lEEt code easy probs :)

ChandraKiran/22-1-22/palindrome.js

@@ -0,0 +1,9 @@
+var isPalindrome = function(x) {
+    x = x.toString();
+    y = x
+    for(let i = y.length-1;i>=0;i--){
+        if(y[i]!==x[y.length-1-i]){return false;}
+    }
+    return true;
+
+};

ChandraKiran/22-1-22/romanToInt.js

@@ -0,0 +1,28 @@
+var romanToInt = function(s) {
+    const roman = {'I':1,'V':5,'X':10,'L':50,'C':100,'D':500,'M':1000}
+    let integer = 0
+    for(let i =0;i<s.length;i++) {
+    if(s[i] === 'M') { integer += roman.M}
+    else if(s[i] === 'D'){integer += roman.D}
+    else if(s[i] === 'C'){
+        if(s[i+1]==='D'){integer +=roman.D - roman.C;i+=1}
+        else if(s[i+1] == 'M'){integer +=roman.M - roman.C ; i+=1}
+        else{integer += roman.C ;}
+    }
+    else if(s[i] === 'L'){integer += roman.L;}
+    else if(s[i] == 'X'){
+        if(s[i+1]==='C'){integer +=roman.C - roman.X;  i+=1}
+        else if(s[i+1] == 'L'){integer +=roman.L - roman.X ; i+=1}
+        else{integer += roman.X;}
+    }
+    else if(s[i] === 'V'){integer += roman.V;}
+    else{
+        if(s[i+1] === 'X'){integer+= roman.X - roman.I;i+=1}
+        else if(s[i+1] === 'V'){integer += roman.V - roman.I;i+=1}
+        else{integer += roman.I;}
+    }
+    }
+    return integer;
+};
+x = romanToInt('MCMXCIV')
+console.log(x)

ChandraKiran/22-1-22/twoSum.js

@@ -0,0 +1,10 @@
+var twoSum = function(nums, target) {
+    for(let i=0;i < nums.length;i++){
+        for(let j = i+1;j<nums.length;j++){
+            if(nums[j] === target - nums[i]){
+                return([i,j])
+            }
+        }
+    }
+
+};

ChandraKiran/23-1-22/ArrangingCoins.js

@@ -0,0 +1,12 @@
+var arrangeCoins = function(n){
+    let count = 0
+    let x = n
+    for(let i = 1;i<=x;i++){
+        if(i>n){
+            return count
+        }
+        count += 1
+        n -= i
+    }
+    return count
+}