Submission #112237

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
112237	2019-05-18 03:08:30	thebes	Designated Cities (JOI19_designated_cities)	C++14	100 / 100	705 ms	41764 KiB

designated_cities

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int MN = 2e5+5;
ll N, Q, i, ans[MN], tot, cur, x, y, a, b, dist[MN], w[2*MN], par[MN];
vector<pair<ll,ll>> adj[MN], ord;
struct pq{bool operator()(const pair<ll,ll>&i,const pair<ll,ll>&j){return i.second>j.second;}};
priority_queue<pair<ll,ll>,vector<pair<ll,ll>>,pq> q;
ll meh(ll n,ll p){
    ll cur = 0;
    for(auto v : adj[n]){
        if(v.first==p) continue;
        cur+=w[v.second^1]+meh(v.first,n);
    }
    return cur;
}
void dfs(ll n,ll p){
    ans[1]=max(ans[1],cur);
    for(auto v : adj[n]){
        if(v.first==p) continue;
        cur += w[v.second]-w[v.second^1]; dfs(v.first,n);
        cur -= w[v.second]-w[v.second^1];
    }
}
pair<ll,ll> dfs2(ll n,ll p){
    pair<ll,ll> tmp(n,0);
    for(auto v : adj[n]){
        if(v.first==p) continue;
        auto tt = dfs2(v.first, n);
 
 
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Compilation message (stderr)

designated_cities.cpp: In function 'int main()':
designated_cities.cpp:85:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i=0;i<ord.size();i++){
             ~^~~~~~~~~~~
designated_cities.cpp:39:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(scanf("%lld",&N),i=1;i<N;i++){
         ~~~~~~~~~~~~~~~~^~~~
designated_cities.cpp:40:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld%lld%lld%lld",&x,&y,&a,&b);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
designated_cities.cpp:89:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(scanf("%lld",&Q);Q;Q--){
         ~~~~~^~~~~~~~~~~
designated_cities.cpp:90:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld",&x);
         ~~~~~^~~~~~~~~~~

• Subtask 1: 6 / 6
• Subtask 2: 7 / 7
• Subtask 3: 9 / 9
• Subtask 4: 17 / 17
• Subtask 5: 17 / 17
• Subtask 6: 44 / 44