Submission #63155

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
63155	2018-08-01 01:27:33	khsoo01	One-Way Streets (CEOI17_oneway)	C++11	100 / 100	219 ms	44988 KiB

oneway

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#include<bits/stdc++.h>
#define X first
#define Y second
using namespace std;
typedef pair<int,int> pii;
const int N = 100005;
int n, m, q, ans[N], dep[N], p[N], dir[N];
bool vis[N], bc[N];
vector<int> adj[N];
vector<pii> edg;
struct disj {
  int par[N];
  void init () {iota(par, par+n+1, 0);}
  int Find (int X) {
    if(par[X] == X) return X;
    return par[X] = Find(par[X]);
  }
  void Union (int A, int B) {
    A = Find(A); B = Find(B);
    if(A == B) return;
    par[A] = B;
  }
} uf;
void calc (int C, int P) {
  if(vis[C]) return;
  vis[C] = true;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

oneway.cpp: In function 'int main()':
oneway.cpp:37:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&m);
  ~~~~~^~~~~~~~~~~~~~
oneway.cpp:40:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&A,&B);
   ~~~~~^~~~~~~~~~~~~~
oneway.cpp:49:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&q);
  ~~~~~^~~~~~~~~
oneway.cpp:52:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&A,&B);
   ~~~~~^~~~~~~~~~~~~~

• Subtask 1: 30 / 30
• Subtask 2: 30 / 30
• Subtask 3: 40 / 40