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답안 #427376

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
427376 2021-06-14T14:41:31 Z cpp219 Traffic (IOI10_traffic) C++14
50 / 100
 745 ms 262148 KB 
#pragma GCC optimization "O2"
#pragma GCC optimization "unroll-loop"
#pragma GCC target ("avx2")

#include <bits/stdc++.h>
#define ll int
#define ld long double
#define fs first
#define sc second
using namespace std;
const ll N = 1e6 + 9;
const ll inf = INT_MAX;
const ll Log2 = 20;
typedef pair<ll,ll> LL;
vector<ll> g[N];
ll n,a[N],mn = inf,chosen,child[N],InitChild[N],sum;
set<LL> s[N];

void DFSinit(ll u,ll p){
    child[u] = a[u];
    for (auto i : g[u]){
        if (i == p) continue;
        DFSinit(i,u); child[u] += child[i];
        s[u].insert({child[i],i});
    }
    InitChild[u] = child[u];
}

void DFS(ll u,ll p){
    if (!s[u].empty()){
        LL now = *s[u].rbegin(),rm = {sum - child[u],-1};
        now = max(now,rm);
        if (now.fs < mn) mn = now.fs,chosen = u;
    }
    for (auto i : g[u]){
        if (i == p) continue;
        s[u].erase({child[i],i}); s[i].insert({sum - child[i],u});
        //cout<<child[i]<<" "<<i; exit(0);
        child[u] = sum - child[i]; child[i] = sum;
        DFS(i,u);
    }
    if (p >= 0){
        child[u] = InitChild[u];
        s[p].insert({child[u],u}); s[u].erase({child[p],p});
        child[p] = InitChild[p];
    }
}

ll LocateCentre(ll sz,ll P[],ll X[],ll Y[]){
    n = sz;
    for (ll i = 0;i < n;i++) a[i] = P[i],sum += a[i];
    for (ll i = 0;i < n - 1;i++){
        g[X[i]].push_back(Y[i]); g[Y[i]].push_back(X[i]);
    }
    DFSinit(0,-1); DFS(0,-1);
    return chosen;
}
/*
ll sz,X[N],Y[N],P[N];

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);
    #define task "test"
    if (fopen(task".inp", "r")){
        freopen(task".inp", "r", stdin);
        //freopen(task".out", "w", stdout);
    }
    cin>>sz;
    for (ll i = 0;i < sz;i++) cin>>P[i];
    for (ll i = 0;i < sz - 1;i++) cin>>X[i]>>Y[i];
    cout<<LocateCentre(sz,P,X,Y);
}
*/

Compilation message

traffic.cpp:1: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    1 | #pragma GCC optimization "O2"
      | 
traffic.cpp:2: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    2 | #pragma GCC optimization "unroll-loop"
      |

Subtask #1
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 44 ms 70720 KB Output is correct
2 Correct 44 ms 70776 KB Output is correct
3 Correct 45 ms 70724 KB Output is correct
4 Correct 43 ms 70696 KB Output is correct
5 Correct 44 ms 70724 KB Output is correct
6 Correct 44 ms 70660 KB Output is correct
7 Correct 43 ms 70724 KB Output is correct
8 Correct 46 ms 70680 KB Output is correct
9 Correct 42 ms 70724 KB Output is correct
10 Correct 44 ms 70788 KB Output is correct
11 Correct 46 ms 70764 KB Output is correct
12 Correct 42 ms 70768 KB Output is correct
13 Correct 44 ms 70724 KB Output is correct
14 Correct 42 ms 70716 KB Output is correct
15 Correct 44 ms 70748 KB Output is correct
16 Correct 41 ms 70688 KB Output is correct
17 Correct 46 ms 70724 KB Output is correct
18 Correct 43 ms 70684 KB Output is correct
19 Correct 47 ms 70768 KB Output is correct
20 Correct 51 ms 70728 KB Output is correct
21 Correct 45 ms 70724 KB Output is correct
22 Correct 46 ms 70752 KB Output is correct
23 Correct 44 ms 70752 KB Output is correct
24 Correct 41 ms 70740 KB Output is correct
25 Correct 42 ms 70724 KB Output is correct
26 Correct 43 ms 70812 KB Output is correct
27 Correct 44 ms 70828 KB Output is correct
28 Correct 57 ms 70768 KB Output is correct
29 Correct 44 ms 70768 KB Output is correct
30 Correct 51 ms 70852 KB Output is correct
31 Correct 45 ms 70836 KB Output is correct
32 Correct 49 ms 70840 KB Output is correct
33 Correct 45 ms 70856 KB Output is correct
34 Correct 48 ms 70732 KB Output is correct
35 Correct 54 ms 70852 KB Output is correct
36 Correct 45 ms 71008 KB Output is correct
37 Correct 45 ms 70812 KB Output is correct
38 Correct 48 ms 70888 KB Output is correct
39 Correct 45 ms 70852 KB Output is correct
40 Correct 45 ms 70932 KB Output is correct
41 Correct 48 ms 70988 KB Output is correct
42 Correct 46 ms 70984 KB Output is correct
43 Correct 43 ms 70680 KB Output is correct
44 Correct 49 ms 70772 KB Output is correct
45 Correct 46 ms 70740 KB Output is correct
46 Correct 48 ms 70772 KB Output is correct
47 Correct 48 ms 70724 KB Output is correct

