Submission #780858

#	Time	Username	Problem	Language	Result	Execution time	Memory
780858		Josia	Packing Biscuits (IOI20_biscuits)	C++17	0 / 100	1 ms	340 KiB

biscuits

#include "biscuits.h"

#include <bits/stdc++.h>

using namespace std;

#define int long long

long long count_tastiness(long long x, std::vector<long long> a) {
	vector<int> b(100, 0);


	int carry = 0;
	for (int i = 0; i<b.size(); i++) {
		carry /= 2;

		int here = carry+(i<a.size()?a[i]:0);

		if (here == 0) continue;

		if (here%2==0) {
			b[i] = 2;
			carry = here - 2;
		} else {
			b[i] = 1;
			carry = here - 1;
		}
	}


	// for (int i: b) cerr << i << " ";
	// cerr << "\n";
	

	int res = 1;

	bool cont = 1;

	int lastCont = 0;

	int addup = 0;

	for (int i=0; i<62; i++) {
		if (!b[i]) {cont = 0; lastCont = 0; continue;}

		if (!cont) {
			res += addup;
			addup = 0;
		}

		if (cont) {
			res *= 2;
			if (b[i] == 2) addup += 1<<lastCont;
			lastCont ++;
		}
		cont = 1;
	}

	res += addup;


	return res;
}

Compilation message (stderr)

biscuits.cpp: In function 'long long int count_tastiness(long long int, std::vector<long long int>)':
biscuits.cpp:14:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |  for (int i = 0; i<b.size(); i++) {
      |                  ~^~~~~~~~~
biscuits.cpp:17:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |   int here = carry+(i<a.size()?a[i]:0);
      |                     ~^~~~~~~~~

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