oj.uz

Submission #893036

# Submission time Handle Problem Language Result Execution time Memory
893036 2023-12-26T11:44:58 Z alexander707070 Security Guard (JOI23_guard) C++14
58 / 100
 4000 ms 56848 KB 
#include<bits/stdc++.h>
#define MAXN 200007
using namespace std;

struct edge{
    int from,to,cost;
};

bool cmp(edge fr,edge sc){
    return fr.cost<sc.cost;
}

int n,m,q,a,b,s[MAXN],c,d;
vector<edge> w;
unordered_set<int> tree[MAXN];
long long ans;
bool ok;

int dsu[MAXN],sz[MAXN],maxs;

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

void mergev(int x,int y){
    int rootx=root(x);
    int rooty=root(y);

    if(sz[rooty]>sz[rootx])swap(rootx,rooty);
    sz[rootx]+=sz[rooty];
    dsu[rooty]=dsu[rootx];
}

int best(int x,int y){
    if(s[x]<s[y])return x;
    return y;
}

int dfs(int x,int p){
    int res=x;

    for(int e:tree[x]){
        if(e==p)continue;
        res=best(res,dfs(e,x));
    }

    return res;
}

int main(){

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

    cin>>n>>m>>q;

    for(int i=1;i<=n;i++){
        cin>>s[i];
        ans-=s[i];
        maxs=max(maxs,s[i]);

        dsu[i]=i; sz[i]=1;
    }

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

    sort(w.begin(),w.end(),cmp);

    for(int i=0;i<w.size();i++){
        if(root(w[i].from)==root(w[i].to))continue;
        mergev(w[i].from,w[i].to);

        tree[w[i].from].insert(w[i].to);
        tree[w[i].to].insert(w[i].from);

        ans+=s[w[i].from]+s[w[i].to];
    }

    ans+=maxs;

    cout<<ans<<"\n";

    for(int i=1;i<=q;i++){

        maxs=0;

        for(int f=1;f<=n and !ok;f++){
            for(int e:tree[f]){
                if(e<f)continue;

                int sx=dfs(f,e);
                int sy=dfs(e,f);
                
                if(s[f]+s[e]-s[sx]-s[sy]>maxs){
                    maxs=s[f]+s[e]-s[sx]-s[sy];
                    a=f; b=e; c=sx; d=sy;
                }
            }
        }

        if(maxs!=0){
            ans-=maxs;
            tree[a].erase(b);
            tree[b].erase(a);

            tree[c].insert(d);
            tree[d].insert(c);
        }else ok=true;

