oj.uz

Submission #164067

# Submission time Handle Problem Language Result Execution time Memory
164067 2019-11-17T08:54:59 Z georgerapeanu Construction of Highway (JOI18_construction) C++11
100 / 100
 538 ms 16620 KB 
#include <cstdio>
#include <map>
#include <vector>
#include <algorithm>

using namespace std;

const int NMAX = 1e5;

int n;
int ferikire[NMAX + 5];

pair<int,int> edges[NMAX + 5];

vector<int> graph[NMAX + 5];
int fst[NMAX + 5];
int snd[NMAX + 5];
int euler_len;
int lant_father[NMAX + 5];
int lvl[NMAX + 5];
int when[NMAX + 5];

void predfs(int nod,int tata){
    lvl[nod] = 1 + lvl[tata];
    fst[nod] = ++euler_len;
    for(auto it:graph[nod]){
        if(it == tata){
            continue;
        }
        predfs(it,nod);
    }
    snd[nod] = euler_len;
}

int aint[2 * NMAX + 5];

void update(int pos,const int &val){
    for(aint[pos += n] = val;pos > 1;pos >>= 1){
        aint[pos >> 1] = (when[aint[pos ^ 1]] > when[aint[pos]] ? aint[pos ^ 1] : aint[pos]);
    }
}

int query(int l,int r){
    l += n;
    r += n + 1;

    int ans = 0;

    for(;l < r;l >>= 1,r >>= 1){
        if(l & 1){ans = (when[ans] > when[aint[l]] ? ans:aint[l]);l++;}
        if(r & 1){ans = (when[ans] > when[aint[r - 1]] ? ans:aint[r - 1]);r--;}
    }

    return ans;
}

int aib[NMAX + 5];

void aib_update(int pos,int val){
    for(;pos <= NMAX;pos += (-pos) & pos){
        aib[pos] += val;
    }
}

int aib_query(int pos){
    int ans = 0;

    for(;pos;pos -= (-pos) & pos){
        ans += aib[pos];
    }

    return ans;
}

int main(){

    scanf("%d",&n);

    vector<int> tmp;

    for(int i = 1;i <= n;i++){
        scanf("%d",&ferikire[i]);
        tmp.push_back(ferikire[i]);
    }
    
    sort(tmp.begin(),tmp.end());
    tmp.resize(unique(tmp.begin(),tmp.end()) - tmp.begin());

    for(int i = 1;i <= n;i++){
        ferikire[i] = lower_bound(tmp.begin(),tmp.end(),ferikire[i]) - tmp.begin() + 1;
    }

    when[1] = 1;
    for(int i = 1;i < n;i++){
        int x,y;
        scanf("%d %d",&x,&y);
        graph[x].push_back(y);
        graph[y].push_back(x);
        edges[i] = {x,y};
        when[y] = i + 1;
    }

    predfs(1,0);

    update(fst[1],1);
    lant_father[1] = 0;

    for(int i = 1;i < n;i++){
        int nod = edges[i].first;
        long long ans = 0;
        vector<pair<int,int> > to_clear;
        while(nod != 0){
            int _lant = query(fst[nod],snd[nod]);
            ans += 1LL * (lvl[nod] - lvl[lant_father[_lant]]) * aib_query(ferikire[_lant] - 1);
            aib_update(ferikire[_lant],lvl[nod] - lvl[lant_father[_lant]]);
            to_clear.push_back({ferikire[_lant],lvl[lant_father[_lant]] - lvl[nod]});
            int lst_nod = nod;
            nod = lant_father[_lant];
            lant_father[_lant] = lst_nod;
        }
        update(fst[edges[i].second],edges[i].second);
        lant_father[edges[i].second] = 0;
        for(auto it:to_clear){
            aib_update(it.first,it.second);
        }
        printf("%lld\n",ans);
    }



