added solution

Author: saurabh22111999

CodeChef DSA Learning series Solutions/Easy Problems to get started/Alternative Square Pattern/README.md

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+Alternative Square Pattern Problem Code: SQALPAT
+Add problem to Todo list
+
+You're given a number N. Print the first N lines of the below-given pattern.
+
+1 2 3 4 5
+10 9 8 7 6
+11 12 13 14 15
+20 19 18 17 16
+21 22 23 24 25
+30 29 28 27 26
+Input:
+First-line will contain the number N.
+Output:
+Print the first N lines of the given pattern.
+
+Constraints
+1≤N≤200
+Sample Input 1:
+4
+Sample Output 1:
+1 2 3 4 5
+10 9 8 7 6
+11 12 13 14 15
+20 19 18 17 16
+Sample Input 2:
+2
+Sample Output 2:
+1 2 3 4 5
+10 9 8 7 6
+EXPLANATION:
+In the first example, we'll print the first 4 lines of the given pattern.
+In the second example, we'll print the first 2 lines of the given pattern.

CodeChef DSA Learning series Solutions/Easy Problems to get started/Alternative Square Pattern/Solution.cpp

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+#include <iostream>
+using namespace std;
+
+int main() {
+    int n;
+    cin>>n;
+    int sumi = 0, sumj = 10;
+    for(int i=1; i<=n; i++){
+        if(i%2!=0){
+            for(int j=sumi+1; j<=sumi+5; j++){
+                cout<<j<<" ";
+            }
+            cout<<endl;
+            sumi = sumi + 10;
+        }else{
+            for(int j=sumj; j>=sumj-4; j--){
+                cout<<j<<" ";
+            }
+            cout<<endl;
+            sumj = sumj + 10;
+        }
+    }
+    return 0;
+}