Submission #987309

#	Time	Username	Problem	Language	Result	Execution time	Memory
987309		AdamGS	Packing Biscuits (IOI20_biscuits)	C++17	0 / 100	1 ms	348 KiB

biscuits

#include "biscuits.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
vector<ll>T;
map<pair<ll,ll>,ll>mp;
ll x;
ll solve(ll a, ll b) {
  if(a==T.size()) return 1;
  b+=T[a];
  if(mp.find({a, b})!=mp.end()) return mp[{a, b}];
  if(a==T.size()) return 1;
  mp[{a, b}]=solve(a+1, b/2);
  if(b>=x) mp[{a, b}]+=solve(a+1, (b-x)/2);
  return mp[{a, b}];
}
ll count_tastiness(ll _x, vector<ll>_T) {
  mp.clear();
  T=_T;
  x=_x;
  return solve(0, 0);
}

Compilation message (stderr)

biscuits.cpp: In function 'll solve(ll, ll)':
biscuits.cpp:14:7: 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]
   14 |   if(a==T.size()) return 1;
      |      ~^~~~~~~~~~
biscuits.cpp:17:7: 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]
   17 |   if(a==T.size()) return 1;
      |      ~^~~~~~~~~~

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