Range Minimize
C++
Codechef Starters 152
https://telegram.me/+Q_kf6B6EFexiNmU9

#include<bits/stdc++.h>
using namespace std;
#define int long long

int32_t main()
{
int t;
cin>>t;

while(t--)
{
int n;
cin>>n;

vector<int>vec(n);
for(int i=0;i<n;i++)
{
cin>>vec[i];
}

sort(vec.begin(),vec.end());

int ans1=vec[n-3]-vec[0];
int ans2=vec[n-1]-vec[2];
int ans3=vec[n-2]-vec[1];

cout<<min(ans1,min(ans2,ans3))<<endl;

}


return 0;
}

Range Minimize
C++
Codechef Starters 152
https://telegram.me/+Q_kf6B6EFexiNmU9

Maximize Hamming Distance
C++
Codechef Starters 152
https://telegram.me/+Q_kf6B6EFexiNmU9

#include <bits/stdc++.h>
using namespace std;
#define int long long

int32_t main() {
int test_cases;
cin >> test_cases;

while (test_cases--) {
int num_rows, num_strings;
cin >> num_rows >> num_strings;

vector<pair<int, pair<int, int>>> data(num_rows);

int result = 0;

while (num_strings--) {
string line;
cin >> line;

int zero_count = 0;
int one_count = 0;
int question_count = 0;

for (int idx = 0; idx < line.size(); idx++) {
if (line[idx] == '0') {
data[idx].first++;
} else if (line[idx] == '1') {
data[idx].second.first++;
} else {
data[idx].second.second++;
}
}
}

for (int idx = 0; idx < num_rows; idx++) {
int zeros = data[idx].first;
int ones = data[idx].second.first;
int questions = data[idx].second.second;

while (questions--) {
if (zeros <= ones) {
zeros++;
} else {
ones++;
}
}

result += (zeros * ones);
}

cout << result << endl;
}

return 0;
}

Maximize Hamming Distance
C++
Codechef Starters 152
https://telegram.me/+Q_kf6B6EFexiNmU9

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1806

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1:2

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Question -
A fighter pilot observes a boy on the ground at an angle of depression of 45°. After flying for some time, the angle of depression changed to 60°. If the fighter plane is flying at a height of 300 m, then find the time (in seconds) for which the fighter plane flew between the two instances of observation. (Speed of fighter plane = 360 km/hr)

Pick ONE option
2 - √3
3 -√3
2
None of these


Answer: 3 - √3

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31%

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Guys, most of the questions are same for everyone as there is a pool of questions.
They are just in random order.

209

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B

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a = 115, b = 9

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60o

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A

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C

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-1

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