can u please tell me what is wrong with this code it is giving right output. But wrong answer when ever i submit it.

//code of chef and codes
//http://www.codechef.com/problems/CHODE

#include<stdio.h>
#include<stdlib.h>
#include<iostream>
using namespace std;
void sort( long int arr[26][4]) 
{  int j,temp1,temp2;
    for(int i=0;i<26;i++)
    {
    j=i;
    temp1=arr[j+1][0];
    temp2=arr[j+1][1];
    while(j>=0 && arr[j][1]>temp2)
    {
         arr[j+1][0]=arr[j][0];
         arr[j+1][1]=arr[j][1];
                 j--;
   }
    arr[j+1][0]=temp1;
    arr[j+1][1]=temp2;
    }
}
int main()
{
int t;char ch;
scanf("%d",&t);
    while(t>0)
    {
        long int map[26][4]={0,0,0,0};
        char arr[28]={'\0'},arr1[100000]={'\0'},arr2[100000]={'\0'};
        for(int i=0;i<26;i++)
    {
    map[i][0]=i;
    map[i][2]=i;
        map[i][1]=0;
        map[i][3]=0;        
        }
        scanf("%s",arr);
        cin.get(ch);
        cin.getline(arr1,100000);
        int i=0;
    for(i=0;arr1[i]!='\0';i++)
     {
       if(arr1[i]>='a' && arr1[i]<='z')
         map[int(arr1[i]-'a')][1]++;
           else if(arr1[i]>='A' && arr1[i]<='Z')
                 map[int(arr1[i]-'A')][1]++;
         }
        sort(map);
  for(int i=0;i<26;i++)
  {
  for(int j=0;j<26;j++)
  {
      if(map[j][0]==i)
      {
          map[i][3]=map[j][2];
      break;
      }
  }
  }
 for(i=0;arr1[i]!='\0';i++)
   {
 if(arr1[i]>='a' && arr1[i]<='z')
  arr2[i]=arr[map[map[int(arr1[i])-97][3]][2]];
 else if(arr1[i]>='A' && arr1[i]<='Z')
  arr2[i]=(arr[map[map[int(arr1[i])-65][3]][2]]-32);
 else
  arr2[i]=arr1[i];
   }
 arr2[i]='\0';
printf("%s",arr2);
 t--;
}
}