This commit is contained in:
Claudio Maggioni 2023-04-02 15:53:56 +02:00
parent 75448022dd
commit 59be76cf17
4 changed files with 208 additions and 0 deletions

1
.gitignore vendored
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artist.txt artist.txt
.idea/ .idea/
target/ target/
*.iml

134
SQ-2021-H6/pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.usi.sq</groupId>
<artifactId>SQ-2021-H6</artifactId>
<version>1.0</version>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<junit.platform.version>1.7.0-M1</junit.platform.version>
<junit.jupiter.version>5.6.2</junit.jupiter.version>
<junit.vintage.version>5.6.2</junit.vintage.version>
<junit.version>4.13.1</junit.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>3.0.0-M5</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>8</source>
<target>8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.8.5</version>
<executions>
<execution>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<!-- attached to Maven test phase -->
<execution>
<id>report</id>
<phase>test</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.pitest</groupId>
<artifactId>pitest-maven</artifactId>
<version>1.5.2</version>
<configuration>
<targetClasses>
<param>org.usi.sq.util*</param>
</targetClasses>
<targetTests>
<param>org.usi.sq.util*</param>
<param>*</param>
</targetTests>
</configuration>
<dependencies>
<dependency>
<groupId>org.pitest</groupId>
<artifactId>pitest-junit5-plugin</artifactId>
<version>0.12</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>${junit.jupiter.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>${junit.jupiter.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<version>${junit.vintage.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<reporting>
<plugins>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<reportSets>
<reportSet>
<reports>
<!-- select non-aggregate reports -->
<report>report</report>
</reports>
</reportSet>
</reportSets>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-report-plugin</artifactId>
<version>3.0.0-M5</version>
<configuration>
<!-- place configuration here if required-->
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jxr-plugin</artifactId>
<version>2.1</version>
</plugin>
</plugins>
</reporting>
</project>

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package org.usi.sq.util;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class CollectionUtils {
private static final double EPSILON = 1e-6;
/**
* Implementation of insertion sort. Insertion sort can be used in cases
* where the input list is almost sorted or small. The list implementation
* should provide fast indexed access. Due to its quadratic worst-case
* runtime complexity, other sorting algorithms should be used in the
* general case.
*
* @param list the list to be sorted in-place
* @param <T> the type of the elements in the list (need to be comparable)
* @throws IllegalArgumentException if called with null pointer
*/
static <T extends Comparable<T>> void sort(List<T> list){
if(list == null)
throw new IllegalArgumentException("Sort must not be called with " +
"null");
for(int i = 1; i < list.size(); i++){
T key = list.get(i);
int j = 0;
for(j = i-1; j >= 0; j--){
T elem = list.get(j);
if(elem.compareTo(key) > 0){ // check if elem > key
list.set(j+1, elem);
} else{
break;
}
}
list.set(j+1,key);
}
}
}

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package org.usi.sq.util;
import org.junit.jupiter.api.Test;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import static org.junit.jupiter.api.Assertions.assertEquals;
class CollectionUtilsTest {
private static <T extends Comparable<T>> void checkSort(List<T> source, List<T> expected) {
List<T> target = new ArrayList<>(source);
CollectionUtils.sort(target);
assertEquals(expected, target);
}
private static <T> List<T> list(T... elements) {
return Arrays.asList(elements);
}
private static <T> ArrayList<T> empty() {
return new ArrayList<T>();
}
@Test
public void checkSorted() {
checkSort(empty(), empty());
checkSort(list(0, 1, 2, 3, 4), list(0, 1, 2, 3, 4));
checkSort(list(8, 4, 5, 6, 7), list(4, 5, 6, 7, 8));
}
}