oj.uz

답안 #865024

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
865024 2023-10-24T02:35:50 Z LittleOrange Designated Cities (JOI19_designated_cities) C++17
7 / 100
 186 ms 44468 KB 
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
struct obj{
    ll to,c0,c1;// to, back
};
int main(){
    ios::sync_with_stdio(0);cin.tie(0);
    ll n,q;
    cin >> n;
    vector<vector<obj>> con(n);
    ll tot = 0;
    for(ll i = 1;i<n;i++){
        ll a,b,c,d;
        cin >> a >> b >> c >> d;a--;b--;
        con[a].push_back({b,c,d});
        con[b].push_back({a,d,c});
        tot += c+d;
    }
    cin >> q;
    vector<ll> dp(n,0);
    {
        function<ll(ll,ll)> dfs;
        dfs = [&](ll i, ll p){
            ll cur = 0;
            for(obj l : con[i]){
                if (l.to!=p){
                    cur += l.c1 + dfs(l.to,i);
                }
            }
            return cur;
        };
        dp[0] = dfs(0,-1);
    }
    {
        function<void(ll,ll,ll)> dfs;
        dfs = [&](ll i, ll p, ll v){
            dp[i] = v;
            for(obj l : con[i]){
                if (l.to!=p){
                    dfs(l.to,i,v+l.c0-l.c1);
                }
            }
        };
        dfs(0,-1,dp[0]);
    }
    while(q--){
        ll e;
        cin >> e;
        if (e==1){
            ll ans = 0;
            for(ll i : dp) ans = max(i,ans);
            ans = tot-ans;
            cout << ans << "\n";
        }
    }
}

Subtask #1
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 130 ms 26076 KB Output is correct
3 Correct 186 ms 44068 KB Output is correct
4 Correct 127 ms 24660 KB Output is correct
5 Correct 125 ms 25860 KB Output is correct
6 Correct 138 ms 28836 KB Output is correct
7 Correct 115 ms 25084 KB Output is correct
8 Correct 167 ms 44468 KB Output is correct
9 Correct 101 ms 24120 KB Output is correct

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 130 ms 26076 KB Output is correct
3 Correct 186 ms 44068 KB Output is correct
4 Correct 127 ms 24660 KB Output is correct
5 Correct 125 ms 25860 KB Output is correct
6 Correct 138 ms 28836 KB Output is correct
7 Correct 115 ms 25084 KB Output is correct
8 Correct 167 ms 44468 KB Output is correct
9 Correct 101 ms 24120 KB Output is correct
10 Incorrect 0 ms 344 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #6
0 / 44.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -