oj.uz

답안 #943829

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
943829 2024-03-12T01:56:08 Z yeediot Designated Cities (JOI19_designated_cities) C++17
100 / 100
 245 ms 44376 KB 
#pragma GCC optimize("O2")
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define F first
#define S second
#define all(x) x.begin(),x.end()
#define pii pair<int,int>
#define pb push_back
#define sz(x) (int)(x.size())
#define chmin(x,y) x=min(x,y)
#define chmax(x,y) x=max(x,y)
#define vi vector<int>
#define vp vector<pii>
#define vvi vector<vi>
#define ykh mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count())
#define __lg(x) 63-__builtin_clzll(x)
#define pow2(x) (1LL<<x)
void __print(int x) {cerr << x;}
void __print(float x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &x) {cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}

template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? "," : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#ifdef local
void setio(){freopen("/Users/iantsai/Library/Mobile Documents/com~apple~CloudDocs/cpp/Empty.md","r",stdin);}
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
void setio(){}
#define debug(x...)
#endif
const int mxn=2e5+5;
vector<tuple<int,int,int>>adj[mxn];
ll dp[mxn][2];
pair<ll,int> dp2[mxn];
ll dep[mxn];
int p1;
void dfs(int v,int pa){
    for(auto [u,d,d2]:adj[v]){
        if(u==pa)continue;
        dp[u][0]+=dp[v][0]+d;
        dep[u]=dep[v]+d;
        dfs(u,v);
        dp[v][1]+=d2+dp[u][1];
    }
}
ll all;
ll ans[mxn];
void calc(int v,int pa){
    ll mx=0;
    dp2[v].F=dep[v];
    dp2[v].S=v;
    int t1=0;
    for(auto [u,d,d2]:adj[v]){
        if(u==pa)continue;
        dp[u][1]+=dp[v][1]-dp[u][1]-d2;
        calc(u,v);
        if(dp2[v].F+dp2[u].F-2*dep[v]>mx){
            t1=dp2[v].S;
            mx=dp2[v].F+dp2[u].F-2*dep[v];
        }
        dp2[v]=max(dp2[v],dp2[u]);
    }
    ans[1]=min(ans[1],all-dp[v][0]-dp[v][1]);
    if(ans[2]>all-dp[v][0]-dp[v][1]-mx){
        p1=t1;
        ans[2]=all-dp[v][0]-dp[v][1]-mx;
    }
}
ll len[mxn];
int idx;
ll dfs2(int v,int pa){
    vector<ll>temp;
    for(auto [u,d,d2]:adj[v]){
        if(u==pa)continue;
        temp.pb(dfs2(u,v)+d);
    }
    if(sz(temp)==0)return 0;
    auto it=max_element(temp.begin(),temp.end());
    for(auto it2=temp.begin();it2!=temp.end();it2++){
        if(it2==it)continue;
        len[idx++]=*it2;
    }
    return *it;
}
signed main(){
    setio();
    ios::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    int n;
    cin>>n;
    ans[2]=1e18;
    ans[1]=1e18;
    for(int i=1;i<n;i++){
        int a,b,c,d;
        cin>>a>>b>>c>>d;
        adj[a].pb({b,c,d});
        adj[b].pb({a,d,c});
        all+=c+d;
    }
    dfs(1,1);
    calc(1,1);
    ll v=dfs2(p1,p1);
    len[idx++]=v;
    sort(len,len+idx,greater<ll>());
    for(int i=1;i<idx;i++){
        ans[2+i]=ans[1+i]-len[i];
    }
    int q;
    cin>>q;
    while(q--){
        int x;
        cin>>x;
        cout<<ans[x]<<'\n';
    }
}
 /*
 input:
 
