Raman Former (Python 3)✅

𝐅𝐞𝐞𝐥𝐢𝐧𝐠 𝐰𝐡𝐞𝐧 𝐲𝐨𝐮 𝐜𝐨𝐦𝐩𝐥𝐞𝐭𝐞𝐝 𝐚𝐥𝐥 𝐭𝐡𝐞 𝐭𝐚𝐬𝐤𝐬 𝐚𝐧𝐝 𝐦𝐚𝐫𝐤 𝐭𝐡𝐞𝐦 ✅, 𝐢𝐭'𝐬 𝐮𝐧𝐦𝐚𝐭𝐜𝐡𝐞𝐝 😊❤️
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// First Unique Character
// TC O(N)
// SP O(N)
int Xexamster(string str)
{
int count = 0;
unordered_map<char, int> mp;
for (int i = 0; i < str.length(); i++)
mp[str[i]]++;
for (auto i : mp)
{
if (i.second == 1)
count++;
}
return count;
}

EV_First Unique Character
Python 3✅

Minimize Array Cost
Python 3 ✅

EV_Minimize Array Cost ✅
(Python 3)

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String Letter Search
Python 3✅

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#use 1st line for permutations
from itertools import permutations

li=[]
ans =[]
re = []
li = list(permutations(input))
for i in li:
s =0
for j in range(len(i)):
op = 2**j
s += i[j]//op
ans.append(s)
for i in input3:
a =0
for j in ans:
if i<=j:
a+= 1
re.append(a)
return(re)

Farmer jhons dilemma ✅
(Python 3)

The Mathematical Expression
IBM