code. compile. run. debug. share.
Source Code
Language
#include<stdio.h>
int main()
{
FILE *fp1,*fp2;
char ch;
int i=0,j=0,t;
fp1=fopen("input.txt","r");
fp2=fopen("output.txt","w");
fseek(fp1,0,2);
t=ftell(fp1);
fseek(fp1,0,0);
char s1[t],s2[t];
while((ch=fgetc(fp1))!=EOF)
{
s1[i]=ch;
i++;
}
s1[i]='\0';
for(i=0;s1[i]!='\0';i++);
for(i--;i>=0;i--)
{
s2[j]=s1[i];
j++;
}
s2[j]='\0';
fputs(s2,fp2);
printf("%s",s2);
fclose(fp1);
fclose(fp2);
return 0;
}
A computer is a machine which helps us to calculate, simulate and store different scenarios. For example, in order to write an e-mail, instead of paper and pen first we use a software (or program) called wordprocessor which helps us enter sentences through keyboard (Input), computer's screen (output) to read, and modem (output/input) to send it to a distant relative, friend, etc.
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Compiling Program...
Standard Input:
Interactive Console
Text
Program is not being debugged. Click "Debug" button to start program in debug mode.
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