oj.uz

답안 #376810

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
376810 2021-03-12T04:39:44 Z jass921026 Designated Cities (JOI19_designated_cities) C++14
100 / 100
 478 ms 50924 KB 
#include<bits/stdc++.h>
using namespace std;
#define jizz ios_base::sync_with_stdio(false);cin.tie(NULL);
typedef long long ll;
typedef pair<ll,ll> pii;
#define F first
#define S second
const int MAXN=2E5+10;
vector<pii> G[MAXN];
ll sum[MAXN], sum2[MAXN], path[MAXN], nxt[MAXN], ans[MAXN];
void init(int x, int f){
    for(auto i:G[x]){
        if(i.F!=f){
            init(i.F,x);
        } else{
            sum[1]+=i.S;
        }
    }
}
void getSum(int x, int f, ll s){
    ll maxpath=0, secpath=0;
    for(auto i:G[x]){
        if(i.F==f){
            sum[x]=s-i.S;
            break;
        }
    }
    for(auto i:G[x]){
        if(i.F!=f){
            getSum(i.F,x,sum[x]+i.S);
            ll cp=path[i.F]+i.S;
            if(cp>maxpath){
                nxt[x]=i.F;
                secpath=maxpath;
                maxpath=cp;
            } else{
                secpath=max(secpath,cp);
            }
        }
    }
    path[x]=maxpath;
    sum2[x]=sum[x]+maxpath+secpath;
}
void getNewPath(int x, int f){
    for(auto i:G[x]){
        if(i.F!=f){
            getNewPath(i.F,x);
            ll cp=path[i.F]+i.S;
            if(cp>path[x]){
                path[x]=cp;
                nxt[x]=i.F;
            }
        }
    }
}
priority_queue<ll> pq;
void getPQ(int x, int f, int t, ll s){
    if(x==t) pq.push(s+path[x]);
    for(auto i:G[x]){
        if(i.F==nxt[x]){
            getPQ(i.F,x,t,i.S);
        }
        else if(i.F!=f){
            getPQ(i.F,x,i.F,i.S);
        }
    }
}
int main(){ jizz
    int n;
    cin>>n;
    ll all=0;
    for(int i=0;i<n-1;i++){
        int a, b, c, d;
        cin>>a>>b>>c>>d;
        G[a].push_back({b,c});
        G[b].push_back({a,d});
        all=all+c+d;
    }
    init(1,0);
    getSum(1,0,sum[1]);
    int newroot=0;
    for(int i=1;i<=n;i++){
        ans[1]=max(ans[1],sum[i]);
        if(sum2[i]>ans[2]){
            ans[2]=sum2[i];
            newroot=i;
        }
    }
    while(nxt[newroot]) newroot=nxt[newroot];
    for(int i=1;i<=n;i++){
        path[i]=0;
        nxt[i]=0;
    }
    //cout<<"nr "<<newroot<<"\n";
    getNewPath(newroot,0);
    getPQ(newroot,0,newroot,0);
    pq.pop();
    for(int i=3;i<=n;i++){
        if(!pq.empty()){
            ans[i]=ans[i-1]+pq.top();
            pq.pop();
        } else{
            ans[i]=all;
        }
    }
    int q;
    cin>>q;
    for(int i=0;i<q;i++){
        int e;
        cin>>e;
        cout<<all-ans[e]<<"\n";
    }
    return 0;
}
/*
6
1 6 6 12
6 2 5 16
1 4 13 4
5 1 19 3
3 1 9 13
3
1
2
3
*/

