diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,2 +1,23 @@
 # kotlin-heroes-solutions
 Solutions to Codeforces' Kotlin Heroes Contests
+
+___
+
+
+### Practice Rounds
+
+|Contest|Problems|Solutions|
+|:-:|:-:|:-:|
+| Practice-1 | [Link](https://codeforces.com/contest/1171) | [NA]() |
+| Practice-2 | [Link](https://codeforces.com/contest/1212) | [NA]() |
+| Practice-3 | [Link](https://codeforces.com/contest/1298) | [NA]() |
+| Practice-4 | [Link](https://codeforces.com/contest/1347) | [NA]() |
+| Practice-5 | [Link](https://codeforces.com/contest/1432) | [NA]() |
+| Practice-6 | [Link](https://codeforces.com/contest/1489) | [NA]() |
+| Practice-7 | [Link](https://codeforces.com/contest/1532) | [Link](./practice-7/) |
+
+</br>
+
+___
+> Pull Requests are welcome, thank you! :)
+___
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diff --git a/practice-7/README.md b/practice-7/README.md
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+# kotlin-heroes-solutions/practice-7/ 
+Solutions to [Kotlin Heroes: Practice 1](https://codeforces.com/contest/1171)
+
+___
+
+### Problems
+
+|#|Problem Statement|Solution|
+|:-:|:-:|:-:|
+| A | [Link](https://codeforces.com/contest/1532/problem/A) | [Link](./a.kt) |
+| B | [Link](https://codeforces.com/contest/1532/problem/B) | [Link](./b.kt) |
+| C | [Link](https://codeforces.com/contest/1532/problem/C) | [Link](./c.kt) |
+| D | [Link](https://codeforces.com/contest/1532/problem/D) | [Link](./d.kt) |
+| E | [Link](https://codeforces.com/contest/1532/problem/E) | [Link](./e.kt) |
+
+</br>
+
+___
+> Pull Requests are welcome, thank you! :)
+___
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diff --git a/practice-7/a.kt b/practice-7/a.kt
new file mode 100644
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--- /dev/null
+++ b/practice-7/a.kt
@@ -0,0 +1,12 @@
+
+import java.util.Scanner
+fun main(){
+    val read=Scanner(System.`in`)
+    var t=read.nextInt()
+    while(t>0){
+        var a:Int = read.nextInt()
+        var b:Int = read.nextInt()
+        println(a + b)
+        t=t-1
+    }
+}
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diff --git a/practice-7/b.kt b/practice-7/b.kt
new file mode 100644
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+++ b/practice-7/b.kt
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+import java.util.Scanner
+fun main(){
+    val read = Scanner(System.`in`)
+    var t=read.nextLong()
+    while(t>0){
+        var a:Long = read.nextLong()
+        var b:Long = read.nextLong()
+        var k:Long = read.nextLong()
+        var ans:Long = 0
+        if((k%2)==1L){
+            ans=ans+a*((k+1)/2)
+            ans=ans-b*((k-1)/2)
+        }
+        else{
+            ans=ans+a*(k/2)
+            ans=ans-b*(k/2)
+        }
+        println(ans)
+        t=t-1
+    }
+}
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diff --git a/practice-7/c.kt b/practice-7/c.kt
new file mode 100644
index 0000000..4d55317
--- /dev/null
+++ b/practice-7/c.kt
@@ -0,0 +1,25 @@
+
+import java.util.Scanner
+fun main(){
+    val read = Scanner(System.`in`)
+    var t=read.nextLong()
+    while(t>0){
+        var n:Int = read.nextInt()
+        var k:Int = read.nextInt()
+        var s:String = ""
+        var cnt:Int = n/k
+        for(i in 1..cnt){
+            for(j in 1..k){
+                var m:Char = 'a'-1+j
+                s+=m
+            }
+        }
+        cnt=n%k
+        for(i in 1..cnt){
+        	var m:Char = 'a'-1+i
+        	s+=m
+        }
+        println(s)
+        t=t-1
+    }
+}
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diff --git a/practice-7/d.kt b/practice-7/d.kt
new file mode 100644
index 0000000..cff1b36
--- /dev/null
+++ b/practice-7/d.kt
@@ -0,0 +1,23 @@
+
+import java.util.*
+fun main(){
+    val read = Scanner(System.`in`)
+    var t=1
+    while(t>0){
+        var n:Int = read.nextInt()
+        var skills = Vector<Int>()
+        for(i in 1..n){
+            var ins:Int = read.nextInt()
+            skills.add(ins)
+        }
+        skills.sort()
+        var ans:Int = 0
+        var i:Int = 0
+        while(i<n){
+            ans+=(skills[i+1]-skills[i])
+            i=i+2
+        }
+        println(ans)
+        t=t-1
+    }
+}
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diff --git a/practice-7/e.kt b/practice-7/e.kt
new file mode 100644
index 0000000..c5427c0
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+++ b/practice-7/e.kt
@@ -0,0 +1,51 @@
+
+import java.util.*
+fun main(){
+    val read = Scanner(System.`in`)
+    //var t=read.nextLong()
+    var t=1
+    while(t>0){
+        var n:Int = read.nextInt()
+        var v = Vector<Int>()
+        var sum:Long = 0L
+        var greatest:Int = 0
+        var gind:Int = 0
+        var sg:Int = 0
+        var sgind:Int = 0
+        var ans = Vector<Int>()
+        for(i in 0..n-1){
+            var ins:Int = read.nextInt()
+            v.add(ins)
+            if(ins>=greatest){
+                greatest=ins
+                gind=i
+            }
+            sum=sum+(ins.toLong())
+        }
+        for(i in 0..n-1){
+            if(i!=gind){
+                if(v[i]>sg){
+                    sg=v[i]
+                    sgind=i
+                }
+            }
+        }
+        sum=sum-(greatest.toLong());
+        if((sum-(sg.toLong()))==(sg.toLong())){
+            ans.add(gind)
+        }
+        for(i in 0..n-1){
+            if(i!=gind){
+                if((sum-(v[i].toLong()))==(greatest.toLong())){
+                    ans.add(i)
+                }
+            }
+        }
+        println(ans.size)
+        for(i in ans){
+            print(i+1)
+            print(" ")
+        }
+        t=t-1
+    }
+}
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