Help with FCTRL - C++

help
1

So the code runs fine on my computer, however when I submit it I get a wrong answer. Could anyone point out where I’m making a mistake.

#include <bits/stdc++.h>
using namespace std;

int main(void)
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(0);

    int count, temp, num, t_cases = 0;
    int i = 0;
    cin >> t_cases;

    while (t_cases--)
    {
        cin >> num;
        while (i <= num)
        {
            temp = i;
            while (temp > 0 && temp % 5 == 0)
            {
                temp = temp / 5;
                count++;
            }

            i += 5;
        }

        cout << count << endl;
    }
    return 0;
}

6
3
60
100
1024
23456
8735373
0
14
24
253
5861
2183837

I’m getting an output wrong message.

2

Hi @vishaal_02, Your logic is perfectly fine. Just set count and i variables to 0 in the starting of test case while loop, so that previous test case values or garbage values don’t affect the answer.

3

Yet another case where the compiler tells you at least part of what’s going wrong:

[simon@simon-laptop][12:12:34]
[~/devel/hackerrank/otherpeoples]>./compile-latest-cpp.sh 
Compiling vishaal_02-FCTRL.cpp
Executing command:
  g++ -std=c++17 vishaal_02-FCTRL.cpp -O3 -g3 -Wall -Wextra -Wconversion -DONLINE_JUDGE -D_GLIBCXX_DEBUG    -fsanitize=undefined -ftrapv
vishaal_02-FCTRL.cpp: In function ‘int main()’:
vishaal_02-FCTRL.cpp:29:17: warning: ‘count’ may be used uninitialized in this function [-Wmaybe-uninitialized]
   29 |         cout << count << endl;
      |                 ^~~~~
Successful
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