Subtask #2
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 44 ms 70720 KB Output is correct
2 Correct 44 ms 70776 KB Output is correct
3 Correct 45 ms 70724 KB Output is correct
4 Correct 43 ms 70696 KB Output is correct
5 Correct 44 ms 70724 KB Output is correct
6 Correct 44 ms 70660 KB Output is correct
7 Correct 43 ms 70724 KB Output is correct
8 Correct 46 ms 70680 KB Output is correct
9 Correct 42 ms 70724 KB Output is correct
10 Correct 44 ms 70788 KB Output is correct
11 Correct 46 ms 70764 KB Output is correct
12 Correct 42 ms 70768 KB Output is correct
13 Correct 44 ms 70724 KB Output is correct
14 Correct 42 ms 70716 KB Output is correct
15 Correct 44 ms 70748 KB Output is correct
16 Correct 41 ms 70688 KB Output is correct
17 Correct 46 ms 70724 KB Output is correct
18 Correct 43 ms 70684 KB Output is correct
19 Correct 47 ms 70768 KB Output is correct
20 Correct 51 ms 70728 KB Output is correct
21 Correct 45 ms 70724 KB Output is correct
22 Correct 46 ms 70752 KB Output is correct
23 Correct 44 ms 70752 KB Output is correct
24 Correct 41 ms 70740 KB Output is correct
25 Correct 42 ms 70724 KB Output is correct
26 Correct 43 ms 70812 KB Output is correct
27 Correct 44 ms 70828 KB Output is correct
28 Correct 57 ms 70768 KB Output is correct
29 Correct 44 ms 70768 KB Output is correct
30 Correct 51 ms 70852 KB Output is correct
31 Correct 45 ms 70836 KB Output is correct
32 Correct 49 ms 70840 KB Output is correct
33 Correct 45 ms 70856 KB Output is correct
34 Correct 48 ms 70732 KB Output is correct
35 Correct 54 ms 70852 KB Output is correct
36 Correct 45 ms 71008 KB Output is correct
37 Correct 45 ms 70812 KB Output is correct
38 Correct 48 ms 70888 KB Output is correct
39 Correct 45 ms 70852 KB Output is correct
40 Correct 45 ms 70932 KB Output is correct
41 Correct 48 ms 70988 KB Output is correct
42 Correct 46 ms 70984 KB Output is correct
43 Correct 43 ms 70680 KB Output is correct
44 Correct 49 ms 70772 KB Output is correct
45 Correct 46 ms 70740 KB Output is correct
46 Correct 48 ms 70772 KB Output is correct
47 Correct 48 ms 70724 KB Output is correct
48 Correct 55 ms 70720 KB Output is correct
49 Correct 54 ms 70688 KB Output is correct
50 Correct 58 ms 70728 KB Output is correct
51 Correct 54 ms 70720 KB Output is correct
52 Correct 50 ms 70668 KB Output is correct
53 Correct 50 ms 70672 KB Output is correct
54 Correct 47 ms 70692 KB Output is correct
55 Correct 46 ms 70708 KB Output is correct
56 Correct 48 ms 70664 KB Output is correct
57 Correct 67 ms 70732 KB Output is correct
58 Correct 49 ms 70716 KB Output is correct
59 Correct 48 ms 70728 KB Output is correct
60 Correct 50 ms 70708 KB Output is correct
61 Correct 44 ms 70720 KB Output is correct
62 Correct 51 ms 70760 KB Output is correct
63 Correct 51 ms 70792 KB Output is correct
64 Correct 57 ms 70716 KB Output is correct
65 Correct 51 ms 70772 KB Output is correct
66 Correct 57 ms 70712 KB Output is correct
67 Correct 51 ms 70696 KB Output is correct
68 Correct 84 ms 82012 KB Output is correct
69 Correct 134 ms 93452 KB Output is correct
70 Correct 50 ms 70728 KB Output is correct
71 Correct 164 ms 104720 KB Output is correct
72 Correct 192 ms 116076 KB Output is correct
73 Correct 231 ms 127528 KB Output is correct
74 Correct 272 ms 138872 KB Output is correct
75 Correct 384 ms 150136 KB Output is correct
76 Correct 338 ms 161576 KB Output is correct
77 Correct 384 ms 172908 KB Output is correct
78 Correct 453 ms 184192 KB Output is correct
79 Correct 469 ms 195680 KB Output is correct
80 Correct 520 ms 206968 KB Output is correct
81 Correct 62 ms 70716 KB Output is correct
82 Correct 570 ms 218312 KB Output is correct
83 Correct 667 ms 229660 KB Output is correct
84 Correct 745 ms 241024 KB Output is correct
85 Correct 679 ms 252312 KB Output is correct
86 Runtime error 592 ms 262148 KB Execution killed with signal 9
87 Halted 0 ms 0 KB -

