correct 164 ms 25168 KB Output is correct
6 Correct 248 ms 19096 KB Output is correct
7 Correct 223 ms 27064 KB Output is correct
8 Correct 233 ms 31516 KB Output is correct
9 Correct 176 ms 30508 KB Output is correct
10 Correct 203 ms 24796 KB Output is correct
11 Correct 178 ms 23244 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 284 ms 19524 KB Output is correct
3 Correct 265 ms 19268 KB Output is correct
4 Correct 266 ms 19224 KB Output is correct
5 Correct 344 ms 19400 KB Output is correct
6 Correct 247 ms 19148 KB Output is correct
7 Correct 219 ms 22300 KB Output is correct
8 Correct 185 ms 27076 KB Output is correct
9 Correct 156 ms 12808 KB Output is correct
10 Correct 210 ms 19220 KB Output is correct
11 Correct 182 ms 20248 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 3 ms 468 KB Output is correct
6 Correct 3 ms 468 KB Output is correct
7 Correct 2 ms 468 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 2 ms 468 KB Output is correct
10 Correct 3 ms 468 KB Output is correct
11 Correct 3 ms 468 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 2 ms 468 KB Output is correct
14 Correct 2 ms 468 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 222 ms 21700 KB Output is correct
18 Correct 174 ms 26524 KB Output is correct
19 Correct 252 ms 18508 KB Output is correct
20 Correct 271 ms 19080 KB Output is correct
21 Correct 273 ms 19268 KB Output is correct
22 Correct 235 ms 27028 KB Output is correct
23 Correct 203 ms 17976 KB Output is correct
24 Correct 182 ms 16444 KB Output is correct
25 Correct 182 ms 27028 KB Output is correct
26 Correct 229 ms 21276 KB Output is correct
27 Correct 203 ms 27144 KB Output is correct
28 Correct 177 ms 26516 KB Output is correct
29 Correct 227 ms 27148 KB Output is correct
30 Correct 174 ms 26956 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 241 ms 18928 KB Output is correct
33 Correct 236 ms 19092 KB Output is correct
34 Correct 221 ms 27068 KB Output is correct
35 Correct 164 ms 25168 KB Output is correct
36 Correct 248 ms 19096 KB Output is correct
37 Correct 223 ms 27064 KB Output is correct
38 Correct 233 ms 31516 KB Output is correct
39 Correct 176 ms 30508 KB Output is correct
40 Correct 203 ms 24796 KB Output is correct
41 Correct 178 ms 23244 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 284 ms 19524 KB Output is correct
44 Correct 265 ms 19268 KB Output is correct
45 Correct 266 ms 19224 KB Output is correct
46 Correct 344 ms 19400 KB Output is correct
47 Correct 247 ms 19148 KB Output is correct
48 Correct 219 ms 22300 KB Output is correct
49 Correct 185 ms 27076 KB Output is correct
50 Correct 156 ms 12808 KB Output is correct
51 Correct 210 ms 19220 KB Output is correct
52 Correct 182 ms 20248 KB Output is correct
53 Correct 1 ms 304 KB Output is correct
54 Correct 0 ms 212 KB Output is correct
55 Correct 0 ms 212 KB Output is correct
56 Correct 2 ms 468 KB Output is correct
57 Correct 3 ms 468 KB Output is correct
58 Correct 2 ms 468 KB Output is correct
59 Correct 3 ms 468 KB Output is correct
60 Correct 2 ms 468 KB Output is correct
61 Correct 2 ms 468 KB Output is correct
62 Correct 3 ms 468 KB Output is correct
63 Correct 3 ms 468 KB Output is correct
64 Correct 3 ms 508 KB Output is correct
65 Correct 2 ms 564 KB Output is correct
66 Correct 2 ms 432 KB Output is correct
67 Correct 220 ms 26160 KB Output is correct
68 Correct 198 ms 29624 KB Output is correct
69 Correct 264 ms 22904 KB Output is correct
70 Correct 268 ms 23476 KB Output is correct
71 Correct 281 ms 23596 KB Output is correct
72 Correct 234 ms 31440 KB Output is correct
73 Correct 205 ms 22332 KB Output is correct
74 Correct 191 ms 20132 KB Output is correct
75 Correct 201 ms 30504 KB Output is correct
76 Correct 211 ms 24344 KB Output is correct
77 Correct 179 ms 30012 KB Output is correct
78 Correct 186 ms 29580 KB Output is correct
79 Correct 234 ms 31516 KB Output is correct
80 Correct 186 ms 30540 KB Output is correct
81 Correct 232 ms 23336 KB Output is correct
82 Correct 245 ms 23600 KB Output is correct
83 Correct 262 ms 31620 KB Output is correct
84 Correct 200 ms 28040 KB Output is correct
85 Correct 245 ms 23556 KB Output is correct
86 Correct 238 ms 31532 KB Output is correct
87 Correct 238 ms 31492 KB Output is correct
88 Correct 223 ms 24748 KB Output is correct
89 Correct 224 ms 23224 KB Output is correct
90 Correct 299 ms 23884 KB Output is correct
91 Correct 299 ms 23528 KB Output is correct
92 Correct 286 ms 23668 KB Output is correct
93 Correct 286 ms 23612 KB Output is correct
94 Correct 272 ms 23500 KB Output is correct
95 Correct 232 ms 26748 KB Output is correct
96 Correct 224 ms 30340 KB Output is correct
97 Correct 192 ms 15408 KB Output is correct
98 Correct 243 ms 22068 KB Output is correct
99 Correct 257 ms 23176 KB Output is correct
100 Correct 139 ms 7316 KB Output is correct
101 Correct 328 ms 23692 KB Output is correct
102 Correct 251 ms 21808 KB Output is correct
103 Correct 298 ms 22532 KB Output is correct
104 Correct 317 ms 24008 KB Output is correct