Update and rename solution1.cpp to Solution1.cpp

Author: devanshuwebd

Problems/Data-structures/Day-09/sol/Devanshu/Solution1.cpp

@@ -0,0 +1,33 @@
+Approach: Simply store the value in the array, mae if-else statements and filter the values.
+Time Complexity: O(nq)
+Code:​
+#include <bits/stdc++.h>
+using namespace std;
+int main(){
+    int n;
+    int q;
+    cin>>n>>q;
+    int p[n];
+    for(int i=0;i<n;i++){
+        cin>>p[i];
+    }
+    for(int i=0;i<q;i++){
+        char c;
+        cin>>c;
+        if(c=='!'){
+            int k, x;
+            cin>>k>>x;
+            p[k-1]=x;
+        }
+        else if(c=='?'){
+            int a,b,count=0;
+            cin>>a>>b;
+            for(int i=0;i<n;i++){
+                if(p[i]>=a && p[i]<=b){
+                    count++;
+                }
+            }
+            cout<<count<<endl;
+        }
+    }
+}