diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..13566b8
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/First-Assignment-WarmUp.iml b/.idea/First-Assignment-WarmUp.iml
new file mode 100644
index 0000000..d6ebd48
--- /dev/null
+++ b/.idea/First-Assignment-WarmUp.iml
@@ -0,0 +1,9 @@
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/compiler.xml b/.idea/compiler.xml
new file mode 100644
index 0000000..255d526
--- /dev/null
+++ b/.idea/compiler.xml
@@ -0,0 +1,13 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/encodings.xml b/.idea/encodings.xml
new file mode 100644
index 0000000..1c7462a
--- /dev/null
+++ b/.idea/encodings.xml
@@ -0,0 +1,7 @@
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/jarRepositories.xml b/.idea/jarRepositories.xml
new file mode 100644
index 0000000..712ab9d
--- /dev/null
+++ b/.idea/jarRepositories.xml
@@ -0,0 +1,20 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/material_theme_project_new.xml b/.idea/material_theme_project_new.xml
new file mode 100644
index 0000000..dc06877
--- /dev/null
+++ b/.idea/material_theme_project_new.xml
@@ -0,0 +1,12 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..0f8081f
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,14 @@
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..ca611f1
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/AP1403 - WarmUp/src/main/java/Exercises.java b/AP1403 - WarmUp/src/main/java/Exercises.java
index 923d44a..5ab02a8 100644
--- a/AP1403 - WarmUp/src/main/java/Exercises.java
+++ b/AP1403 - WarmUp/src/main/java/Exercises.java
@@ -4,8 +4,13 @@ public class Exercises {
complete this function to check if the input number is prime or not
*/
public boolean isPrime(long n) {
- // todo
- return false;
+ if (n <= 1)
+ return false;
+ for (int i = 2; i <= (n / 2) ; i++) {
+ if (n % i == 0) {
+ return false; }
+ }
+ return true;
}
/*
@@ -15,7 +20,18 @@ public boolean isPrime(long n) {
if the input is not a fibonacci number with description above, return -1
*/
public long fibonacciIndex(long n) {
- // todo
+ if (n== 0) return 0;
+ if (n == 1) return 1;
+ int a = 0 , b = 1 , c = 1;
+ int res = 1;
+ while (c < n ) {
+ c = a + b;
+ res++;
+ a = b;
+ b = c;
+ }
+ if (c == n) return res;
+
return -1;
}
@@ -38,8 +54,25 @@ public long fibonacciIndex(long n) {
the output has to be a two-dimensional array of characters, so don't just print the triangle!
*/
public char[][] generateTriangle(int n) {
- // todo
- return null;
+ if (n == 0) {
+ return new char[0][0];
+ }
+
+ char[][] triangle = new char[n][];
+
+ for (int i = 0; i < n; i++) {
+ triangle[i] = new char[i + 1];
+
+ for (int j = 0; j <= i; j++) {
+ if (j == 0 || j == i || i == n - 1) {
+ triangle[i][j] = '*';
+ } else {
+ triangle[i][j] = ' ';
+ }
+ }
+ }
+
+ return triangle;
}
public static void main(String[] args) {