Submission #1205288

#	Time	Username	Problem	Language	Result	Execution time	Memory
1205288		notme	Packing Biscuits (IOI20_biscuits)	C++20	0 / 100	1 ms	324 KiB

biscuits

#include "biscuits.h"
#include <bits/stdc++.h>
using namespace std;
long long cnt[64], has[64];
long long count_tastiness(long long x, std::vector<long long> a)
{
    int k = a.size();
    for (int i = 0; i < k; ++ i)
    {
        cnt[i] = a[i];
    }
    for (int i = 0; i < 64; ++ i)
    {
        if(cnt[i])has[i] = 1;
        if(cnt[i] > 1)cnt[i+1] += cnt[i]/2;
        cnt[i] %= 2;
    }
    long long all = 0;
    for (int i = 0; i <= 64; ++ i)
        if(has[i])all ++;
    long long ans = 1;
    for (int i = 0; i < all; ++ i)
        ans *= 2;
	return ans;
}

Compilation message (stderr)

biscuits.cpp: In function 'long long int count_tastiness(long long int, std::vector<long long int>)':
biscuits.cpp:20:17: warning: iteration 64 invokes undefined behavior [-Waggressive-loop-optimizations]
   20 |         if(has[i])all ++;
      |            ~~~~~^
biscuits.cpp:19:23: note: within this loop
   19 |     for (int i = 0; i <= 64; ++ i)
      |                     ~~^~~~~

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