    return 0;
}

Compilation message

construction.cpp: In function 'int main()':
construction.cpp:77:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
     ~~~~~^~~~~~~~~
construction.cpp:82:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&ferikire[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~
construction.cpp:96:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d",&x,&y);
         ~~~~~^~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 4 ms 2680 KB Output is correct
4 Correct 5 ms 2680 KB Output is correct
5 Correct 5 ms 2808 KB Output is correct
6 Correct 5 ms 2808 KB Output is correct
7 Correct 5 ms 2808 KB Output is correct
8 Correct 5 ms 2808 KB Output is correct
9 Correct 5 ms 2780 KB Output is correct
10 Correct 5 ms 2808 KB Output is correct
11 Correct 5 ms 2808 KB Output is correct
12 Correct 5 ms 2808 KB Output is correct
13 Correct 5 ms 2808 KB Output is correct
14 Correct 5 ms 2680 KB Output is correct
15 Correct 5 ms 2680 KB Output is correct
16 Correct 5 ms 2808 KB Output is correct
17 Correct 9 ms 2808 KB Output is correct
18 Correct 6 ms 2808 KB Output is correct
19 Correct 5 ms 2808 KB Output is correct
20 Correct 5 ms 2808 KB Output is correct
21 Correct 5 ms 2808 KB Output is correct
22 Correct 5 ms 2808 KB Output is correct
23 Correct 5 ms 2808 KB Output is correct
24 Correct 5 ms 2808 KB Output is correct
25 Correct 5 ms 2808 KB Output is correct
26 Correct 5 ms 2808 KB Output is correct
27 Correct 5 ms 2808 KB Output is correct
28 Correct 5 ms 2808 KB Output is correct
29 Correct 5 ms 2680 KB Output is correct
30 Correct 5 ms 2680 KB Output is correct
31 Correct 5 ms 2808 KB Output is correct
32 Correct 5 ms 2808 KB Output is correct
33 Correct 5 ms 2808 KB Output is correct
34 Correct 5 ms 2680 KB Output is correct
35 Correct 5 ms 2812 KB Output is correct
36 Correct 5 ms 2808 KB Output is correct
37 Correct 5 ms 2808 KB Output is correct
38 Correct 4 ms 2680 KB Output is correct
39 Correct 5 ms 2680 KB Output is correct
40 Correct 6 ms 2808 KB Output is correct
41 Correct 5 ms 2808 KB Output is correct
42 Correct 5 ms 2808 KB Output is correct
43 Correct 5 ms 2680 KB Output is correct
44 Correct 5 ms 2680 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 4 ms 2680 KB Output is correct
4 Correct 5 ms 2680 KB Output is correct
5 Correct 5 ms 2808 KB Output is correct
6 Correct 5 ms 2808 KB Output is correct
7 Correct 5 ms 2808 KB Output is correct
8 Correct 5 ms 2808 KB Output is correct
9 Correct 5 ms 2780 KB Output is correct
10 Correct 5 ms 2808 KB Output is correct
11 Correct 5 ms 2808 KB Output is correct
12 Correct 5 ms 2808 KB Output is correct
13 Correct 5 ms 2808 KB Output is correct
14 Correct 5 ms 2680 KB Output is correct
15 Correct 5 ms 2680 KB Output is correct
16 Correct 5 ms 2808 KB Output is correct
17 Correct 9 ms 2808 KB Output is correct
18 Correct 6 ms 2808 KB Output is correct
