Submission #602245

#	Time	Username	Problem	Language	Result	Execution time	Memory
602245		PiejanVDC	Packing Biscuits (IOI20_biscuits)	C++17	21 / 100	1094 ms	63248 KiB

biscuits

#include "biscuits.h"
#include <bits/stdc++.h>
using namespace std;

long long X;

vector<long long>v;

map<long long, long long>mp[61];

long long dp(int i, long long cnt) {
    if(i == 61)
        return 1;
    if(mp[i].count(cnt))
        return mp[i][cnt];
    long long ret = 0;
    if(cnt + v[i] >= X)
        ret = dp(i+1, (cnt + v[i] - X)/2);
    ret += dp(i+1, (cnt+v[i])/2);
    return mp[i][cnt] = ret;
}

long long count_tastiness(long long x, vector<long long>a) {
    X = x;
    v = a;
    for(int i = a.size() ; i < 61 ; i++)
        v.push_back(0);
    for(int i = 0 ; i < 61 ; i++)
        mp[i].clear();
    return dp(0, 0);
}

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