Submission #315280

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
315280	2020-10-22 08:18:56	casperwang	Cat (info1cup19_cat)	C++14	100 / 100	546 ms	20200 KiB

cat

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#include <bits/stdc++.h>
#define int long long
#define pb push_back
#define pii pair<int,int>
#define ff first
#define ss second
using namespace std;
 
const int MAXN = 3000000;
int t, n;
int a[MAXN+1];
int c[MAXN+1];
int p[MAXN+1];
bool need[MAXN+1];
int tmp[MAXN+1];
int cnt;
vector <pii> ans;
void swp(int x, int y) {
  swap(a[n-x+1], a[n-y+1]);
  swap(p[a[n-x+1]], p[a[n-y+1]]);
  swap(a[x], a[y]);
  swap(p[a[x]], p[a[y]]);
}
void solve(int N) {
  for (int i = 1; i <= N; i++) {
    if (need[i]) {
      int t = p[i];
      while (!need[t] && t != i) t = p[t];
 
 
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• Subtask 1: 15 / 15
• Subtask 2: 10 / 10
• Subtask 3: 25 / 25
• Subtask 4: 15 / 15
• Subtask 5: 35 / 35