Submission #1356759

#	Time	Username	Problem	Language	Result	Execution time	Memory
1356759		Sacharlemagne	비스킷 담기 (IOI20_biscuits)	C++20	0 / 100	1 ms	1092 KiB

biscuits

#include "biscuits.h"

using namespace std;

typedef long long ll;
typedef vector<ll> vll;
ll ans = 0;
vll A;
void backtrack(int ind, ll x, vll &a) {
    if (ind == a.size()-1 && a[ind] < x) return;
    if (a[ind] >= x) {
        ++ans;
        // i must be x
        ll ad = (a[ind]-x)/2;
        a[ind+1] += ad;
        backtrack(ind+1, x, a);
        a[ind+1] -= ad;
    }
    a[ind+1] += a[ind]/2;
    backtrack(ind+1, x, a);
    return;
}

ll count_tastiness(ll x, vll a) {
    ans = 0;
    if (a.size() < 62) a.resize(62);
    backtrack(0, x, a);
    return ans + 1;
}

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