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 5248 KB Output is correct
2 Correct 4 ms 5100 KB Output is correct
3 Correct 4 ms 5100 KB Output is correct
4 Correct 4 ms 5120 KB Output is correct
5 Correct 4 ms 5100 KB Output is correct
6 Correct 4 ms 5100 KB Output is correct
7 Correct 4 ms 5100 KB Output is correct
8 Correct 4 ms 5120 KB Output is correct
9 Correct 4 ms 5100 KB Output is correct
10 Correct 4 ms 5100 KB Output is correct
11 Correct 4 ms 5100 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 5100 KB Output is correct
2 Correct 389 ms 24416 KB Output is correct
3 Correct 401 ms 42880 KB Output is correct
4 Correct 346 ms 24412 KB Output is correct
5 Correct 328 ms 24420 KB Output is correct
6 Correct 364 ms 27104 KB Output is correct
7 Correct 297 ms 25180 KB Output is correct
8 Correct 418 ms 42476 KB Output is correct
9 Correct 228 ms 26452 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 5100 KB Output is correct
2 Correct 348 ms 24556 KB Output is correct
3 Correct 418 ms 44652 KB Output is correct
4 Correct 346 ms 24676 KB Output is correct
5 Correct 332 ms 24420 KB Output is correct
6 Correct 393 ms 27616 KB Output is correct
7 Correct 254 ms 26264 KB Output is correct
8 Correct 386 ms 36324 KB Output is correct
9 Correct 250 ms 26464 KB Output is correct

Subtask #4
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 5248 KB Output is correct
2 Correct 4 ms 5100 KB Output is correct
3 Correct 4 ms 5100 KB Output is correct
4 Correct 4 ms 5120 KB Output is correct
5 Correct 4 ms 5100 KB Output is correct
6 Correct 4 ms 5100 KB Output is correct
7 Correct 4 ms 5100 KB Output is correct
8 Correct 4 ms 5120 KB Output is correct
9 Correct 4 ms 5100 KB Output is correct
10 Correct 4 ms 5100 KB Output is correct
11 Correct 4 ms 5100 KB Output is correct
12 Correct 4 ms 5100 KB Output is correct
13 Correct 6 ms 5356 KB Output is correct
14 Correct 8 ms 5484 KB Output is correct
15 Correct 6 ms 5356 KB Output is correct
16 Correct 6 ms 5356 KB Output is correct
17 Correct 6 ms 5376 KB Output is correct
18 Correct 6 ms 5356 KB Output is correct
19 Correct 5 ms 5356 KB Output is correct
20 Correct 6 ms 5356 KB Output is correct
21 Correct 6 ms 5356 KB Output is correct
22 Correct 6 ms 5356 KB Output is correct
23 Correct 6 ms 5356 KB Output is correct
24 Correct 6 ms 5356 KB Output is correct
25 Correct 8 ms 5484 KB Output is correct
26 Correct 6 ms 5356 KB Output is correct

Subtask #5
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 5100 KB Output is correct
2 Correct 389 ms 24416 KB Output is correct
3 Correct 401 ms 42880 KB Output is correct
4 Correct 346 ms 24412 KB Output is correct
5 Correct 328 ms 24420 KB Output is correct
6 Correct 364 ms 27104 KB Output is correct
7 Correct 297 ms 25180 KB Output is correct
8 Correct 418 ms 42476 KB Output is correct
9 Correct 228 ms 26452 KB Output is correct
10 Correct 4 ms 5100 KB Output is correct
11 Correct 348 ms 24556 KB Output is correct
12 Correct 418 ms 44652 KB Output is correct
13 Correct 346 ms 24676 KB Output is correct
14 Correct 332 ms 24420 KB Output is correct
15 Correct 393 ms 27616 KB Output is correct
16 Correct 254 ms 26264 KB Output is correct
17 Correct 386 ms 36324 KB Output is correct
18 Correct 250 ms 26464 KB Output is correct
19 Correct 4 ms 5100 KB Output is correct
20 Correct 364 ms 24448 KB Output is correct
21 Correct 420 ms 50924 KB Output is correct
22 Correct 371 ms 28904 KB Output is correct
23 Correct 368 ms 30560 KB Output is correct
24 Correct 350 ms 29536 KB Output is correct
25 Correct 380 ms 30492 KB Output is correct
26 Correct 356 ms 29412 KB Output is correct
27 Correct 354 ms 30472 KB Output is correct
28 Correct 381 ms 32996 KB Output is correct
29 Correct 374 ms 30860 KB Output is correct
30 Correct 328 ms 29276 KB Output is correct
31 Correct 295 ms 30428 KB Output is correct
32 Correct 388 ms 42740 KB Output is correct
33 Correct 226 ms 32532 KB Output is correct