19 Correct 5 ms 2808 KB Output is correct
20 Correct 5 ms 2808 KB Output is correct
21 Correct 5 ms 2808 KB Output is correct
22 Correct 5 ms 2808 KB Output is correct
23 Correct 5 ms 2808 KB Output is correct
24 Correct 5 ms 2808 KB Output is correct
25 Correct 5 ms 2808 KB Output is correct
26 Correct 5 ms 2808 KB Output is correct
27 Correct 5 ms 2808 KB Output is correct
28 Correct 5 ms 2808 KB Output is correct
29 Correct 5 ms 2680 KB Output is correct
30 Correct 5 ms 2680 KB Output is correct
31 Correct 5 ms 2808 KB Output is correct
32 Correct 5 ms 2808 KB Output is correct
33 Correct 5 ms 2808 KB Output is correct
34 Correct 5 ms 2680 KB Output is correct
35 Correct 5 ms 2812 KB Output is correct
36 Correct 5 ms 2808 KB Output is correct
37 Correct 5 ms 2808 KB Output is correct
38 Correct 4 ms 2680 KB Output is correct
39 Correct 5 ms 2680 KB Output is correct
40 Correct 6 ms 2808 KB Output is correct
41 Correct 5 ms 2808 KB Output is correct
42 Correct 5 ms 2808 KB Output is correct
43 Correct 5 ms 2680 KB Output is correct
44 Correct 5 ms 2680 KB Output is correct
45 Correct 6 ms 2808 KB Output is correct
46 Correct 11 ms 3192 KB Output is correct
47 Correct 11 ms 3064 KB Output is correct
48 Correct 11 ms 3064 KB Output is correct
49 Correct 9 ms 3320 KB Output is correct
50 Correct 10 ms 3320 KB Output is correct
51 Correct 9 ms 3232 KB Output is correct
52 Correct 9 ms 3192 KB Output is correct
53 Correct 9 ms 3192 KB Output is correct
54 Correct 9 ms 3192 KB Output is correct
55 Correct 9 ms 3192 KB Output is correct
56 Correct 9 ms 3192 KB Output is correct
57 Correct 30 ms 3064 KB Output is correct
58 Correct 15 ms 3064 KB Output is correct
59 Correct 14 ms 3136 KB Output is correct
60 Correct 14 ms 3064 KB Output is correct
61 Correct 10 ms 3192 KB Output is correct
62 Correct 9 ms 3192 KB Output is correct
63 Correct 9 ms 3192 KB Output is correct
64 Correct 11 ms 3064 KB Output is correct
65 Correct 10 ms 3064 KB Output is correct
66 Correct 11 ms 3192 KB Output is correct
67 Correct 11 ms 3084 KB Output is correct
68 Correct 9 ms 3324 KB Output is correct
69 Correct 9 ms 3192 KB Output is correct
70 Correct 9 ms 3192 KB Output is correct
71 Correct 9 ms 3192 KB Output is correct
72 Correct 14 ms 3064 KB Output is correct
73 Correct 15 ms 3112 KB Output is correct
74 Correct 9 ms 3108 KB Output is correct
75 Correct 9 ms 3064 KB Output is correct
76 Correct 9 ms 3196 KB Output is correct
77 Correct 9 ms 3064 KB Output is correct
78 Correct 8 ms 3192 KB Output is correct
79 Correct 9 ms 3064 KB Output is correct
80 Correct 9 ms 3036 KB Output is correct
81 Correct 9 ms 3064 KB Output is correct
82 Correct 9 ms 3064 KB Output is correct
83 Correct 9 ms 3064 KB Output is correct
84 Correct 9 ms 3064 KB Output is correct
85 Correct 9 ms 3064 KB Output is correct
86 Correct 9 ms 3112 KB Output is correct