        cout<<ans<<"\n";
    }


    return 0;
}

Compilation message

guard.cpp: In function 'int main()':
guard.cpp:75:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   75 |     for(int i=0;i<w.size();i++){
      |                 ~^~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12636 KB Output is correct
2 Correct 89 ms 50476 KB Output is correct
3 Correct 86 ms 50304 KB Output is correct
4 Correct 113 ms 50364 KB Output is correct
5 Correct 112 ms 50764 KB Output is correct
6 Correct 124 ms 50412 KB Output is correct
7 Correct 112 ms 50344 KB Output is correct
8 Correct 3 ms 12636 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12636 KB Output is correct
2 Correct 89 ms 50476 KB Output is correct
3 Correct 86 ms 50304 KB Output is correct
4 Correct 113 ms 50364 KB Output is correct
5 Correct 112 ms 50764 KB Output is correct
6 Correct 124 ms 50412 KB Output is correct
7 Correct 112 ms 50344 KB Output is correct
8 Correct 3 ms 12636 KB Output is correct
9 Correct 3 ms 12636 KB Output is correct
10 Correct 173 ms 50524 KB Output is correct
11 Correct 102 ms 50364 KB Output is correct
12 Correct 88 ms 50684 KB Output is correct
13 Correct 84 ms 50316 KB Output is correct
14 Correct 169 ms 50364 KB Output is correct
15 Correct 180 ms 51132 KB Output is correct
16 Correct 166 ms 50884 KB Output is correct
17 Correct 165 ms 50292 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12636 KB Output is correct
2 Correct 89 ms 50476 KB Output is correct
3 Correct 86 ms 50304 KB Output is correct
4 Correct 113 ms 50364 KB Output is correct
5 Correct 112 ms 50764 KB Output is correct
6 Correct 124 ms 50412 KB Output is correct
7 Correct 112 ms 50344 KB Output is correct
8 Correct 3 ms 12636 KB Output is correct
9 Correct 3 ms 12636 KB Output is correct
10 Correct 173 ms 50524 KB Output is correct
11 Correct 102 ms 50364 KB Output is correct
12 Correct 88 ms 50684 KB Output is correct
13 Correct 84 ms 50316 KB Output is correct
14 Correct 169 ms 50364 KB Output is correct
15 Correct 180 ms 51132 KB Output is correct
16 Correct 166 ms 50884 KB Output is correct
17 Correct 165 ms 50292 KB Output is correct
18 Correct 4 ms 12636 KB Output is correct
19 Correct 216 ms 50644 KB Output is correct
20 Correct 199 ms 50412 KB Output is correct
21 Correct 199 ms 50356 KB Output is correct
22 Correct 225 ms 50852 KB Output is correct
23 Correct 205 ms 52148 KB Output is correct
24 Correct 231 ms 52768 KB Output is correct
25 Correct 304 ms 52748 KB Output is correct
26 Correct 282 ms 53696 KB Output is correct
27 Correct 195 ms 53116 KB Output is correct
28 Correct 221 ms 50876 KB Output is correct
29 Correct 240 ms 51208 KB Output is correct
30 Correct 266 ms 52160 KB Output is correct
31 Correct 198 ms 53064 KB Output is correct
32 Correct 226 ms 51128 KB Output is correct
33 Correct 193 ms 50632 KB Output is correct
34 Correct 180 ms 50364 KB Output is correct
35 Correct 181 ms 50624 KB Output is correct
36 Correct 220 ms 52664 KB Output is correct
37 Correct 262 ms 52668 KB Output is correct
38 Correct 208 ms 51132 KB Output is correct
39 Correct 209 ms 51916 KB Output is correct
40 Correct 185 ms 50976 KB Output is correct
41 Correct 157 ms 50620 KB Output is correct
42 Correct 170 ms 50412 KB Output is correct
43 Correct 205 ms 50364 KB Output is correct
44 Correct 207 ms 50624 KB Output is correct
45 Correct 201 ms 50624 KB Output is correct
46 Correct 191 ms 51132 KB Output is correct
47 Correct 192 ms 50356 KB Output is correct
48 Correct 202 ms 50924 KB Output is correct
49 Correct 162 ms 50876 KB Output is correct
50 Correct 168 ms 50360 KB Output is correct
51 Correct 202 ms 50552 KB Output is correct
52 Correct 189 ms 50360 KB Output is correct

