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    <p>I would suggest trying to prototype what you want first in a higher level language such as Python. The following python code does what you desire.</p> <p>You should be able to follow along with this code and find equivalent C methods to accomplish the same tasks. The most complicated part will probably be deciding how to store the player/score pairs (in Python is is trivial, but unfortunately C does not have dictionaries).</p> <pre><code># Equivalent to C/C++ include import sys # Create dictionary to store scores data = {} # Check for existence of scores files try: with open("data.txt", 'r'): pass except IOError: pass with open("data.txt", 'r') as fp: for line in fp: # Split line by ':' parts = line.split(':') # Check that there are two values (name, score) if len(parts) != 2: continue # Remove white-space (and store in temporary variables) name = parts[0].strip() score = parts[1].strip() # Store the name and score in dictionary data[name] = score # Get input from user update_name = raw_input('Enter player name: ') update_score = raw_input('Enter player score: ') # Update score of individual data[update_name] = update_score # Write data to file (and to screen) with open("data.txt", 'w') as fp: for name,score in data.items(): output = "{0} : {1}".format(name,score) print output fp.write(output + '\n') </code></pre> <p>A few tips:</p> <ul> <li><code>fscanf(file, "%s : %d", name, score)</code> to replace most of the <code>split</code> and <code>strip</code> code.</li> <li><code>struct { char* e_name; int e_score; } entry;</code></li> <li>Take a look at this answer for arrays of structs <a href="https://stackoverflow.com/a/260981/2372604">https://stackoverflow.com/a/260981/2372604</a></li> </ul>
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    1. POFile i/o to update the file in C
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