Subtask #3
84.0 / 84.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 4 ms 2680 KB Output is correct
4 Correct 5 ms 2680 KB Output is correct
5 Correct 5 ms 2808 KB Output is correct
6 Correct 5 ms 2808 KB Output is correct
7 Correct 5 ms 2808 KB Output is correct
8 Correct 5 ms 2808 KB Output is correct
9 Correct 5 ms 2780 KB Output is correct
10 Correct 5 ms 2808 KB Output is correct
11 Correct 5 ms 2808 KB Output is correct
12 Correct 5 ms 2808 KB Output is correct
13 Correct 5 ms 2808 KB Output is correct
14 Correct 5 ms 2680 KB Output is correct
15 Correct 5 ms 2680 KB Output is correct
16 Correct 5 ms 2808 KB Output is correct
17 Correct 9 ms 2808 KB Output is correct
18 Correct 6 ms 2808 KB Output is correct
19 Correct 5 ms 2808 KB Output is correct
20 Correct 5 ms 2808 KB Output is correct
21 Correct 5 ms 2808 KB Output is correct
22 Correct 5 ms 2808 KB Output is correct
23 Correct 5 ms 2808 KB Output is correct
24 Correct 5 ms 2808 KB Output is correct
25 Correct 5 ms 2808 KB Output is correct
26 Correct 5 ms 2808 KB Output is correct
27 Correct 5 ms 2808 KB Output is correct
28 Correct 5 ms 2808 KB Output is correct
29 Correct 5 ms 2680 KB Output is correct
30 Correct 5 ms 2680 KB Output is correct
31 Correct 5 ms 2808 KB Output is correct
32 Correct 5 ms 2808 KB Output is correct
33 Correct 5 ms 2808 KB Output is correct
34 Correct 5 ms 2680 KB Output is correct
35 Correct 5 ms 2812 KB Output is correct
36 Correct 5 ms 2808 KB Output is correct
37 Correct 5 ms 2808 KB Output is correct
38 Correct 4 ms 2680 KB Output is correct
39 Correct 5 ms 2680 KB Output is correct
40 Correct 6 ms 2808 KB Output is correct
41 Correct 5 ms 2808 KB Output is correct
42 Correct 5 ms 2808 KB Output is correct
43 Correct 5 ms 2680 KB Output is correct
44 Correct 5 ms 2680 KB Output is correct
45 Correct 6 ms 2808 KB Output is correct
46 Correct 11 ms 3192 KB Output is correct
47 Correct 11 ms 3064 KB Output is correct
48 Correct 11 ms 3064 KB Output is correct
49 Correct 9 ms 3320 KB Output is correct
50 Correct 10 ms 3320 KB Output is correct
51 Correct 9 ms 3232 KB Output is correct
52 Correct 9 ms 3192 KB Output is correct
53 Correct 9 ms 3192 KB Output is correct
54 Correct 9 ms 3192 KB Output is correct
55 Correct 9 ms 3192 KB Output is correct
56 Correct 9 ms 3192 KB Output is correct
57 Correct 30 ms 3064 KB Output is correct
58 Correct 15 ms 3064 KB Output is correct
59 Correct 14 ms 3136 KB Output is correct
60 Correct 14 ms 3064 KB Output is correct
61 Correct 10 ms 3192 KB Output is correct
62 Correct 9 ms 3192 KB Output is correct
63 Correct 9 ms 3192 KB Output is correct
64 Correct 11 ms 3064 KB Output is correct
65 Correct 10 ms 3064 KB Output is correct
66 Correct 11 ms 3192 KB Output is correct
67 Correct 11 ms 3084 KB Output is correct
68 Correct 9 ms 3324 KB Output is correct
69 Correct 9 ms 3192 KB Output is correct
70 Correct 9 ms 3192 KB Output is correct
71 Correct 9 ms 3192 KB Output is correct
72 Correct 14 ms 3064 KB Output is correct
73 Correct 15 ms 3112 KB Output is correct
74 Correct 9 ms 3108 KB Output is correct
75 Correct 9 ms 3064 KB Output is correct
76 Correct 9 ms 3196 KB Output is correct
77 Correct 9 ms 3064 KB Output is correct
78 Correct 8 ms 3192 KB Output is correct
79 Correct 9 ms 3064 KB Output is correct
80 Correct 9 ms 3036 KB Output is correct
81 Correct 9 ms 3064 KB Output is correct
82 Correct 9 ms 3064 KB Output is correct
83 Correct 9 ms 3064 KB Output is correct
84 Correct 9 ms 3064 KB Output is correct
85 Correct 9 ms 3064 KB Output is correct
86 Correct 9 ms 3112 KB Output is correct
87 Correct 25 ms 3576 KB Output is correct
88 Correct 79 ms 5272 KB Output is correct
89 Correct 310 ms 11028 KB Output is correct
90 Correct 315 ms 11120 KB Output is correct
91 Correct 330 ms 11152 KB Output is correct
92 Correct 167 ms 15604 KB Output is correct
93 Correct 182 ms 15524 KB Output is correct
94 Correct 172 ms 15604 KB Output is correct
95 Correct 175 ms 14080 KB Output is correct
96 Correct 182 ms 13936 KB Output is correct
97 Correct 198 ms 13868 KB Output is correct
98 Correct 182 ms 14068 KB Output is correct
99 Correct 202 ms 13360 KB Output is correct
100 Correct 477 ms 10984 KB Output is correct
101 Correct 525 ms 11080 KB Output is correct
102 Correct 500 ms 11020 KB Output is correct
103 Correct 538 ms 12964 KB Output is correct
104 Correct 205 ms 15452 KB Output is correct
105 Correct 196 ms 15368 KB Output is correct
106 Correct 203 ms 15324 KB Output is correct
107 Correct 267 ms 12016 KB Output is correct
108 Correct 288 ms 12016 KB Output is correct
109 Correct 299 ms 12400 KB Output is correct
110 Correct 150 ms 16620 KB Output is correct
111 Correct 169 ms 15640 KB Output is correct
112 Correct 168 ms 15040 KB Output is correct
113 Correct 159 ms 14320 KB Output is correct
114 Correct 497 ms 12660 KB Output is correct
115 Correct 522 ms 12064 KB Output is correct
116 Correct 175 ms 14404 KB Output is correct
117 Correct 177 ms 13836 KB Output is correct
118 Correct 169 ms 13384 KB Output is correct
119 Correct 181 ms 13248 KB Output is correct
120 Correct 151 ms 13044 KB Output is correct
121 Correct 160 ms 12688 KB Output is correct
122 Correct 161 ms 12580 KB Output is correct
123 Correct 232 ms 13968 KB Output is correct
124 Correct 458 ms 13396 KB Output is correct
125 Correct 204 ms 13292 KB Output is correct
126 Correct 188 ms 13168 KB Output is correct
127 Correct 190 ms 12780 KB Output is correct
128 Correct 189 ms 12528 KB Output is correct