Submission #25777

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
25777	2017-06-24 06:06:01	khsoo01	전압 (JOI14_voltage)	C++11	100 / 100	516 ms	32932 KiB

voltage

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#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pll;
const ll N = 100005, M = 200005, L = 20;
ll n, m, col[N], dep[N], par[L][N], cap[N], tot, ans;
vector<ll> adj[N];
vector<pll> ex;
struct disj {
  ll par[N], con;
  void init () {
    for(ll i=1;i<=n;i++) par[i] = i;
    con = 0;
  }
  ll Find (ll X) {
    if(par[X] == X) return X;
    return par[X] = Find(par[X]);
  }
  bool Union (ll A, ll B) {
    A = Find(A); B = Find(B);
    if(A == B) return false;
    par[A] = B; con++;
    return true;
  }
} ds;
ll getlca (ll A, ll B) {
 
 
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Compilation message (stderr)

voltage.cpp: In function 'int main()':
voltage.cpp:69:12: warning: unused variable 'V' [-Wunused-variable]
   ll A, B, V;
            ^
voltage.cpp:66:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%lld",&n,&m);
                         ^
voltage.cpp:70:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld%lld",&A,&B);
                          ^

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 35 / 35
• Subtask 4: 45 / 45