Submission #621192

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
621192	2022-08-03 13:56:20	aworue	Permutation (APIO22_perm)	C++17	100 / 100	5 ms	340 KiB

perm

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#include <bits/stdc++.h>
#include <perm.h>
using ll = long long;
//#define int ll
using namespace std;
#define sz(x) (int)(x).size()
#define foru(i, l, r) for(int i = l; i <= r; i++)
#define ford(i, l, r) for(int i = l; i >= r; i--)
#define fi first
#define se second
#define mod 998244353
#define db(x) cerr << __LINE__ << " " << #x << " " << x << "\n"
using vi = vector<int>;
using pi = pair<int, int>;
const int N = 200005;
const ll inf = 2e18;
ll calc(vi v){
  vector<ll> f(sz(v));
  ll sum = 1; 
  foru(i, 0, sz(v) - 1){
    f[i] = 1;
    foru(j, 0, i - 1){
      if(v[j] < v[i]) f[i] += f[j];
      f[i] = min(f[i], inf);
    }
    sum += f[i]; sum = min(sum, inf);
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 90 / 90