Submission #398312

#	Time	Username	Problem	Language	Result	Execution time	Memory
398312		Everule	Packing Biscuits (IOI20_biscuits)	C++14	9 / 100	1098 ms	332 KiB

biscuits

#include "biscuits.h"
using ll = long long;
using namespace std;
ll count_tastiness(ll x, vector<ll> a){
    ll s = 0;
    int k = a.size();
    for(int i=0;i<k;i++) s += a[i] * (1ll<<i);
    ll ans = 0;
    for(ll y=0;y<=s/x;y++){
        ll sum = 0;
        for(int i=0;i<60;i++){
            if(i < k) sum += a[i] * (1ll<<i);
            if(y & (1ll<<i)){
                sum -= x * (1ll<<i);
            }
            if(sum < 0) break;
        }
        ans += (sum >= 0);
    }
    return ans;
}

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