solved 17_PatternChallenge

Author: kotAPI

Pattern Algorithms/17_PatternChallenge.cpp

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+
+/*******************************************************************************************************
+/* ___ _ _ _ _ 
+/* / _ \ | | (_)| | | | 
+/* / /_\ \__ __ ___ | | __ _ ___ _ __ _ | |_ | |__ _ __ ___ ___ 
+/* | _ |\ \ /\ / / / _ \| | / _` | / _ \ | '__|| || __|| '_ \ | '_ ` _ \ / __| 
+/* | | | | \ V V / | __/| || (_| || (_) || | | || |_ | | | || | | | | |\__ \ 
+/* \_| |_/ \_/\_/ \___||_| \__, | \___/ |_| |_| \__||_| |_||_| |_| |_||___/ 
+/* __/ |
+/* |___/ 
+/******************************************************************************************************/
+
+/***********************************
+/* 17_PatternChallenge
+/***********************************/
+
+// Library imports
+#include <iostream>
+using namespace std;
+
+//Prototypes for the algorithms
+void printPattern_17(int);
+
+int main(){
+// user input
+int userInput;
+
+cout<<"Enter number of lines."<<endl;
+cin>>userInput;
+
+printPattern_17(userInput);
+return 0;
+}
+
+/**********************************************************
+/* <printPattern_17>
+/*
+/* @description : Algorithm to print alternating increasing and decreasing * lines.
+/* @param : Integer<input>
+/* @return : None, void
+/* @complexity : O(n)
+/* @explanation : Algortihm that takes input from the user and prints increasing and decreasing star lines in alternate
+/* lines. The outer loop iterates 'input' number of times. The first inner loop takes care of decreasing
+/* the star lines. The second innner loop takes care of increasing the star lines. These execute alternatingly
+/* one after another in every outer loop iteration. 
+/* @author : Pranay Kothapalli @kotAPI
+/**********************************************************/
+void printPattern_17(int input){
+
+// Outer 
+for(int i=0;i<input;i++){
+
+//Inner loop to print the decreasing star lines depending on value of 'i'
+for(int k=0;k<i;k++){
+cout<<"*";
+}
+// Inner loop to print the increasing star lines depending on 'input-i'.
+cout<<endl;
+for(int j=0;j<input-i;j++){
+cout<< "*";
+}
+
+// Add a newline once the inner loops have finished executing.
+cout<<endl;
+}
+
+}