 */

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 11608 KB Output is correct
2 Correct 2 ms 11612 KB Output is correct
3 Correct 2 ms 11612 KB Output is correct
4 Correct 2 ms 11608 KB Output is correct
5 Correct 2 ms 11612 KB Output is correct
6 Correct 2 ms 11612 KB Output is correct
7 Correct 2 ms 11612 KB Output is correct
8 Correct 2 ms 11608 KB Output is correct
9 Correct 3 ms 11612 KB Output is correct
10 Correct 3 ms 11612 KB Output is correct
11 Correct 2 ms 11820 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 11608 KB Output is correct
2 Correct 169 ms 24148 KB Output is correct
3 Correct 222 ms 44048 KB Output is correct
4 Correct 167 ms 24244 KB Output is correct
5 Correct 172 ms 24880 KB Output is correct
6 Correct 191 ms 27180 KB Output is correct
7 Correct 139 ms 25864 KB Output is correct
8 Correct 212 ms 43292 KB Output is correct
9 Correct 107 ms 28744 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 11612 KB Output is correct
2 Correct 168 ms 24188 KB Output is correct
3 Correct 208 ms 44008 KB Output is correct
4 Correct 150 ms 24144 KB Output is correct
5 Correct 156 ms 24812 KB Output is correct
6 Correct 183 ms 27988 KB Output is correct
7 Correct 111 ms 27772 KB Output is correct
8 Correct 223 ms 38200 KB Output is correct
9 Correct 118 ms 28152 KB Output is correct

Subtask #4
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 11608 KB Output is correct
2 Correct 2 ms 11612 KB Output is correct
3 Correct 2 ms 11612 KB Output is correct
4 Correct 2 ms 11608 KB Output is correct
5 Correct 2 ms 11612 KB Output is correct
6 Correct 2 ms 11612 KB Output is correct
7 Correct 2 ms 11612 KB Output is correct
8 Correct 2 ms 11608 KB Output is correct
9 Correct 3 ms 11612 KB Output is correct
10 Correct 3 ms 11612 KB Output is correct
11 Correct 2 ms 11820 KB Output is correct
12 Correct 2 ms 11608 KB Output is correct
13 Correct 4 ms 11868 KB Output is correct
14 Correct 4 ms 12160 KB Output is correct
15 Correct 4 ms 11864 KB Output is correct
16 Correct 4 ms 11868 KB Output is correct
17 Correct 4 ms 11868 KB Output is correct
18 Correct 3 ms 11868 KB Output is correct
19 Correct 3 ms 11868 KB Output is correct
20 Correct 3 ms 11868 KB Output is correct
21 Correct 3 ms 11868 KB Output is correct
22 Correct 4 ms 11868 KB Output is correct
23 Correct 3 ms 11868 KB Output is correct
24 Correct 3 ms 11868 KB Output is correct
25 Correct 3 ms 12120 KB Output is correct
26 Correct 4 ms 11868 KB Output is correct

Subtask #5
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 11608 KB Output is correct
2 Correct 169 ms 24148 KB Output is correct
3 Correct 222 ms 44048 KB Output is correct
4 Correct 167 ms 24244 KB Output is correct
5 Correct 172 ms 24880 KB Output is correct
6 Correct 191 ms 27180 KB Output is correct
7 Correct 139 ms 25864 KB Output is correct
8 Correct 212 ms 43292 KB Output is correct
9 Correct 107 ms 28744 KB Output is correct
10 Correct 2 ms 11612 KB Output is correct
11 Correct 168 ms 24188 KB Output is correct
12 Correct 208 ms 44008 KB Output is correct
13 Correct 150 ms 24144 KB Output is correct
14 Correct 156 ms 24812 KB Output is correct
15 Correct 183 ms 27988 KB Output is correct
16 Correct 111 ms 27772 KB Output is correct
17 Correct 223 ms 38200 KB Output is correct
18 Correct 118 ms 28152 KB Output is correct
19 Correct 2 ms 11612 KB Output is correct
20 Correct 159 ms 24276 KB Output is correct
21 Correct 243 ms 44108 KB Output is correct
22 Correct 154 ms 24168 KB Output is correct
23 Correct 161 ms 24216 KB Output is correct
24 Correct 175 ms 24440 KB Output is correct
25 Correct 176 ms 24640 KB Output is correct
26 Correct 156 ms 24336 KB Output is correct
27 Correct 151 ms 24728 KB Output is correct
28 Correct 173 ms 27472 KB Output is correct
29 Correct 166 ms 24144 KB Output is correct
30 Correct 149 ms 25100 KB Output is correct
31 Correct 154 ms 26372 KB Output is correct
32 Correct 208 ms 38620 KB Output is correct
33 Correct 120 ms 28156 KB Output is correct

