ShaysXIA/CodeInsightBench huggingface dataset:
Problem: 2060D - Subtract Min Sort
Language: java

Solution 1 (runtime: 484 ms):
import java.util.*;
public class Fi {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int t = sc.nextInt();
        for(int o=0;o<t;o++){
            int n = sc.nextInt();
            int result = 1;
            int arr[] = new int[n];
            for(int i=0;i<n;i++){
                arr[i] = sc.nextInt();
                if(i>0 && arr[i-1]>arr[i]){
                    result = 0;
                }else if(i>0 && arr[i-1]<=arr[i]){
                    arr[i] -=arr[i-1];
                    arr[i-1] = 0;
                }
            }
            if(result==0){
                System.out.println("NO");
            }else{
                System.out.println("YES");
            }
          
        }
    }
}
//4
//1 4 3 2

Solution 2 (runtime: 359 ms):




import java.io.*;

import java.util.*;



public class Main{

	static StreamTokenizer cins=new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in)));

	static PrintWriter cout=new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out)));

	static int cin()throws Exception {

		cins.nextToken();

		return (int)cins.nval;

	}

	static void solve() throws Exception{

		int n=cin();

		int a[]=new int[n+1];

		for(int i=1;i<=n;i++) {

			a[i]=cin();

		}

		

		for(int i=1;i+1<=n;i++) {

			int now=Math.min(a[i],a[i+1]);

			a[i]-=now;

			a[i+1]-=now;

			if(a[i]>a[i+1]) {

				cout.println("no");

				cout.flush();

				return;

			}

		}

		cout.println("Yes");

		cout.flush();

	}

	public static void main(String[] args)throws Exception{

		int t=cin();

		while(t--!=0)solve();

	}

}
Problem: 2050D - Digital string maximization
Language: java

Solution 1 (runtime: 296 ms):
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int t = sc.nextInt();
        sc.nextLine(); 
        while (t-- > 0) {
            String s = sc.nextLine();
            char[] arr = s.toCharArray();
            int swapcount = 1;
            int ans = 0;
            while (swapcount != 0) {
                int sw = 0;
                for (int i = 1; i < arr.length; i++) {
                    char a = (char) (arr[i] - 1);
                    char b = arr[i - 1];
                    if ((arr[i] != '1' || arr[i] != '0') && a - b > 0) {
                        if (arr[i] > arr[i - 1]) {
                            swap(i - 1, i, arr);
                            sw++;
                        }
                    }
                }

                if (sw == 0) {
                    break;
                }
            }
            System.out.println(new String(arr));
        }
    }

    public static void swap(int i, int j, char[] arr) {
        arr[j] = (char) (arr[j] - 1);
        char t = arr[i];
        arr[i] = arr[j];
        arr[j] = t;
    }
}


Solution 2 (runtime: 296 ms):


import java.util.*;

import java.io.*;



public class DigitalStringMax {



public static void main(String args[]) throws Exception {

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

PrintWriter pw = new PrintWriter(System.out);



int tt = Integer.parseInt(br.readLine());

while(tt-- > 0) {



char ch[] = br.readLine().toCharArray();



int n = ch.length;

for(int i = 0; i < n - 1; i++){

int max = -1;

int ind = -1;

for(int j = i;j < Math.min(n,i+9); j++){



if(max < (ch[j] - (j - i))){

max = (ch[j] - (j - i));

ind = j;

}



}



ch[ind] = (char)(ch[ind]  - (ind - i ));

for(int j = ind; j > i; j--){

char temp = ch[j];



ch[j] = ch[j-1];

ch[j-1] = temp;



}

}



for(int i = 0; i < n; i++){

pw.print(ch[i]);

}

pw.println();



}

pw.flush();

