Write a program to sort the lines according to their length in a file.
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include"fileinfo.h"
void Sort_Accordig_to_Line_Length(FILE*,char*);
int main()
{
FILE *fp;
char file[32];
printf("Enter file name = ");
scanf("%[^\n]",file);
fp = fopen(file,"r");
if(fp == NULL)
{
printf("file is not present in this directoty\n");
return 0;
}
Sort_Accordig_to_Line_Length(fp,file);
return 0;
}
void Sort_Accordig_to_Line_Length(FILE *fp,char *name)
{
char **p,ch,temp[100],*t;
int j,i,LineCount,StrLenMax;
LineCount = Get_Total_Lines(fp);
StrLenMax = Get_Max_String_Length(fp);
printf("%d %d\n",LineCount,StrLenMax);
p = (char**)malloc(sizeof(char*) * LineCount);
for(i = 0; i < LineCount;i++)
{
p[i] = (char*)malloc(StrLenMax+1);
fgets(p[i],StrLenMax+1,fp);
}
t = (char*)malloc(sizeof(StrLenMax+1));
for(i = 0;i < LineCount;i++)
{
for(j = i + 1; j < LineCount;j++)
{
if((strlen(p[i])) > (strlen(p[j])))
{
t = p[i];
p[i] = p[j];
p[j] = t;
}
}
}
fclose(fp);
fp = fopen(name,"w");
for(i = 0;i< LineCount;i++)
{
//fprintf(fp,"%s\n",p[i]);
fputs(p[i],fp);
}
fclose(fp);
printf("Sorting Done....\n");
}
Note: File named d1 is present in the current working directory.
Output
cat d1 Lot To Learn BlackBerry Z10 Iphone Incredible India
Output
./a.out Enter file name = d1 4 17 Sorting Done....
cat d1 Iphone Lot To Learn BlackBerry Z10 Incredible India