Submission #619696

#	Time	Username	Problem	Language	Result	Execution time	Memory
619696		ktkerem	Friend (IOI14_friend)	C++17	100 / 100	28 ms	4244 KiB

friend

/*#pragma GCC target ("avx2")
#pragma GCC optimize ("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize ("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")*/
#include<bits/stdc++.h>
#include "friend.h"
/*#include <bits/extc++.h>
using namespace std;
using namespace __gnu_pbds;
template<class T>
using oset = tree<T, null_type, less_equal<T>, rb_tree_tag, tree_order_statistics_node_update>;
/**/
//typedef int ll;
typedef long long ll;
typedef unsigned long long ull;
typedef __int128 vll;
typedef unsigned __int128 uvll;
ll _i=0;
#define ffn(x) _i=x
#define llll std::pair<ll , ll>
#define stitr set<ll>::iterator
#define fora(y,x) for(ll y=_i;x>y;y++)
#define pb push_back
#define pf push_front
#define halo cout << "hello\n"
#define fi first
#define sec second
#define all(a) a.begin() , a.end()
const ll limit = 998244353; 
const ll ous = 1e5 + 7;
const ll dx[4] = {1 , 0 , 0 , -1} , dy[4] = {0,1,-1,0};
ll p[ous] , f[ous];
int findSample(int n , int con[] , int host[] , int op[]){
    fora(i , n){
        p[i] = con[i];
        f[i] = 0;
    }
    for(ll i = n-1;0 < i;i--){
        ll x = host[i];
        if(op[i] == 2){
            p[x] = std::max(p[x] + f[i] ,p[i] + f[x]);
            f[x]+= f[i];
        }
        else if(op[i] == 0){
            f[x] += std::max(f[i] , p[i]);
            p[x] += f[i];
        }
        else{
            p[x] = std::max({p[x] + f[i] , f[x] + p[i] , p[x] + p[i]});
            f[x] += f[i];
        }
    }
    return std::max(p[0] , f[0]);
}

Compilation message (stderr)

friend.cpp:13:1: warning: "/*" within comment [-Wcomment]
   13 | /**/
      |

• Subtask 1: 11 / 11
• Subtask 2: 8 / 8
• Subtask 3: 8 / 8
• Subtask 4: 19 / 19
• Subtask 5: 23 / 23
• Subtask 6: 31 / 31