Subtask #4
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12636 KB Output is correct
2 Correct 89 ms 50476 KB Output is correct
3 Correct 86 ms 50304 KB Output is correct
4 Correct 113 ms 50364 KB Output is correct
5 Correct 112 ms 50764 KB Output is correct
6 Correct 124 ms 50412 KB Output is correct
7 Correct 112 ms 50344 KB Output is correct
8 Correct 3 ms 12636 KB Output is correct
9 Correct 3 ms 12636 KB Output is correct
10 Correct 173 ms 50524 KB Output is correct
11 Correct 102 ms 50364 KB Output is correct
12 Correct 88 ms 50684 KB Output is correct
13 Correct 84 ms 50316 KB Output is correct
14 Correct 169 ms 50364 KB Output is correct
15 Correct 180 ms 51132 KB Output is correct
16 Correct 166 ms 50884 KB Output is correct
17 Correct 165 ms 50292 KB Output is correct
18 Correct 4 ms 12636 KB Output is correct
19 Correct 216 ms 50644 KB Output is correct
20 Correct 199 ms 50412 KB Output is correct
21 Correct 199 ms 50356 KB Output is correct
22 Correct 225 ms 50852 KB Output is correct
23 Correct 205 ms 52148 KB Output is correct
24 Correct 231 ms 52768 KB Output is correct
25 Correct 304 ms 52748 KB Output is correct
26 Correct 282 ms 53696 KB Output is correct
27 Correct 195 ms 53116 KB Output is correct
28 Correct 221 ms 50876 KB Output is correct
29 Correct 240 ms 51208 KB Output is correct
30 Correct 266 ms 52160 KB Output is correct
31 Correct 198 ms 53064 KB Output is correct
32 Correct 226 ms 51128 KB Output is correct
33 Correct 193 ms 50632 KB Output is correct
34 Correct 180 ms 50364 KB Output is correct
35 Correct 181 ms 50624 KB Output is correct
36 Correct 220 ms 52664 KB Output is correct
37 Correct 262 ms 52668 KB Output is correct
38 Correct 208 ms 51132 KB Output is correct
39 Correct 209 ms 51916 KB Output is correct
40 Correct 185 ms 50976 KB Output is correct
41 Correct 157 ms 50620 KB Output is correct
42 Correct 170 ms 50412 KB Output is correct
43 Correct 205 ms 50364 KB Output is correct
44 Correct 207 ms 50624 KB Output is correct
45 Correct 201 ms 50624 KB Output is correct
46 Correct 191 ms 51132 KB Output is correct
47 Correct 192 ms 50356 KB Output is correct
48 Correct 202 ms 50924 KB Output is correct
49 Correct 162 ms 50876 KB Output is correct
50 Correct 168 ms 50360 KB Output is correct
51 Correct 202 ms 50552 KB Output is correct
52 Correct 189 ms 50360 KB Output is correct
53 Correct 3 ms 12632 KB Output is correct
54 Correct 208 ms 50612 KB Output is correct
55 Correct 216 ms 50624 KB Output is correct
56 Correct 220 ms 52620 KB Output is correct
57 Correct 261 ms 52660 KB Output is correct
58 Correct 254 ms 55732 KB Output is correct
59 Correct 277 ms 55044 KB Output is correct
60 Correct 310 ms 54792 KB Output is correct
61 Correct 304 ms 55476 KB Output is correct
62 Correct 261 ms 56848 KB Output is correct
63 Correct 259 ms 50876 KB Output is correct
64 Correct 260 ms 52404 KB Output is correct
65 Correct 301 ms 54352 KB Output is correct
66 Correct 297 ms 56308 KB Output is correct
67 Correct 309 ms 53432 KB Output is correct
68 Correct 176 ms 50392 KB Output is correct
69 Correct 212 ms 53192 KB Output is correct
70 Correct 182 ms 51132 KB Output is correct
71 Correct 206 ms 52436 KB Output is correct
72 Correct 255 ms 52964 KB Output is correct
73 Correct 216 ms 51136 KB Output is correct
74 Correct 195 ms 51896 KB Output is correct
75 Correct 211 ms 51648 KB Output is correct
76 Correct 155 ms 50492 KB Output is correct
77 Correct 155 ms 50640 KB Output is correct
78 Correct 192 ms 50712 KB Output is correct
79 Correct 254 ms 52856 KB Output is correct
80 Correct 214 ms 51036 KB Output is correct
81 Correct 225 ms 54012 KB Output is correct
82 Correct 228 ms 53292 KB Output is correct
83 Correct 251 ms 53828 KB Output is correct
84 Correct 217 ms 53684 KB Output is correct
85 Correct 162 ms 50364 KB Output is correct
86 Correct 199 ms 50576 KB Output is correct
87 Correct 183 ms 50368 KB Output is correct
88 Correct 252 ms 53684 KB Output is correct

