Submission #422166

#	Time	Username	Problem	Language	Result	Execution time	Memory
422166		Monchito	Packing Biscuits (IOI20_biscuits)	C++14	9 / 100	1083 ms	332 KiB

biscuits

#include "biscuits.h"
using namespace std;
using ll = long long;

bool can(ll y, ll x, vector<ll> a){
    int n = __builtin_popcountll(y);

    for(int i=0; true; i++){
        if(n == 0) break;
        
        if((y & (1LL<<i)) == 0){ a[i+1] += a[i] / (ll)2; continue; }
        if(a[i] < x) return false;
        
        a[i+1] += (a[i] - x) / (ll)2;
        n--;
    }
    
    return true;
}

ll count_tastiness(ll x, vector<ll> a) {
    ll ret=1;

    vector<ll> b(64, 0);

    for(int i=0; i<(int)a.size(); i++) b[i] = a[i];

    for(ll y = 1; y <= (ll)1e5; y++){
        if(can(y, x, b)) ret++;
    }

	return ret;
}

• Subtask 1: 9 / 9
• Subtask 2: 0 / 12
• Subtask 3: 0 / 21
• Subtask 4: 0 / 35
• Subtask 5: 0 / 23