oj.uz

답안 #624395

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
624395 2022-08-08T07:13:41 Z radal Designated Cities (JOI19_designated_cities) C++17
7 / 100
 243 ms 53012 KB 
#include <bits/stdc++.h>
#pragma GCC target("sse,sse2,avx2")
#pragma GCC optimize("unroll-loops,O2")
#define rep(i,l,r) for (int i = l; i < r; i++)
#define repr(i,r,l) for (int i = r; i >= l; i--)
#define X first
#define Y second
#define all(x) (x).begin() , (x).end()
#define pb push_back
#define endl '\n'
#define debug(x) cerr << #x << " : " << x << endl;
using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int,int> pll;
constexpr int N = 2e5+10,mod = 998244353,inf = 1e9+10;
inline int mkay(int a,int b){
    if (a+b >= mod) return a+b-mod;
    if (a+b < 0) return a+b+mod;
    return a+b;
}
 
inline int poww(int a,int k){
    if (k < 0) return 0;
    int z = 1;
    while (k){
        if (k&1) z = 1ll*z*a%mod;
        a = 1ll*a*a%mod;
        k /= 2;
    } 
    return z; 
}

int par[N][20],h[N];
ll opt[N],d[N][2],up[N];
vector<pair<int,pll>> adj[N];
void pre(int v,int p){
    par[v][0] = p;
    for (auto u : adj[v]){
        if (u.X == p) continue;
        h[u.X] = h[v]+1;
        d[u.X][0] = d[v][0]+u.Y.X;
        d[u.X][1] = d[v][1]+u.Y.Y;
        pre(u.X,v);
        up[v] += up[u.X]+u.Y.Y;
    }
}
int main(){
    ios :: sync_with_stdio(0); cin.tie(0);
    memset(opt,63,sizeof opt);
    int n;
    cin >> n;
    ll sum = 0;
    rep(i,1,n){
        int u,v,a,b;
        cin >> u >> v >> a >> b;
        adj[u].pb({v,{a,b}});
        adj[v].pb({u,{b,a}});
        sum += a;
        sum += b;
    }
    if (n == 2){
        int q;
        cin >> q;
        while (q--){
            int t;
            cin >> t;
            if (t == 2){
                cout << 0 << endl;
                continue;
            }
            if (t == 1){
                cout << min(adj[1][0].Y.Y,adj[1][0].Y.X) << endl;
                continue;
            }
        }
        return 0;
    }
    int r = 1;
    rep(i,2,n+1) if (adj[i].size() > 1) r = i;
    pre(r,0);
    rep(j,1,20){
        rep(i,1,n+1){
            par[i][j] = par[par[i][j-1]][j-1];
        }
    }
    rep(i,1,n+1){
        opt[1] = min(opt[1],sum-up[r]+d[i][1]-d[i][0]);
    }
    int q;
    cin >> q;
    cout << opt[1];
    return 0;
}

Subtask #1
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 6484 KB Output is correct
2 Incorrect 4 ms 6484 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 6484 KB Output is correct
2 Correct 237 ms 35928 KB Output is correct
3 Correct 233 ms 50636 KB Output is correct
4 Correct 192 ms 40896 KB Output is correct
5 Correct 218 ms 42212 KB Output is correct
6 Correct 208 ms 44060 KB Output is correct
7 Correct 183 ms 42096 KB Output is correct
8 Correct 243 ms 53012 KB Output is correct
9 Correct 158 ms 41256 KB Output is correct

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 6484 KB Output is correct
2 Incorrect 195 ms 35944 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 6484 KB Output is correct
2 Incorrect 4 ms 6484 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 6484 KB Output is correct
2 Correct 237 ms 35928 KB Output is correct
3 Correct 233 ms 50636 KB Output is correct
4 Correct 192 ms 40896 KB Output is correct
5 Correct 218 ms 42212 KB Output is correct
6 Correct 208 ms 44060 KB Output is correct
7 Correct 183 ms 42096 KB Output is correct
8 Correct 243 ms 53012 KB Output is correct
9 Correct 158 ms 41256 KB Output is correct
10 Correct 3 ms 6484 KB Output is correct
11 Incorrect 195 ms 35944 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #6
0 / 44.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 6484 KB Output is correct
2 Incorrect 4 ms 6484 KB Output isn't correct
3 Halted 0 ms 0 KB -