Hi everyone, I'm taking a very basic C programming course, but I'm not very good at it. I was wondering if anyone could help me out with my assignment:
I have to give a file containing some data, write a program that reads the data from the file and prints it on the screen as it is, along with the line numbers.
Sample
Assume that the file test.txt contains the following data
Hello how are you?
ac39232
Enter the name of the file: test.txt
1. Hello how are you?
2. ac39232
Any ideas?
Well, since it's an assignment, we can't give much information. Study your File I/O. As for the line number, I can give you a hint.
There is a special character at the end of each line in the file. When you hit that character, it means you're starting a new line in the file. Do you know what it is? Read in a string until you encounter this character, output the current line number, the line you just read, and then increment the line counter.
Sent from my iPadŽ
Or better yet, try fgets().
dwk
Seek and ye shall find. quaere et invenies.
"Simplicity does not precede complexity, but follows it." -- Alan Perlis
"Testing can only prove the presence of bugs, not their absence." -- Edsger Dijkstra
"The only real mistake is the one from which we learn nothing." -- John Powell
Other boards: DaniWeb, TPS
Unofficial Wiki FAQ: cpwiki.sf.net
My website: http://dwks.theprogrammingsite.com/
Projects: codeform, xuni, atlantis, nort, etc.
First, we'd like to see you try. Since it's an assignment, you should have an idea from class on how to go about it. Just post something you've done; doesn't matter if it doesn't work. The important thing is that you tried.
If you weren't paying attention in class and expect us to do it for you, forget it.
Code:#include <stdio.h> void J(char*a){int f,i=0,c='1';for(;a[i]!='0';++i)if(i==81){ puts(a);return;}for(;c<='9';++c){for(f=0;f<9;++f)if(a[i-i%27+i%9 /3*3+f/3*9+f%3]==c||a[i%9+f*9]==c||a[i-i%9+f]==c)goto e;a[i]=c;J(a);a[i] ='0';e:;}}int main(int c,char**v){int t=0;if(c>1){for(;v[1][ t];++t);if(t==81){J(v[1]);return 0;}}puts("sudoku [0-9]{81}");return 1;}
Agreed - start a new thread with your attempt.
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
