Submission #1129373

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1129373	2024-12-24 12:36:44	mnbvcxz123	Teleporters (IOI08_teleporters)	C++20	100 / 100	243 ms	14292 KiB

teleporters

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#include <stdio.h>
#include <queue>
using namespace std;
const int maxp = 2e6 + 1;
int tel[2000005], n, m;
bool vis[2000005];
priority_queue<int> pq;
int main(){
  vis[maxp] = 1;
  for(int i=0; i<maxp; i++){
    tel[i] = i+1;
  }
  scanf("%d %d",&n,&m);
  for(int i=0; i<n; i++){
    int s, e;
    scanf("%d %d",&s,&e);
    tel[s-1] = e;
    tel[e-1] = s;
  }
  int len = -1;
  for(int i=0; i<maxp; i++){
    if(!vis[i]){
      int pos = i, ret = 0;
      while(!vis[pos]){
        vis[pos] = 1;
        if(tel[pos] != pos + 1) ret++;
        pos = tel[pos];
      }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

teleporters.cpp: In function 'int main()':
teleporters.cpp:15:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |         scanf("%d %d",&n,&m);
      |         ~~~~~^~~~~~~~~~~~~~~
teleporters.cpp:18:22: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |                 scanf("%d %d",&s,&e);
      |                 ~~~~~^~~~~~~~~~~~~~~

• 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