Submission #1082789

#	Time	Username	Problem	Language	Result	Execution time	Memory
1082789		beaconmc	Packing Biscuits (IOI20_biscuits)	C++14	0 / 100	1084 ms	760 KiB

biscuits

#include "biscuits.h"
#include <bits/stdc++.h>
 
typedef long long ll;
#define FOR(i,x,y) for(ll i=x; i<y; i++)
#define FORNEG(i,x,y) for(ll i=x; i>y; i--)
 
using namespace std;

long long count_tastiness(long long x, std::vector<long long> a) {
	
	ll ans = 0;
	FOR(i,0,30) a.push_back(0);
	FOR(i,0,a.size()-1){
		while (a[i]>2) a[i+1] += 1, a[i] -= 2;
	}


	vector<ll> temp = a;
	if (x>100005) return 1;



	FOR(req,0,100005/x + 2){


		a = temp;
		bool flag = false;
		ll cnt = 0;

		FOR(k,0,x){

			ll sus = 0;



			FORNEG(i,a.size()-1, -1){

				while (sus + (1<<i) <= req && a[i]){
					sus += (1<<i), a[i]--;
				}
			}

			if (sus != req){
				flag = true;
				break;
			}

		}

		if (!flag)ans++;
	}

	return ans;



}

Compilation message (stderr)

biscuits.cpp: In function 'long long int count_tastiness(long long int, std::vector<long long int>)':
biscuits.cpp:5:33: 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]
    5 | #define FOR(i,x,y) for(ll i=x; i<y; i++)
......
   14 |  FOR(i,0,a.size()-1){
      |      ~~~~~~~~~~~~~~              
biscuits.cpp:14:2: note: in expansion of macro 'FOR'
   14 |  FOR(i,0,a.size()-1){
      |  ^~~
biscuits.cpp:29:6: warning: unused variable 'cnt' [-Wunused-variable]
   29 |   ll cnt = 0;
      |      ^~~

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