Subtask #5
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12632 KB Output is correct
2 Correct 3 ms 12636 KB Output is correct
3 Correct 3 ms 12636 KB Output is correct
4 Correct 3 ms 12636 KB Output is correct
5 Correct 3 ms 12636 KB Output is correct
6 Correct 3 ms 12740 KB Output is correct
7 Correct 3 ms 12636 KB Output is correct
8 Correct 15 ms 14940 KB Output is correct
9 Correct 15 ms 14940 KB Output is correct
10 Correct 14 ms 14684 KB Output is correct
11 Correct 15 ms 14940 KB Output is correct
12 Correct 15 ms 14936 KB Output is correct
13 Correct 15 ms 14940 KB Output is correct
14 Correct 15 ms 14936 KB Output is correct
15 Correct 15 ms 14936 KB Output is correct
16 Correct 15 ms 14940 KB Output is correct

Subtask #6
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12632 KB Output is correct
2 Correct 3 ms 12636 KB Output is correct
3 Correct 3 ms 12636 KB Output is correct
4 Correct 3 ms 12636 KB Output is correct
5 Correct 3 ms 12636 KB Output is correct
6 Correct 3 ms 12740 KB Output is correct
7 Correct 3 ms 12636 KB Output is correct
8 Correct 15 ms 14940 KB Output is correct
9 Correct 15 ms 14940 KB Output is correct
10 Correct 14 ms 14684 KB Output is correct
11 Correct 15 ms 14940 KB Output is correct
12 Correct 15 ms 14936 KB Output is correct
13 Correct 15 ms 14940 KB Output is correct
14 Correct 15 ms 14936 KB Output is correct
15 Correct 15 ms 14936 KB Output is correct
16 Correct 15 ms 14940 KB Output is correct
17 Execution timed out 4009 ms 13652 KB Time limit exceeded
18 Halted 0 ms 0 KB -