Subtask #6
44.0 / 44.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 5248 KB Output is correct
2 Correct 4 ms 5100 KB Output is correct
3 Correct 4 ms 5100 KB Output is correct
4 Correct 4 ms 5120 KB Output is correct
5 Correct 4 ms 5100 KB Output is correct
6 Correct 4 ms 5100 KB Output is correct
7 Correct 4 ms 5100 KB Output is correct
8 Correct 4 ms 5120 KB Output is correct
9 Correct 4 ms 5100 KB Output is correct
10 Correct 4 ms 5100 KB Output is correct
11 Correct 4 ms 5100 KB Output is correct
12 Correct 4 ms 5100 KB Output is correct
13 Correct 389 ms 24416 KB Output is correct
14 Correct 401 ms 42880 KB Output is correct
15 Correct 346 ms 24412 KB Output is correct
16 Correct 328 ms 24420 KB Output is correct
17 Correct 364 ms 27104 KB Output is correct
18 Correct 297 ms 25180 KB Output is correct
19 Correct 418 ms 42476 KB Output is correct
20 Correct 228 ms 26452 KB Output is correct
21 Correct 4 ms 5100 KB Output is correct
22 Correct 348 ms 24556 KB Output is correct
23 Correct 418 ms 44652 KB Output is correct
24 Correct 346 ms 24676 KB Output is correct
25 Correct 332 ms 24420 KB Output is correct
26 Correct 393 ms 27616 KB Output is correct
27 Correct 254 ms 26264 KB Output is correct
28 Correct 386 ms 36324 KB Output is correct
29 Correct 250 ms 26464 KB Output is correct
30 Correct 4 ms 5100 KB Output is correct
31 Correct 6 ms 5356 KB Output is correct
32 Correct 8 ms 5484 KB Output is correct
33 Correct 6 ms 5356 KB Output is correct
34 Correct 6 ms 5356 KB Output is correct
35 Correct 6 ms 5376 KB Output is correct
36 Correct 6 ms 5356 KB Output is correct
37 Correct 5 ms 5356 KB Output is correct
38 Correct 6 ms 5356 KB Output is correct
39 Correct 6 ms 5356 KB Output is correct
40 Correct 6 ms 5356 KB Output is correct
41 Correct 6 ms 5356 KB Output is correct
42 Correct 6 ms 5356 KB Output is correct
43 Correct 8 ms 5484 KB Output is correct
44 Correct 6 ms 5356 KB Output is correct
45 Correct 4 ms 5100 KB Output is correct
46 Correct 364 ms 24448 KB Output is correct
47 Correct 420 ms 50924 KB Output is correct
48 Correct 371 ms 28904 KB Output is correct
49 Correct 368 ms 30560 KB Output is correct
50 Correct 350 ms 29536 KB Output is correct
51 Correct 380 ms 30492 KB Output is correct
52 Correct 356 ms 29412 KB Output is correct
53 Correct 354 ms 30472 KB Output is correct
54 Correct 381 ms 32996 KB Output is correct
55 Correct 374 ms 30860 KB Output is correct
56 Correct 328 ms 29276 KB Output is correct
57 Correct 295 ms 30428 KB Output is correct
58 Correct 388 ms 42740 KB Output is correct
59 Correct 226 ms 32532 KB Output is correct
60 Correct 4 ms 5100 KB Output is correct
61 Correct 396 ms 32916 KB Output is correct
62 Correct 478 ms 50156 KB Output is correct
63 Correct 375 ms 31592 KB Output is correct
64 Correct 420 ms 33248 KB Output is correct
65 Correct 391 ms 31840 KB Output is correct
66 Correct 377 ms 33248 KB Output is correct
67 Correct 376 ms 31844 KB Output is correct
68 Correct 372 ms 33116 KB Output is correct
69 Correct 435 ms 35684 KB Output is correct
70 Correct 410 ms 33632 KB Output is correct
71 Correct 372 ms 32096 KB Output is correct
72 Correct 334 ms 33504 KB Output is correct
73 Correct 442 ms 45048 KB Output is correct
74 Correct 265 ms 36728 KB Output is correct