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 44 ms 70720 KB Output is correct
2 Correct 44 ms 70776 KB Output is correct
3 Correct 45 ms 70724 KB Output is correct
4 Correct 43 ms 70696 KB Output is correct
5 Correct 44 ms 70724 KB Output is correct
6 Correct 44 ms 70660 KB Output is correct
7 Correct 43 ms 70724 KB Output is correct
8 Correct 46 ms 70680 KB Output is correct
9 Correct 42 ms 70724 KB Output is correct
10 Correct 44 ms 70788 KB Output is correct
11 Correct 46 ms 70764 KB Output is correct
12 Correct 42 ms 70768 KB Output is correct
13 Correct 44 ms 70724 KB Output is correct
14 Correct 42 ms 70716 KB Output is correct
15 Correct 44 ms 70748 KB Output is correct
16 Correct 41 ms 70688 KB Output is correct
17 Correct 46 ms 70724 KB Output is correct
18 Correct 43 ms 70684 KB Output is correct
19 Correct 47 ms 70768 KB Output is correct
20 Correct 51 ms 70728 KB Output is correct
21 Correct 45 ms 70724 KB Output is correct
22 Correct 46 ms 70752 KB Output is correct
23 Correct 44 ms 70752 KB Output is correct
24 Correct 41 ms 70740 KB Output is correct
25 Correct 42 ms 70724 KB Output is correct
26 Correct 43 ms 70812 KB Output is correct
27 Correct 44 ms 70828 KB Output is correct
28 Correct 57 ms 70768 KB Output is correct
29 Correct 44 ms 70768 KB Output is correct
30 Correct 51 ms 70852 KB Output is correct
31 Correct 45 ms 70836 KB Output is correct
32 Correct 49 ms 70840 KB Output is correct
33 Correct 45 ms 70856 KB Output is correct
34 Correct 48 ms 70732 KB Output is correct
35 Correct 54 ms 70852 KB Output is correct
36 Correct 45 ms 71008 KB Output is correct
37 Correct 45 ms 70812 KB Output is correct
38 Correct 48 ms 70888 KB Output is correct
39 Correct 45 ms 70852 KB Output is correct
40 Correct 45 ms 70932 KB Output is correct
41 Correct 48 ms 70988 KB Output is correct
42 Correct 46 ms 70984 KB Output is correct
43 Correct 43 ms 70680 KB Output is correct
44 Correct 49 ms 70772 KB Output is correct
45 Correct 46 ms 70740 KB Output is correct
46 Correct 48 ms 70772 KB Output is correct
47 Correct 48 ms 70724 KB Output is correct
48 Correct 58 ms 70732 KB Output is correct
49 Correct 55 ms 70772 KB Output is correct
