Submission #709216

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
709216	2023-03-13 08:32:02	Dan4Life	Election Campaign (JOI15_election_campaign)	C++17	10 / 100	87 ms	12016 KiB

election_campaign

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#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define int long long
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) a.begin(),a.end()
const int mxN = (int)1e5+10;
const int LINF = (int)1e18;
int n, m, x, y;
vector<int> adj[mxN];
int node[mxN], dp[mxN];
struct road{ int a, b, c; };
road v[mxN];
bool dfs(int s, int t, int v, int p){
    if(s==t) return true;
    for(auto u : adj[s]){
        if(u==p) continue;
        if(dfs(u,t,v,s)){ node[u]+=v; return 1; }
    }
    return 0;
}
void add(int s, int t, int v){
    // this can be done in O(logN) or O(1) with sparse tables...
    node[s]+=v; dfs(s,t,v,-1);
}
 
 
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Compilation message (stderr)

election_campaign.cpp: In function 'int32_t main()':
election_campaign.cpp:50:13: warning: unused variable 'a' [-Wunused-variable]
   50 |         int a = v[i].a, b = v[i].b, c = v[i].c;
      |             ^

• Subtask 1: 0 / 10
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 0 / 30
• Subtask 5: 0 / 10
• Subtask 6: 0 / 40