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CP Introduction to C. And c++?. What will we do?. C vs JAVA Dev-C++ tutorial and your first program C++ structure Reading input/output Flow Control (if, for, while) array function (method) debugging. Hello World (Day 1 Morning). C. JAVA. import java.io.*; class HelloWorldApp { - PowerPoint PPT Presentation
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And c++?
What will we do?C vs JAVADev-C++ tutorial and your first programC++ structureReading input/outputFlow Control (if, for, while)arrayfunction (method)debugging
Hello World (Day 1 Morning)C JAVA
import java.io.*;
class HelloWorldApp { public static void main(String[]
args) { System.out.println("Hello
World!"); }}
#include <stdio.h>
int main(int argc, char* argv[])
{ printf("Hello, CP!\n"); return 0;}
C vs JAVAC code DOES NOT need to be in a class
No filename restrictionC and JAVA have very similar syntax
if, for, while is the sameData type is almost the same (int, char, bool, float, double,
etc)Function and method is the same
For c++, function does not need to be in a class
We don’t really use any class in algorithm :D
Output (printf)printf(format_string, value…);
command What you get
printf(“YES”); YES
printf(“YES %d”,12); YES 12
printf(“%d is more than%d”,24,12); 24 is more than12
printf(“floating point %f”,2.3457); floating point 2.3457
printf(“test\ntest\nhaha”); testtesthaha
printf(“string %s is possible”,”haha”);
string haha is possible
input(scanf)scanf(format_string, &variable…);
Use the same format string
#include <stdio.h>int main() { int age, w; printf("Please enter your age and weight”); scanf("%d %d", &age, &w); printf(“your age = %d \n your weight is %d\n”,age,w);}
Condition Statement If statement
The same as java#include <stdio.h>int main()
{ int age;
printf( "Please enter your age" );
scanf( "%d", &age );
if ( age < 100 ) {
printf ("You are NOT old!\n" );
} else { printf ("You are old!\n" ); } return 0;}
While loopWhile loop
The same as java#include <stdio.h>
int main(){ int x = 0; while ( x < 10 ) { printf("x = %d\n",x); x++; } return 0;}
For loopFor loop
The same as java #include <stdio.h>
int main(){ for (int i = 0;i < 10;i++) {
printf(“i = %d\n",i); } return 0;}
PracticeLab 1 (http://www.nattee.net/files-dae/Algo-Lab1.pdf)
Prob 0,1Lab 2 (http://www.nattee.net/files-dae/Algo-Lab2.pdf)
Prob 0,1hw00e (BMI)
http://www.nattee.net/~dae/algo/prob/hw00b_fibo/problem.pdf
hw00c (drawbox)http://www.nattee.net/~dae/algo/prob/hw00c_drawbox/problem.pdf
hw00d (time after)http://www.nattee.net/~dae/algo/prob/hw00d_timeafter/problem.pdf
Array in C++ (Day 1 Afternoon)(almost) the same as java#include <iostream>
int main(){ int fibo[100]; fibo[0] = 1; fibo[1] = 1; for (int i = 2;i < 100;i++) { fibo[i] = fibo[i-1] + fibo[i-2]; }
printf("%d\n",fibo[99]);
return 0;}
2D Array Example#include <stio.h>int main(){ int x; int y; int array[8][8]; for ( x = 0; x < 8; x++ ) { for ( y = 0; y < 8; y++ ) array[x][y] = x * y; } printf("Array Indices\n");
for ( x = 0; x < 8;x++ ) { for ( y = 0; y < 8; y++ ) printf("[%d][%d] = %d\n",x,y,array[x][y]); printf("\n"); } return 0;}
More practiceLab 2
Prob 2hw00f
http://www.nattee.net/~dae/algo/prob/hw00f_aminmax/problem.pdf
Debugging (Day 2 Morning)Follow guide in Lab 3
(http://www.nattee.net/files-dae/Algo-Lab3.pdf)