50 Correct 62 ms 70656 KB Output is correct
51 Correct 59 ms 70724 KB Output is correct
52 Correct 50 ms 70744 KB Output is correct
53 Correct 54 ms 70768 KB Output is correct
54 Correct 51 ms 70696 KB Output is correct
55 Correct 53 ms 70848 KB Output is correct
56 Correct 54 ms 70780 KB Output is correct
57 Correct 53 ms 70732 KB Output is correct
58 Correct 57 ms 70656 KB Output is correct
59 Correct 58 ms 70748 KB Output is correct
60 Correct 58 ms 70696 KB Output is correct
61 Correct 62 ms 70868 KB Output is correct
62 Correct 57 ms 70716 KB Output is correct
63 Correct 56 ms 70688 KB Output is correct
64 Correct 58 ms 70648 KB Output is correct
65 Correct 52 ms 70768 KB Output is correct
66 Correct 57 ms 70724 KB Output is correct
67 Correct 55 ms 70772 KB Output is correct
68 Correct 54 ms 70756 KB Output is correct
69 Correct 48 ms 70748 KB Output is correct
70 Correct 49 ms 70684 KB Output is correct
71 Correct 64 ms 70724 KB Output is correct
72 Correct 50 ms 70688 KB Output is correct
73 Correct 52 ms 70696 KB Output is correct
74 Correct 54 ms 70704 KB Output is correct
75 Correct 58 ms 70736 KB Output is correct
76 Correct 49 ms 70780 KB Output is correct
77 Correct 52 ms 70768 KB Output is correct
78 Correct 49 ms 70760 KB Output is correct
79 Correct 47 ms 70812 KB Output is correct
80 Correct 45 ms 70816 KB Output is correct
81 Correct 46 ms 70724 KB Output is correct
82 Correct 46 ms 70840 KB Output is correct
83 Correct 47 ms 70724 KB Output is correct
84 Correct 45 ms 70812 KB Output is correct
85 Correct 46 ms 70728 KB Output is correct
86 Correct 44 ms 70848 KB Output is correct
87 Correct 47 ms 70876 KB Output is correct
88 Correct 49 ms 70732 KB Output is correct
89 Correct 50 ms 70812 KB Output is correct
90 Correct 45 ms 70816 KB Output is correct
91 Correct 46 ms 70876 KB Output is correct
92 Correct 45 ms 70776 KB Output is correct
93 Correct 44 ms 70864 KB Output is correct
94 Correct 44 ms 70760 KB Output is correct
95 Correct 49 ms 70908 KB Output is correct
96 Correct 45 ms 70660 KB Output is correct
97 Correct 49 ms 70656 KB Output is correct
98 Correct 47 ms 70724 KB Output is correct
99 Correct 48 ms 70760 KB Output is correct