Subtask #7
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12636 KB Output is correct
2 Correct 89 ms 50476 KB Output is correct
3 Correct 86 ms 50304 KB Output is correct
4 Correct 113 ms 50364 KB Output is correct
5 Correct 112 ms 50764 KB Output is correct
6 Correct 124 ms 50412 KB Output is correct
7 Correct 112 ms 50344 KB Output is correct
8 Correct 3 ms 12636 KB Output is correct
9 Correct 3 ms 12636 KB Output is correct
10 Correct 173 ms 50524 KB Output is correct
11 Correct 102 ms 50364 KB Output is correct
12 Correct 88 ms 50684 KB Output is correct
13 Correct 84 ms 50316 KB Output is correct
14 Correct 169 ms 50364 KB Output is correct
15 Correct 180 ms 51132 KB Output is correct
16 Correct 166 ms 50884 KB Output is correct
17 Correct 165 ms 50292 KB Output is correct
18 Correct 4 ms 12636 KB Output is correct
19 Correct 216 ms 50644 KB Output is correct
20 Correct 199 ms 50412 KB Output is correct
21 Correct 199 ms 50356 KB Output is correct
22 Correct 225 ms 50852 KB Output is correct
23 Correct 205 ms 52148 KB Output is correct
24 Correct 231 ms 52768 KB Output is correct
25 Correct 304 ms 52748 KB Output is correct
26 Correct 282 ms 53696 KB Output is correct
27 Correct 195 ms 53116 KB Output is correct
28 Correct 221 ms 50876 KB Output is correct
29 Correct 240 ms 51208 KB Output is correct
30 Correct 266 ms 52160 KB Output is correct
31 Correct 198 ms 53064 KB Output is correct
32 Correct 226 ms 51128 KB Output is correct
33 Correct 193 ms 50632 KB Output is correct
34 Correct 180 ms 50364 KB Output is correct
35 Correct 181 ms 50624 KB Output is correct
36 Correct 220 ms 52664 KB Output is correct
37 Correct 262 ms 52668 KB Output is correct
38 Correct 208 ms 51132 KB Output is correct
39 Correct 209 ms 51916 KB Output is correct
40 Correct 185 ms 50976 KB Output is correct
41 Correct 157 ms 50620 KB Output is correct
42 Correct 170 ms 50412 KB Output is correct
43 Correct 205 ms 50364 KB Output is correct
44 Correct 207 ms 50624 KB Output is correct
45 Correct 201 ms 50624 KB Output is correct
46 Correct 191 ms 51132 KB Output is correct
47 Correct 192 ms 50356 KB Output is correct
48 Correct 202 ms 50924 KB Output is correct
49 Correct 162 ms 50876 KB Output is correct
50 Correct 168 ms 50360 KB Output is correct
51 Correct 202 ms 50552 KB Output is correct
52 Correct 189 ms 50360 KB Output is correct
53 Correct 3 ms 12632 KB Output is correct
54 Correct 208 ms 50612 KB Output is correct
55 Correct 216 ms 50624 KB Output is correct
56 Correct 220 ms 52620 KB Output is correct
57 Correct 261 ms 52660 KB Output is correct
58 Correct 254 ms 55732 KB Output is correct
59 Correct 277 ms 55044 KB Output is correct
60 Correct 310 ms 54792 KB Output is correct
61 Correct 304 ms 55476 KB Output is correct
62 Correct 261 ms 56848 KB Output is correct
63 Correct 259 ms 50876 KB Output is correct
64 Correct 260 ms 52404 KB Output is correct
65 Correct 301 ms 54352 KB Output is correct
66 Correct 297 ms 56308 KB Output is correct
67 Correct 309 ms 53432 KB Output is correct
68 Correct 176 ms 50392 KB Output is correct
69 Correct 212 ms 53192 KB Output is correct
70 Correct 182 ms 51132 KB Output is correct
71 Correct 206 ms 52436 KB Output is correct
72 Correct 255 ms 52964 KB Output is correct
73 Correct 216 ms 51136 KB Output is correct
74 Correct 195 ms 51896 KB Output is correct
75 Correct 211 ms 51648 KB Output is correct
76 Correct 155 ms 50492 KB Output is correct
77 Correct 155 ms 50640 KB Output is correct
78 Correct 192 ms 50712 KB Output is correct
79 Correct 254 ms 52856 KB Output is correct
80 Correct 214 ms 51036 KB Output is correct
81 Correct 225 ms 54012 KB Output is correct
82 Correct 228 ms 53292 KB Output is correct
83 Correct 251 ms 53828 KB Output is correct
84 Correct 217 ms 53684 KB Output is correct
85 Correct 162 ms 50364 KB Output is correct
86 Correct 199 ms 50576 KB Output is correct
87 Correct 183 ms 50368 KB Output is correct
88 Correct 252 ms 53684 KB Output is correct
89 Correct 3 ms 12632 KB Output is correct
90 Correct 3 ms 12636 KB Output is correct
91 Correct 3 ms 12636 KB Output is correct
92 Correct 3 ms 12636 KB Output is correct
93 Correct 3 ms 12636 KB Output is correct
94 Correct 3 ms 12740 KB Output is correct
95 Correct 3 ms 12636 KB Output is correct
96 Correct 15 ms 14940 KB Output is correct
97 Correct 15 ms 14940 KB Output is correct
98 Correct 14 ms 14684 KB Output is correct
99 Correct 15 ms 14940 KB Output is correct
100 Correct 15 ms 14936 KB Output is correct
101 Correct 15 ms 14940 KB Output is correct
102 Correct 15 ms 14936 KB Output is correct
103 Correct 15 ms 14936 KB Output is correct
104 Correct 15 ms 14940 KB Output is correct
105 Execution timed out 4009 ms 13652 KB Time limit exceeded
106 Halted 0 ms 0 KB -