c++ - Minesweeper Code error - 


  #include & lt; Iostream & gt; #to & lt include, vector & gt; #include & lt; string & gt; # Include & lt; Algorithm & gt; using namespace std; Int main () {int n, m, counter = 0 ;; CIN & gt; & Gt; N & gt; & Gt; Meter; Four x [n] [m]; Int y [n] [m]; For (int i = 0; i & lt; n; i ++) {for (int j = 0; j & lt; m; j ++) {cin & gt; & Gt; X [i] [j]; // array input}} (int i = 0; i & lt; n; i ++) {for (int j = 0; j & lt; m; j ++) {counter = 0; If (x [ii] [j] == '.') // search for mines (*) {if (x [i] [j-1] == '*') counter ++; If (x [ii] [j + 1] == '*') counter ++; If (x [I-1] [J] == '*') counter ++; If (x [i + 1] [j] == '*') counter ++; If (x [I + 1] [J-1] == '*') Counter ++; If (x [i + 1] [j + 1] == '*') counter ++; If (X [I-1] [J-1] == '*') Counter ++; If (X [I-1] [J + 1] == '*') Counter ++; } If (x [ii] [j]! = '*') Y [i] [j] = counter; // Assign other values ​​y [i] [j] = '*'; }} For (int i = 0; i & lt; n; i ++) {for (int j = 0; j & lt; m; j ++) {if (y [i] [j] == 42) cout & lt; & Lt; '*'; And cout & lt; & Lt; Y [i] [j]; // Output numeric array} cout & lt; & Lt; Endl; } Return 0; }

This is Minesweeper code which has input 

  4 4 * ... .... .... .... ... .

and output 

  * 100 2210 1 * 10 1110

but code output 

  * 101 2210 1 * 10 1110

Turns to zero in the top right What does this do?

And there is one more easy way to find mines (*) without all conditions?

You are reading beyond the memory of the array. When you are on line 0..n-2, you are reading in line, line n-1 , you are reading unreadable memory.

Check that the memory you are using is under proper lines and the array is within range.

Ie 

  if (x [i] [j + 1] == '*')

What if < Code> j == m-1 ? 

  if (x [i-1] [j] == '*')

what if i == 0 ?

The problem is basically two fixes First of all, you can check that i, j are in range, say 

  if (j & lt; m - 1 & amp; amp; x [i] [j + 1] == '*')

this will solve the problem, but Code reuse is bad from perspective. I will write a function, say

char get_at (char ** array, int i, int j, int n, int m) {if (i & Gt; = 0 & amp; i & lt; n & amp; amp; & gt; = 0 & amp; amp; amp; amp; & amp; amp; amp; amp; amp; amp; amp;; & amp; nbsp; m) Return Array [i] [J]; And return '!'; }

This function '!' returns if the index is out of range, it will not be interpreted as a mine.


Comments

Post a Comment

Popular posts from this blog

python - Overriding the save method in Django ModelForm -

I'm having trouble overriding a ModelForm save method. I get this error I'm: Exception type: TypeErier Exception Value: Save () found an unexpected keyword argument 'committed' My intentions include a form 3 fields Submit several values ​​for, then create an object for each combination of those areas, and to save each object file models.py class collarsult type (models.Model): id = model. AutoField (db_column = 'icontact_result_code_type_id', primary_key = true) callResult = models.ForeignKey ( 'CallResult', db_column = 'icontact_result_code_id') campaign = models.ForeignKey ( 'campaign', db_column = 'icampaign_id') CALLTYPE = models.ForeignKey ( 'CALLTYPE', db_column = 'icall_type_id') agent = models.BooleanField (db_column = 'bagent', default = true) teamLeader = models.BooleanField (db_column = 'bTeamLeader', default = true) active = models.BooleanField (db_column = Django.form...
Read more

html - CSS autoheight, but fit content to height of div -

I have a div in which there are three children- div in the left and middle div: float: left while true: float: true because it is my layout Actually will spoil, I've used ClearFix Hack: .cf {zoom: 1; }. Cf: First,. Cf: {content: ""; Display: Table; }. Cf: After {clear: both; } It still works, but I want to be the right div an indicator. So it should fill 100% of the parent unit of height. How can I complete this? PS is the full code: & Lt; / Div & gt; & Lt; Div class = "mobile_content" & gt; & Lt; H5 & gt; {{Data.titel}} & lt; / H5> & Lt; Table & gt; & Lt; TR & gt; & Lt; Th & gt; Komponist: & lt; / Th & gt; & Lt; TD & gt; {{Data.komponist}} & lt; / TD & gt; & Lt; / TR & gt; & Lt; TR & gt; & Lt; Th & gt; Instrument: & lt; / Th & gt; & Lt; TD & gt; {{Data.instrumente}} & lt; / TD & gt; & Lt; / TR & gt;...
Read more

qt - How to prevent QAudioInput from automatically boosting the master volume to 100%? -

I have been trying to use Qt5 multimedia to record audio with QAudioInput, however, when I see If QAudioInput is started, it increases the master volume of my sound device to 100%. How can I prevent QAudioInput from changing the master volume? My current development platform is Linux with PalsAdio (with flat audio disabled). How can I use QAudioInput : QAudioDeviceInfo device_info = QAudioDeviceInfo :: defaultInputDevice (); QAudio format format; Format.setSampleRate (44100); Format.setChannelCount (1); Format.setSampleSize (16); Format.setCodec ("Audio / PCM"); Format.setSampleType (QAudioFormat :: SignedInt); Format.setByteOrder (QAudioFormat :: LittleEndian); Std :: cout & lt; & Lt; Device_info.deviceName (). ToUtf8 (). ConstData () & lt; & Lt; Std :: endl; QAudioInput * default_device = new QAudioInput (device_info, format); QIODevice * default_io_device = default_device-> Start (); a QAudioInput.setVolume () method is not you I ...
Read more