Subtask #4
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 44 ms 70720 KB Output is correct
2 Correct 44 ms 70776 KB Output is correct
3 Correct 45 ms 70724 KB Output is correct
4 Correct 43 ms 70696 KB Output is correct
5 Correct 44 ms 70724 KB Output is correct
6 Correct 44 ms 70660 KB Output is correct
7 Correct 43 ms 70724 KB Output is correct
8 Correct 46 ms 70680 KB Output is correct
9 Correct 42 ms 70724 KB Output is correct
10 Correct 44 ms 70788 KB Output is correct
11 Correct 46 ms 70764 KB Output is correct
12 Correct 42 ms 70768 KB Output is correct
13 Correct 44 ms 70724 KB Output is correct
14 Correct 42 ms 70716 KB Output is correct
15 Correct 44 ms 70748 KB Output is correct
16 Correct 41 ms 70688 KB Output is correct
17 Correct 46 ms 70724 KB Output is correct
18 Correct 43 ms 70684 KB Output is correct
19 Correct 47 ms 70768 KB Output is correct
20 Correct 51 ms 70728 KB Output is correct
21 Correct 45 ms 70724 KB Output is correct
22 Correct 46 ms 70752 KB Output is correct
23 Correct 44 ms 70752 KB Output is correct
24 Correct 41 ms 70740 KB Output is correct
25 Correct 42 ms 70724 KB Output is correct
26 Correct 43 ms 70812 KB Output is correct
27 Correct 44 ms 70828 KB Output is correct
28 Correct 57 ms 70768 KB Output is correct
29 Correct 44 ms 70768 KB Output is correct
30 Correct 51 ms 70852 KB Output is correct
31 Correct 45 ms 70836 KB Output is correct
32 Correct 49 ms 70840 KB Output is correct
33 Correct 45 ms 70856 KB Output is correct
34 Correct 48 ms 70732 KB Output is correct
35 Correct 54 ms 70852 KB Output is correct
36 Correct 45 ms 71008 KB Output is correct
37 Correct 45 ms 70812 KB Output is correct
38 Correct 48 ms 70888 KB Output is correct
39 Correct 45 ms 70852 KB Output is correct
40 Correct 45 ms 70932 KB Output is correct
41 Correct 48 ms 70988 KB Output is correct
42 Correct 46 ms 70984 KB Output is correct
43 Correct 43 ms 70680 KB Output is correct
44 Correct 49 ms 70772 KB Output is correct
45 Correct 46 ms 70740 KB Output is correct
46 Correct 48 ms 70772 KB Output is correct
47 Correct 48 ms 70724 KB Output is correct
48 Correct 55 ms 70720 KB Output is correct
49 Correct 54 ms 70688 KB Output is correct
50 Correct 58 ms 70728 KB Output is correct
51 Correct 54 ms 70720 KB Output is correct
52 Correct 50 ms 70668 KB Output is correct
53 Correct 50 ms 70672 KB Output is correct
54 Correct 47 ms 70692 KB Output is correct
55 Correct 46 ms 70708 KB Output is correct
56 Correct 48 ms 70664 KB Output is correct
57 Correct 67 ms 70732 KB Output is correct
58 Correct 49 ms 70716 KB Output is correct
59 Correct 48 ms 70728 KB Output is correct
60 Correct 50 ms 70708 KB Output is correct
61 Correct 44 ms 70720 KB Output is correct
62 Correct 51 ms 70760 KB Output is correct
63 Correct 51 ms 70792 KB Output is correct
64 Correct 57 ms 70716 KB Output is correct
65 Correct 51 ms 70772 KB Output is correct
66 Correct 57 ms 70712 KB Output is correct
67 Correct 51 ms 70696 KB Output is correct
68 Correct 84 ms 82012 KB Output is correct
69 Correct 134 ms 93452 KB Output is correct
70 Correct 50 ms 70728 KB Output is correct
71 Correct 164 ms 104720 KB Output is correct
72 Correct 192 ms 116076 KB Output is correct
73 Correct 231 ms 127528 KB Output is correct
74 Correct 272 ms 138872 KB Output is correct
75 Correct 384 ms 150136 KB Output is correct
76 Correct 338 ms 161576 KB Output is correct
77 Correct 384 ms 172908 KB Output is correct
78 Correct 453 ms 184192 KB Output is correct
79 Correct 469 ms 195680 KB Output is correct
80 Correct 520 ms 206968 KB Output is correct
81 Correct 62 ms 70716 KB Output is correct
82 Correct 570 ms 218312 KB Output is correct
83 Correct 667 ms 229660 KB Output is correct
84 Correct 745 ms 241024 KB Output is correct
85 Correct 679 ms 252312 KB Output is correct
86 Runtime error 592 ms 262148 KB Execution killed with signal 9
87 Halted 0 ms 0 KB -