Submission #546478

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
546478	2022-04-07 16:43:37	Pherokung	Teleporters (IOI08_teleporters)	C++14	100 / 100	325 ms	34876 KiB

teleporters

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#include<bits/stdc++.h>
using namespace std;
int n,m,a,b,tp[2000005],vis[2000005],pos,ans,cnt; 
priority_queue<int> pq;
queue<int> q;
vector<int> v;
int main(){
  scanf("%d%d",&n,&m);
  for(int i=1;i<=n;i++){
    scanf("%d%d",&a,&b);
    tp[a] = b;
    tp[b] = a;
  }
  ans = 0;
  vis[2000001] = 1;
  pos = 1;
  while(vis[pos] == 0){
    vis[pos] = 1;
    if(tp[pos] != 0){
      pos = tp[pos] + 1;
      ans++;
    }
    else pos++;
  }
  for(int i=1;i<=2000000;i++){
    if(vis[i] == 0){
      pos = i;
      cnt = 0;
      while(vis[pos] == 0){
        vis[pos] = 1;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

teleporters.cpp: In function 'int main()':
teleporters.cpp:8:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |  scanf("%d%d",&n,&m);
      |  ~~~~~^~~~~~~~~~~~~~
teleporters.cpp:10:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |   scanf("%d%d",&a,&b);
      |   ~~~~~^~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 5 / 5
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• Subtask 20: 5 / 5