}

}
Problem: 2063B - Subsequence Update
Language: java

Solution 1 (runtime: 593 ms):
import java.util.*;

public final class F1{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		int t = sc.nextInt();
		while(t-- != 0){
			int n = sc.nextInt();
			int l = sc.nextInt();
			int r = sc.nextInt();
			int[] arr = new int[n];
			int[] left = new int[r];
			int[] right = new int[n-l+1];
			for(int i = 0; i < arr.length; i++){
				arr[i] = sc.nextInt();
			}
			for(int i = 0; i < left.length; i++){
				left[i] = arr[i];
			}
			for(int i = 0; i < right.length; i++){
				right[i] = arr[l-1+i];
			}
			Arrays.sort(left);
			Arrays.sort(right);
			long sum1 = 0;
			long sum2 = 0; 
			for(int i = 0 ; i <= r - l; i++){
				sum1 += (long)left[i];
				sum2 += (long)right[i];
			}
			System.out.println(Math.min(sum1, sum2));
		}
	}		
}

Solution 2 (runtime: 281 ms):
import java.util.*;

import java.io.*;

public class MooCounting {

    public static void main(String[] args) throws IOException{

        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        int t = Integer.parseInt(br.readLine());



        while(t-- > 0)

        {

            StringTokenizer st = new StringTokenizer(br.readLine());

            int n = Integer.parseInt(st.nextToken());

            int left = Integer.parseInt(st.nextToken());

            left--;

            int right = Integer.parseInt(st.nextToken());

            right--;

            long k = (long)right - (long)left + 1;



            st = new StringTokenizer(br.readLine());

            int[] arr = new int[n];

            for(int i = 0; i < n; i++)

            {

                arr[i] = Integer.parseInt(st.nextToken());

            }



            // Case 1: [l, n]

            int[] option1 = Arrays.copyOfRange(arr, left, n);

            Arrays.sort(option1);

            long sum1 = 0;

            for (int i = 0; i < k; i++) sum1 += option1[i];



            // Case 2: [1, r]

            int[] option2 = Arrays.copyOfRange(arr, 0, right + 1);

            Arrays.sort(option2);

            long sum2 = 0;

            for (int i = 0; i < k; i++) sum2 += option2[i];



            

            System.out.println(Math.min(sum1, sum2)); 

        }

    }

}
Problem: 2050D - Digital string maximization
Language: java

Solution 1 (runtime: 186 ms):
import java.util.*;
public class practt {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        String r = sc.nextLine();
        String[] arr = new String[n];
        for(int ifg = 0; ifg < n; ifg++){
            String temp = sc.next();
            int[] tt = new int[temp.length()];
            for(int i = 0; i < temp.length(); i++){
                tt[i] = (int)temp.charAt(i)-'0';
            }
            int fault =  1;
            while(fault!=0){
                int cnt = 0;
                //System.out.println("hi");
                for(int i = 1;i < tt.length;i++){
                    //System.out.println("hii");
                    if(tt[i-1]<(tt[i]-1)){
                        int s = tt[i-1];
                        tt[i-1]=tt[i]-1;
                        tt[i]=s;
                        cnt++;
                    }
                }
                fault=cnt;
            }
            StringBuilder ans = new StringBuilder();
            for(int i=0;i<tt.length;i++){
                ans.append((char)(tt[i]+'0'));
            }
            arr[ifg] = ans.toString();
        }
        for(String a:arr){
            System.out.println(a);
        }

    }
}


Solution 2 (runtime: 281 ms):
import java.io.*;
import java.util.*;

public class DigitalStringMaximization {
    public static void main(String[] args) throws IOException {
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer tokenizer = new StringTokenizer(in.readLine());

        int t = Integer.parseInt(tokenizer.nextToken());

        while (t-- > 0) {
            tokenizer = new StringTokenizer(in.readLine());
            char[] c = tokenizer.nextToken().toCharArray();

            for (int i = c.length - 1; i > 0; i--) {
                if (c[i] > c[i - 1] + 1) {
                    operation(c, i);
                    i += 9;
                    if (i > c.length) {
                        i = c.length;
                    }
                }
            }

            System.out.println(new String(c));
        }
    }

//    public static int findLast(char[] c) {
//        for (int i = c.length - 1; i > 0; i--) {
//            if (c[i] > c[i - 1] + 1) {
//                return i + 1;
//            }
//        }
//        return c.length;
//    }

    public static void operation(char[] c, int i) {
        int cur = c[i];
        int left = c[i - 1];
        c[i - 1] = (char) (cur - 1);
        c[i] = (char) left;
    }
}
Problem: 2062C - Cirno and Operations
Language: java

