Submission #592210

#	Time	Username	Problem	Language	Result	Execution time	Memory
592210		farhan132	Packing Biscuits (IOI20_biscuits)	C++17	42 / 100	1089 ms	49888 KiB

biscuits

#include "biscuits.h"
#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
typedef pair<ll , ll> ii;
 
#define ff first
#define ss second
#define pb push_back
#define in insert

unordered_map < ll , ll > mp[61];
vector < ll > a; ll x;

ll DP(ll pos, ll val){
	if(pos >= a.size() && val == 0) return 1;
	if(pos < a.size()){
		val += a[pos];
	}
	if(mp[pos].count(val)) return mp[pos][val];
	ll ret = DP(pos + 1, val / 2);
	if(val >= x){
		ret += DP(pos + 1, (val - x)/2);
	}
	return mp[pos][val] = ret;
}

long long count_tastiness(long long _x, std::vector<long long> _a) {
	for(ll i = 0; i <= 60; i++) mp[i].clear();
	a = _a; x = _x;
	return DP(0, 0);
}

Compilation message (stderr)

biscuits.cpp: In function 'll DP(ll, ll)':
biscuits.cpp:18:9: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |  if(pos >= a.size() && val == 0) return 1;
      |     ~~~~^~~~~~~~~~~
biscuits.cpp:19:9: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |  if(pos < a.size()){
      |     ~~~~^~~~~~~~~~

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