I am trying to draw a 2d grid array for a battleships game. I need the grid to have a border around each cell, how to do this. so far my code is:
#include<iostream>
using namespace std;
int main(){
int grid[5][5] = {{0}};
[Code] .....
I am trying solve this a problem: [URL] .....
In short:
1. Input is an N x N grid with a non-negative integer in each cell.
2. We can move from one cell to any of its adjacent cell in all four directions.
3. The 'cost' needed to move from one cell to another is the positive difference of their values.
4. We have to find the minimum cost such that we can visit atleast half of the cells with that cost;
I am not being able to think of any solution that runs in time O(N2) or better (N2 because of the size of N, any algorithm worse than it will not run within the time limit) for this problem.
So I need a hint on how to solve this problem optimally.
I'm trying to create a grid using the following characters: !, @, #, $, &.
It's an 8 x 8 grid, and should contain the characters in no particular order (trying to create a Bejeweled-like game).
I already defined the width and length to be 8, so:
#define WIDTH 8
#define LENGTH 8
Code:
void makegrid(char grid[])
{
int j;
int k;
for ( j = -1; j < LENGTH; j++ )
{
for ( k = -1; k < WIDTH; k++ )
{
/* I don't know what to type here anymore :( */
}
} }
I'm trying to draw a 5x5 grid for a battleships game.
How to draw the grid with borders and individual cells.
I'm using dev c++
I have a CScrollView that displays a bitmap and I'm trying to draw a grid that I can turn off and on by check box and when the mouse is over a section of the grid that square highlights... I do all the drawing in the ondraw function... But when I have many grid squares it becomes slow to scroll and to highlight the square the mouse is over... I'm not sure the best way to go about this and where to place code to speed it up... The bitmap is only loaded once... But in ondraw the grid has to redraw every time scrolled and when mouse moved over a square.. In onmousemove I call invalidate so the square under mouse changes...
View 5 Replies View RelatedI am trying to draw a grid for checkers. I could draw a square at the starting point from origin with the code below(attached the pic below how it looks) however I am not being able to draw a grid when the program runs.
#include "ccc_win.h"
// GameDemo.cpp
// Shows how to place a piece accurately on a grid after a mouse click.
#include "ccc_win.h" // for graphics classes and functions
using namespace std;
int ccc_win_main(void) // main function for graphics program
[Code] ....
For this program i had to create an HTML with the cosine similarities. I got everything, i just need to color in the lowest and highest amount in the table, but I don't know how.
#include <iostream>
#include <fstream>
#include <cstdlib>
#include <iomanip>
#include <string>
#include <cstdio>
using namespace std;
const int ARRAY_OF_ASCII_CODES_SIZE=256;
const int NUMBER_OF_FILES=8;
[Code] .....
how to compare two "cells" in a 2 dimensional array. Im almost sure it's something with in my logic when checking the cells.
#include<iomanip>
#include<iostream>
using namespace std;
int main()
{//variables
int row_count(0);
[code].....
how to extract certain cells for an excel file that is continuously updating. I had a look at [URL] since they provide a .h library that is useful for this situation, but could not find any code.
View 7 Replies View RelatedI'm trying to make a program who increments the value of all cells of an array but when i try to compile i get this error message:
Quote
error: incompatible types when assigning to type "int[9]" from type "int *"
As you can see, the code below calculates the average, sum, number of items, etc, for a list of numbers in two separate files and compares them with one another.
e.g. we will have a text file of 10 numbers;
45
65
24
26
26
36
35
100
109
433
etc...
The problem is that the code will perform calculations on all the numbers in the txt. or csv. file. This is problematic because if there is any text in the file, e.g. headings, then the calculations will not be performed. For instance, suppose that I only wanted to include rows 5-10 in the calculations, how would I specify this in my C++ code?
#include <iostream>
#include <cmath>
#include <math.h>
[Code]....
I wrote a program to compress a file with gzip, which works fine. I also wrote a program to decompress the gzip file, which runs but outputs a blank file.
Code:
main.cpp:
#include "decompress.h"
int main(int argc, const char * argv[]) {
if(argc == 3) {
decompressor(argv[1], argv[2]);
[code].....
My goal is to create a loop that keeps taking user input over and over until the user doesn't enter anything into 'cin >>', leaves the line blank, and simply presses the ENTER key to move on, at which point the program is supposed to break out of the loop and continue on with the rest of program execution. Something like this:
Code:
do {
cout << "
Enter a name: ";
cin >> input1;
if (input1.empty())
[Code] ....
As you can see, I've already tried using the empty() function, but that didn't work, the program simply stays in the loop and doesn't break out, no matter how many times I press enter. It just keeps prompting me to enter a name. I've also tried using something like
Code: if (input1 == "")
but that doesnt work either. How do I break out of this loop?
//#include "stdafx.h"
#include<iostream>
#include<cmath>
using namespace std;
//class declaration
class dayType{
public: int presday;
[Code] ....
So everything works perfectly, well not everything lol. Code compiles successfully without any errors but previous day does not calculate. In a sense that when it asks for number of previous days it returns a blank statement.
For example: Previous number day is: shows nothing
I'm working on a Hash Table implementation and after fixing all the errors and finally getting it to compile and link correctly, I am met with a black screen upon execute.
main.cpp
#include <stdio.h>
#include <string.h>
[Code]....
I tried inserting a debug statement in the main() function to see, and it wouldn't even print out the message "debug me" on the screen.
