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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

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

Winning World Finals C++ Codechef Starters 152 https://telegram.me/+Q_kf6B6EFexiNmU9 #include <iostream> using namespace std; int main() { // your code goes here int t; cin >> t; while(t--) { int m, p; cin >> m >> p; int ans = 0; @PLACEMENTLELO while(m < 299 && m+p+20*ans < 1000) { ++m; ++ans; } if(m+p+20*ans <= 1000) cout << ans << endl; else cout << ans-1 << endl; } return 0; } Winning World Finals C++ Codechef Starters 152 https://telegram.me/+Q_kf6B6EFexiNmU9

Maximize Hamming Distance Java Codechef Starters 152 https://telegram.me/+Q_kf6B6EFexiNmU9 import java.util.*; import java.io.*; public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringBuilder sb = new StringBuilder(); int T = Integer.parseInt(br.readLine()); while (T-- > 0) { String[] nm = br.readLine().split(" "); int N = Integer.parseInt(nm[0]); int M = Integer.parseInt(nm[1]); char[][] strings = new char[M][N]; for (int i = 0; i < M; i++) { strings[i] = br.readLine().toCharArray(); } for (int i = 0; i < N; i++) { int count0 = 0; int count1 = 0; for (int j = 0; j < M; j++) { if (strings[j][i] == '0') count0++; else if (strings[j][i] == '1') count1++; } // Replace '?' optimally for (int j = 0; j < M; j++) { if (strings[j][i] == '?') { if (count0 >= count1) { strings[j][i] = '1'; count1++; } else { strings[j][i] = '0'; count0++; } } } } long totalHammingDistance = 0; for (int i = 0; i < M; i++) { for (int j = i + 1; j < M; j++) { totalHammingDistance += hammingDistance(strings[i], strings[j]); } } sb.append(totalHammingDistance).append("\n"); } System.out.print(sb.toString()); } private static int hammingDistance(char[] s1, char[] s2) { int distance = 0; for (int i = 0; i < s1.length; i++) { if (s1[i] != s2[i]) { distance++; } } return distance; } } Maximize Hamming Distance Java 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

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

Winning World Finals C++ Codechef Starters 152 https://telegram.me/+Q_kf6B6EFexiNmU9 #include <iostream> using namespace std; int main() { // your code goes here int t; cin >> t; while(t--) { int m, p; cin >> m >> p; int ans = 0; @PLACEMENTLELO while(m < 299 && m+p+20*ans < 1000) { ++m; ++ans; } if(m+p+20*ans <= 1000) cout << ans << endl; else cout << ans-1 << endl; } return 0; } Winning World Finals C++ Codechef Starters 152 https://telegram.me/+Q_kf6B6EFexiNmU9

Maximize Hamming Distance Java Codechef Starters 152 https://telegram.me/+Q_kf6B6EFexiNmU9 import java.util.*; import java.io.*; public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringBuilder sb = new StringBuilder(); int T = Integer.parseInt(br.readLine()); // Number of test cases while (T-- > 0) { String[] nm = br.readLine().split(" "); int N = Integer.parseInt(nm[0]); // Length of strings int M = Integer.parseInt(nm[1]); // Number of strings char[][] strings = new char[M][N]; for (int i = 0; i < M; i++) { strings[i] = br.readLine().toCharArray(); } for (int i = 0; i < N; i++) { int count0 = 0; int count1 = 0; for (int j = 0; j < M; j++) { if (strings[j][i] == '0') count0++; else if (strings[j][i] == '1') count1++; } // Replace '?' optimally for (int j = 0; j < M; j++) { if (strings[j][i] == '?') { if (count0 >= count1) { strings[j][i] = '1'; // Make strings more diverse count1++; } else { strings[j][i] = '0'; count0++; } } } } long totalHammingDistance = 0; for (int i = 0; i < M; i++) { for (int j = i + 1; j < M; j++) { totalHammingDistance += hammingDistance(strings[i], strings[j]); } } sb.append(totalHammingDistance).append("\n"); } System.out.print(sb.toString()); } private static int hammingDistance(char[] s1, char[] s2) { int distance = 0; for (int i = 0; i < s1.length; i++) { if (s1[i] != s2[i]) { distance++; } } return distance; } } Maximize Hamming Distance Java Codechef Starters 152 https://telegram.me/+Q_kf6B6EFexiNmU9

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