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/*
 * Exercise 3-5. Write the function  itob(n,s,b) that converts the integer n 
 * into a base  b character representation in the string  s. In particular,  
 * itob(n,s,16) formats  s as a hexadecimal integer in s.  
 */

#include <stdlib.h>
#include <stdio.h>
#include <limits.h>

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/*
 * Exercise 3-6. Write a version of itoa that accepts three arguments instead 
 * of two. The third argument is a minimum field width; the converted number 
 * must be padded with blanks on the left if necessary to make it wide enough. 
 */
#include <stdio.h>
#include <limits.h>
#define abs(x) ((x) > 0) ? (x) : -(x)

void itoa(int n, char s[], int width);

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/*
 * Exercise 3-1. Our binary search makes two tests inside the loop, when one 
 * would suffice (at the price of more tests outside.) Write a version with 
 * only one test inside the loop and measure the difference in run-time.  
 */

#include <stdio.h>
#include <time.h>
#define MAX_ELEMENT 20000

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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
	android:orientation="vertical" 
        android:layout_width="fill_parent"
	android:layout_height="fill_parent">
	<TextView android:id="@+id/counter"
                android:layout_width="fill_parent"
		android:layout_height="wrap_content" 
                android:text="Count: 0" />
	<LinearLayout android:orientation="horizontal"

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package cn.yo2.aquarium.android.testtimer;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

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// check if gps is enabled
locationManager.isProviderEnabled("gps"); 

// jump to gps setting 
startActivity(new Intent("android.settings.LOCATION_SOURCE_SETTINGS"));

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mParameters.remove("gps-latitude");
mParameters.remove("gps-longitude");
mParameters.remove("gps-altitude");
mParameters.remove("gps-timestamp");
		
mParameters.set("jpeg-quality", 85);
mParameters.set("gps-latitude",  String.valueOf(25.050357818603516));
mParameters.set("gps-longitude", String.valueOf(102.70413208007813));
mParameters.set("gps-altitude",  String.valueOf(1800.0));
mParameters.set("gps-timestamp", String.valueOf(

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mParameters.removeGpsData();

mParameters.setJpegQuality(85);
mParameters.setGpsLongitude(longitude);
mParameters.setGpsLatitude(latitude);
mParameters.setGpsAltitude(altitude);
mParameters.setGpsTimestamp(timestamp);

camera.setParameters(mParameters);
camera.takePicture(null, null, jpegPictureCallback);

shaobin0604

/*
 * Exercise 4-1. Write the function strindex(s,t) which returns the position 
 * of the rightmost occurrence of t in s, or -1 if there is none. 
 */
#include <stdio.h>
#include <string.h>

int strindex(char s[], char t[]);

int main(void)

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/*
 * Exercise 4-2. Extend atof to handle scientific notation of the form
 * 123.45e-6 where a floating-point number may be followed by e or E and an 
 * optionally signed exponent.
 */

#include <stdio.h>
#include <ctype.h>
#define EPSILON 0.000001