Solution 1 (runtime: 280 ms):
import java.util.*;
public class Solution{
    static int max=0;
    public static long sumCalc(ArrayList<Long> list){
        long sum=0;
        int i=1;
                
         while(i<list.size()){
            long v=list.get(i)-list.get(i-1);
            list.set(i-1,v);
            sum+=v;
            i++;
        }
        
        list.remove(list.size()-1);
        
        return sum;
    }
    public static void main(String args[]){
        Scanner sc=new Scanner(System.in);
        
        int t=sc.nextInt();
        
        for(int test=0;test<t;test++){
            int n=sc.nextInt();
            ArrayList<Long> list=new ArrayList<>();
           
            long sum=0;
            for(int i=0;i<n;i++){
                long val=sc.nextLong();
                list.add(val);
                sum+=val;
            }
            
            long max=sum;
            while(list.size()>1){
                long ans=sumCalc(list);
                max=Math.max(ans,max);
                sum=0;
                for(int i=0;i<list.size();i++){
                    sum+=(-1)*list.get(i);
                }
                
                max=Math.max(sum,max);
            }
            
            System.out.println(max);
        }
    }
}

Solution 2 (runtime: 296 ms):
import java.util.Scanner;

public class C_Cirno_and_Operations {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int t = sc.nextInt();
        while (t-->0) {
            int n = sc.nextInt();
            long[] arr = new long[n+1];
            for (int i=1; i<=n; i++) {
                arr[i] = sc.nextLong();
            }
            int curr = n;
            long ans = Long.MIN_VALUE;
            for (int i=1; i<=n; i++) {
                long sum = 0;
                for (int j=1; j<=curr; j++) {
                    sum += arr[j];
                }
                if (i==1) {
                    ans = Math.max(ans, sum);
                }
                else ans = Math.max(ans, Math.max(sum,-sum));
                for (int j=1; j<curr; j++) {
                    arr[j] = arr[j+1]-arr[j];
                }
                curr--;
            }
            System.out.println(ans);
        }
        sc.close();
    }
}
Problem: 2050D - Digital string maximization
Language: java

Solution 1 (runtime: 186 ms):
import java.util.*;
public class practt {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        String r = sc.nextLine();
        String[] arr = new String[n];
        for(int ifg = 0; ifg < n; ifg++){
            String temp = sc.next();
            int[] tt = new int[temp.length()];
            for(int i = 0; i < temp.length(); i++){
                tt[i] = (int)temp.charAt(i)-'0';
            }
            int fault =  1;
            while(fault!=0){
                int cnt = 0;
                //System.out.println("hi");
                for(int i = 1;i < tt.length;i++){
                    //System.out.println("hii");
                    if(tt[i-1]<(tt[i]-1)){
                        int s = tt[i-1];
                        tt[i-1]=tt[i]-1;
                        tt[i]=s;
                        cnt++;
                    }
                }
                fault=cnt;
            }
            StringBuilder ans = new StringBuilder();
            for(int i=0;i<tt.length;i++){
                ans.append((char)(tt[i]+'0'));
            }
            arr[ifg] = ans.toString();
        }
        for(String a:arr){
            System.out.println(a);
        }

    }
}


Solution 2 (runtime: 609 ms):
import java.math.*;

import java.util.*;



public class Main {

static int N = (int)2e5 + 5;

static int[] a = new int[N];

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

int T = sc.nextInt();

while(T-- > 0){

String s = sc.next();

int len = s.length();

for(int i = 1;i <= len;i++){

a[i] = (int)s.charAt(i - 1) - (int)'0';

}

for(int i = 1;i <= len;i++){

int x = a[i], idx = i;

int mx = x, id = -1;

for(int j = i + 1;j <= len && j <= i + 8;j++){

if(a[j] - (j - i) > mx){

mx = a[j] - (j - i);

idx = j;

}

}

for(int j = idx - 1;j >= i;j--){

int t = a[j];

a[j] = a[j + 1] - 1;

a[j + 1] = t;

}

}

for(int i = 1;i <= len;i++){

System.out.print(a[i]);

}

System.out.println();

}

sc.close();

