Submission #1202814

#	Time	Username	Problem	Language	Result	Execution time	Memory
1202814		al95ireyiz	September (APIO24_september)	C++20	100 / 100	177 ms	14852 KiB

september

//*** Bismillah ***//
#pragma GCC optimize("O3")
#pragma GCC optimize("fast-math")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("no-stack-protector")
#include <bits/stdc++.h>
using namespace std;
#if !defined(ONLINE_JUDGE) and !defined(EVAL)
#include "template/debug.h"
#else
#define d(x...)
#endif
#define fr first
#define er erase
#define sc second
#define in insert
#define ll long long
#define pb push_back
#define vll vector<ll>
#define pll pair<ll,ll>
#define vvll vector<vll>
#define vpll vector<pll>
#define len(x)(ll)x.size()
#define all(x)x.begin(),x.end()
const ll INF = 1e9;
const ll INFL = 1e18;
const ll MOD = 1e9+7;
// const ll MOD = 998244353;
const ll maxn = 1e5+5;
ll n,m,k=0;
ll cv = 0, say = 0;
vll v[maxn];
ll p[maxn], s[maxn], l[maxn];
ll cut(ll x){
    for(ll i = 0; i < m; i ++){
        ll nw = v[i][x];
        say ++, s[nw] ++;
        while(s[nw] == m and l[nw] == 0){
            say -= m, l[p[nw]] --, nw = p[nw];
        }
    }
    return say == 0;
}
int solve(int N, int M, vector<int> _p, vector<vector<int>> _v){
    n = N, m = M, cv = say = 0;
    memset(l, 0, sizeof(l));
    memset(s, 0, sizeof(s));
    for(ll i = 0; i < n; i ++) p[i] = _p[i], l[p[i]] ++;
    for(ll i = 0; i < m; i ++){ v[i].clear(); for(auto x : _v[i]) v[i].pb(x); }

    for(ll i = 0; i < n - 1; i ++) if(cut(i)) cv ++;
    return cv;
}
// void _(ll tt){
    
// }
// signed main(){
//     ll tm=clock();
//     cin.tie(0)->sync_with_stdio(0);
//     ll t=1;
//     cin>>t;
//     for(ll tt=1;tt<=t;tt++){
//         _(tt);
//     }
//     cerr<<"\n\033[1;31mTime: \033[1;30m" \
//         <<(double)(clock()-tm)/1000000<<"\033[1;32m seconds\n";
// }

• Subtask 1: 11 / 11
• Subtask 2: 14 / 14
• Subtask 3: 5 / 5
• Subtask 4: 9 / 9
• Subtask 5: 5 / 5
• Subtask 6: 11 / 11
• Subtask 7: 9 / 9
• Subtask 8: 11 / 11
• Subtask 9: 9 / 9
• Subtask 10: 16 / 16