Subtask #6
44.0 / 44.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 11608 KB Output is correct
2 Correct 2 ms 11612 KB Output is correct
3 Correct 2 ms 11612 KB Output is correct
4 Correct 2 ms 11608 KB Output is correct
5 Correct 2 ms 11612 KB Output is correct
6 Correct 2 ms 11612 KB Output is correct
7 Correct 2 ms 11612 KB Output is correct
8 Correct 2 ms 11608 KB Output is correct
9 Correct 3 ms 11612 KB Output is correct
10 Correct 3 ms 11612 KB Output is correct
11 Correct 2 ms 11820 KB Output is correct
12 Correct 2 ms 11608 KB Output is correct
13 Correct 169 ms 24148 KB Output is correct
14 Correct 222 ms 44048 KB Output is correct
15 Correct 167 ms 24244 KB Output is correct
16 Correct 172 ms 24880 KB Output is correct
17 Correct 191 ms 27180 KB Output is correct
18 Correct 139 ms 25864 KB Output is correct
19 Correct 212 ms 43292 KB Output is correct
20 Correct 107 ms 28744 KB Output is correct
21 Correct 2 ms 11612 KB Output is correct
22 Correct 168 ms 24188 KB Output is correct
23 Correct 208 ms 44008 KB Output is correct
24 Correct 150 ms 24144 KB Output is correct
25 Correct 156 ms 24812 KB Output is correct
26 Correct 183 ms 27988 KB Output is correct
27 Correct 111 ms 27772 KB Output is correct
28 Correct 223 ms 38200 KB Output is correct
29 Correct 118 ms 28152 KB Output is correct
30 Correct 2 ms 11608 KB Output is correct
31 Correct 4 ms 11868 KB Output is correct
32 Correct 4 ms 12160 KB Output is correct
33 Correct 4 ms 11864 KB Output is correct
34 Correct 4 ms 11868 KB Output is correct
35 Correct 4 ms 11868 KB Output is correct
36 Correct 3 ms 11868 KB Output is correct
37 Correct 3 ms 11868 KB Output is correct
38 Correct 3 ms 11868 KB Output is correct
39 Correct 3 ms 11868 KB Output is correct
40 Correct 4 ms 11868 KB Output is correct
41 Correct 3 ms 11868 KB Output is correct
42 Correct 3 ms 11868 KB Output is correct
43 Correct 3 ms 12120 KB Output is correct
44 Correct 4 ms 11868 KB Output is correct
45 Correct 2 ms 11612 KB Output is correct
46 Correct 159 ms 24276 KB Output is correct
47 Correct 243 ms 44108 KB Output is correct
48 Correct 154 ms 24168 KB Output is correct
49 Correct 161 ms 24216 KB Output is correct
50 Correct 175 ms 24440 KB Output is correct
51 Correct 176 ms 24640 KB Output is correct
52 Correct 156 ms 24336 KB Output is correct
53 Correct 151 ms 24728 KB Output is correct
54 Correct 173 ms 27472 KB Output is correct
55 Correct 166 ms 24144 KB Output is correct
56 Correct 149 ms 25100 KB Output is correct
57 Correct 154 ms 26372 KB Output is correct
58 Correct 208 ms 38620 KB Output is correct
59 Correct 120 ms 28156 KB Output is correct
60 Correct 2 ms 11608 KB Output is correct
61 Correct 197 ms 25980 KB Output is correct
62 Correct 244 ms 44376 KB Output is correct
63 Correct 183 ms 25744 KB Output is correct
64 Correct 182 ms 25788 KB Output is correct
65 Correct 179 ms 25424 KB Output is correct
66 Correct 181 ms 25680 KB Output is correct
67 Correct 177 ms 25424 KB Output is correct
68 Correct 181 ms 25784 KB Output is correct
69 Correct 204 ms 29024 KB Output is correct
70 Correct 190 ms 25428 KB Output is correct
71 Correct 175 ms 26424 KB Output is correct
72 Correct 164 ms 27456 KB Output is correct
73 Correct 245 ms 39408 KB Output is correct
74 Correct 133 ms 29660 KB Output is correct