I am using Code::Blocks on Windows with the mingw32-g++.exe compiler. Here is my build log:
mingw32-g++.exe -Wall -g -c D:MediaDesktopHashElement.cpp -o objDebugElement.o
mingw32-g++.exe -Wall -g -c D:MediaDesktopHashHashTab.cpp -o objDebugHashTab.o
mingw32-g++.exe -Wall -g -c D:MediaDesktopHashmain.cpp -o objDebugmain.o
mingw32-g++.exe -Wall -g -c D:MediaDesktopHashStudent.cpp -o objDebugStudent.o
mingw32-g++.exe -o binDebugHash.exe objDebugElement.o
objDebugHashTab.o objDebugmain.o objDebugStudent.o -mwindows
Output size is 1.06 MB
Process terminated with status 0 (0 minutes, 2 seconds)
0 errors, 0 warnings (0 minutes, 2 seconds)
So I've run into the following problem. My goal is to create a loop that keeps taking user input over and over until the user doesn't enter anything into 'cin >>', leaves the line blank, and simply presses the ENTER key to move on, at which point the program is supposed to break out of the loop and continue on with the rest of program execution. Something like this:
do {
cout << "
Enter a name: ";
cin >> input1;
if (input1.empty()) {
[Code] .....
As you can see, I've already tried using the empty() function, but that didn't work, the program simply stays in the loop and doesn't break out, no matter how many times I press enter. It just keeps prompting me to enter a name. I've also tried using something like
if (input1 == "")
but that doesn't work either. How do I break out of this loop?
I have followed the tutorial here - [URL] .....
This is a tutorial that I have gone through completely with success, but now I am trying to create a different project using the same sort of setup.
When I add my usercontrol to the MainWindow it has none of the buttons/TextBlocks on which I have put on the UserControls - It is just a blank box. What could be causing this?
I have changed the name of the project to [snip] because it has a company name in it...
"NumericControl.xaml"
<UserControl x:Class="[snip].UserControl.View.NumericControl"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
[Code] ....
I have already data in two dimensional matrix but some cell is empty.Now i want to put 0 in blank cell.
View 2 Replies View RelatedWell still working on my project, now the bubble sorting failed. For some reason the first slot in the array is empty and when I attempt to enter a record to access, it just crashes or prints a blank record. Here is my code for the viewing of the record and a SS of the empty array slot.
Code:
void searchRec(void) {
void Printing(int *ver, int *max);
FILE *fPtr;
struct Students vStudnt;
int set;
int ver;
int i = 0;
int fin = 0;
int sel;
char order;
[Code]...
Well I don't see why there is a empty slot, why?
Modify your code by adding your own tests to see if your functions work right. Include at least 6 separate tests, of your choosing.
For example, test the compare function with the first parameter as a blank string -- then with the 2nd as a blank -- then both. Test compare with the first string shorter than the second -- then the other way around. Test your copy function with long strings.
I am struggling with how to use the compare function with a parameter as a blank string. I tried leaving the first parameter blank but doing ("",text) but I don't think that is the correct way of doing this.
#include <cstring>
#include <iostream>
using std::cin;
using std::cout;
using std::endl;
int myStrLen(const char[]); // return length of null-terminated string stored in char array
[Code] ....
My program does compile and counts the number of lines of code, which is LOC: 20. My issue this, according to my code instruction it should not count comments (//) and also shouldn't count blank lines of code. Unfortunately my code is counting // and white space.
What seems to be working is #, all three includes are not being counted. That’s a good sign. I’m using the same technique not to count #. Why isn't working for comments and blank lines? I’m pretty sure that my logic is correct. I think my problem is maybe syntax.
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int main() {
//read my file
[code]....
I am having trouble returning use input from iterations after the first series of input from the user. My readCourseArray function can only have one parameter and it is information from the structure Student. This information is gathered from a function which is not in the code below because it works fine. I have hard coded a few lines to try to figure out why I am not getting any input after the first pass of the readCourseArray function. I have tried to delete the tempArray in the function after each pass assuming that that could be the issue. But it was not. At least from what I have gathered. I have tried ignoring new line characters which I never really though was an issue but I tried anyways.
I guess what I am asking is: Is my problem coming from the function itself or from my assignment of the cArray to the return tempArray values?
Like I said, the first pass will print out all of the user input (if I put the code in) but all others will return bad values. I did have a do/while to print out the values but it caused the program to crash. I assume because it hit a bad value and needed to break.
#include <iostream>
#include <string>
using namespace std;
struct Student {
string firstName, lastName, aNumber;
int numberCourses;
double GPA;
[Code] .....
I have faced a strange problem in File Save Routine. I have written a module to save data to binary file . I have designed a structure and put information in that and save it to file . I save multiple such records one after other. I use fwrite , fflush instructions.
The module is working fine. I have saved near about 35 such files. But in one file , the module has saved Blank Records. The file size if perfect but the file is totally blank. It has happened for only one file but need to know the reason.
I have to make a 8-puzzle and I got the algorithm i just dont know how to restart the program every time i type the move of the blank place in the 3x3 puzzle so i dont have to make 10000 lines to solve the puzzle
View 2 Replies View RelatedI'm making some progress. My program does compile and output the number of line per code, but it shouldn't count comments and blank lines. I tried using (s.substr(0,2) == "//") as suggested but it didn't work.
This is my improved code:
Code:
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
const int A = 3;
int main() {
string s;
[code].....
I tested my count funtion. So my count function is not working properly, it should return 5 because 5 words have prefix "tal," but it is giving me 10. It's counting blank nodes.
This is my main.cpp file
int main() {
string word;
cout<<"Enter a word"<<endl;
cin >> word;
string filename;
[Code] .....