Not sorting zero

This is the problem I am trying to solve:

https://www.codechef.com/problems/ENTEXAM

This is my solution:

https://www.codechef.com/viewsolution/19393110

When I compile my solution, I am getting wrong answer. While trying to figure out why, I noticed that when I am sorting the total score in ascending order, it doesn't sort 0. Why is this the case?

The code below gives only the output of total score in ascending order

#include<iostream>

int main()
{
int N, K, E, M, T, i, k, j, s[4], L[10000], temp;
std::cin >> T;

for (i = 0; i < T; i++)
{
  std::cin >> N >> K >> E >> M;
  for (j = 0; j < N; j++)
  {
   if (j != N - 1)
   {
    L[j] = 0;
    for (k = 0; k < E; k++)
    {
     std::cin >> s[k];
    }
    for (k = 0; k < E; k++)
    {
     L[j] = L[j] + s[k];
    }
   }
   else
   {
    L[j] = 0;
    for (k = 0; k < E - 1; k++)
    {
     std::cin >> s[k];
    }
    for (k = 0; k < E - 1; k++)
    {
     L[j] = L[j] + s[k];
    }
   }
  }
  for (j = 0; j < N-2; j++)
  {
   for (k = j + 1; k < N - 2; k++)
   {
    if (L[j] >= L[k])
    {
     temp = L[j];
     L[j] = L[k];
     L[k] = temp;
    }
   }
  }
  for (j = 0; j < N; j++)
   std::cout << L[j] << std::endl;

}
system("pause");
std::cin.get();
}

codechef

Asked by: Abhinav_Lugun on April 7, 2019, 6:34 p.m. Last updated on April 7, 2019, 6:34 p.m.

1 Answer(s)

try to run last two loops up to n-2 and to optimize your code, use some nlogn sorting algorithm such as merge sort, heap sort.

you can also use stl for sorting. please visit: https://www.geeksforgeeks.org/sort-c-stl/

rishup132 last updated on April 7, 2019, 6:34 p.m. 0 Reply Upvote

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Not sorting zero

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