Submission #932702

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
932702	2024-02-24 03:45:59	nguyentunglam	Permutation (APIO22_perm)	C++17	100 / 100	6 ms	460 KiB

perm

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#include<bits/stdc++.h>
#define fi first
#define se second
#define endl "\n"
#define ii pair<int, int>
using namespace std;
const long long inf = 2e18;
long long calc (vector<int> a) {
  vector<long long> f(a.size());
  long long ret = 1;
  for(int i = 0; i < a.size(); i++) {
    f[i] = 1;
    for(int j = 0; j < i; j++) if (a[j] < a[i]) f[i] = min(inf, f[i] + f[j]);
    ret += f[i];
  }
  return ret;
}
vector<int> get (vector<int> p) {
  vector<int> rrh = p;
  sort(rrh.begin(), rrh.end());
  rrh.resize(unique(rrh.begin(), rrh.end()) - rrh.begin());
  auto get = [&] (int x) {
    return lower_bound(rrh.begin(), rrh.end(), x) - rrh.begin();
  };
  for(auto &j : p) j = get(j);
 
 
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Compilation message (stderr)

perm.cpp: In function 'long long int calc(std::vector<int>)':
perm.cpp:13:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |   for(int i = 0; i < a.size(); i++) {
      |                  ~~^~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 90 / 90