}

}
Problem: 2062C - Cirno and Operations
Language: java

Solution 1 (runtime: 311 ms):

import java.util.Scanner;

public class Sol {
    static Scanner rd = new Scanner(System.in);
    public static void main(String[] args) {
        int tt = rd.nextInt();
        while (tt-- > 0) {
            new Solution().solve();
        }
    }

    static class Solution {
        void solve() {
            int n = rd.nextInt();
            long[] a = new long[n];

            for (int i = 0; i < n; i++) {
                a[i] = rd.nextInt();
            }
            int len = n;
            if (len == 1) {
                System.out.println(a[0]);
                return;
            }
            long max = getSum(a, n, false);
            while (len > 1) {
                for (int i = 0; i < len - 1; i++) {
                    a[i] = a[i + 1] - a[i];
                }
                len--;
                max = Math.max(Math.max(getSum(a, len, true), getSum(a, len, false)), max);
            }
            System.out.println(max);
        }

        long getSum(long[] a, int len, boolean neg) {
            long sum = 0;
            for (int i = 0; i < len; i++) {
                if (neg) {
                    sum += (-1) * a[i];
                } else {
                    sum += a[i];
                }
            }
            return sum;
        }
    }
}


Solution 2 (runtime: 264 ms):
import java.util.Scanner;

public class Main
{
    private static void solve(Scanner in)
    {
        int n = in.nextInt();

        long[] a = new long[n];

        for (int i = 0; i < n; i++)
            a[i] = in.nextInt();

        long ans = 0;

        for (long el : a)
            ans += el;

        for (int it = 1; it < n; it++)
        {
            ans = Math.max(ans, Math.abs(a[n - it] - a[0]));

            for (int i = 0; i + it < n; i++)
                a[i] = a[i + 1] - a[i];
        }

        System.out.println(ans);
    }

    public static void main (String[] args)
    {
        Scanner in = new Scanner(System.in);

        int t = in.nextInt();

        for (int test = 0; test < t; test++)
            solve(in);
        
        in.close();
    }
}
Problem: 2060D - Subtract Min Sort
Language: java

Solution 1 (runtime: 656 ms):
import java.util.*;
public class subtractMinSort {
    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        int t=sc.nextInt();
        while(t-->0){

            int n=sc.nextInt();
            int[] arr = new int[n];

            for(int i=0;i<n;i++){
                arr[i]=sc.nextInt();
            }

            boolean flag = true;
            for(int i=0;i<n-1;i++){
                int min = Math.min(arr[i],arr[i+1]);
                arr[i] = arr[i]-min;
                arr[i+1] = arr[i+1]-min;
            }

            for(int i=0;i<n-1;i++){
                if(arr[i]>arr[i+1]){
                    System.out.println("NO");
                    flag = false;
                    break;
                }
            }
            if(flag){
                System.out.println("YES");
            }


        }
    }
}

Solution 2 (runtime: 359 ms):




import java.io.*;

import java.util.*;



public class Main{

	static StreamTokenizer cins=new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in)));

	static PrintWriter cout=new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out)));

	static int cin()throws Exception {

		cins.nextToken();

		return (int)cins.nval;

	}

	static void solve() throws Exception{

		int n=cin();

		int a[]=new int[n+1];

		for(int i=1;i<=n;i++) {

			a[i]=cin();

		}

		

		for(int i=1;i+1<=n;i++) {

			int now=Math.min(a[i],a[i+1]);

			a[i]-=now;

			a[i+1]-=now;

			if(a[i]>a[i+1]) {

				cout.println("no");

				cout.flush();

				return;

			}

		}

		cout.println("Yes");

		cout.flush();

	}

	public static void main(String[] args)throws Exception{

		int t=cin();

		while(t--!=0)solve();

	}

}
Problem: 2060D - Subtract Min Sort
Language: java

Solution 1 (runtime: 499 ms):
import java.util.*;



public class Main {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        int t = sc.nextInt(); // Number of test cases

        

        while (t-- > 0) {

            int n = sc.nextInt(); // Length of sequence

            int[] a = new int[n];

            

            for (int i = 0; i < n; i++) {

                a[i] = sc.nextInt();

            }



            // Simulating the operation

            boolean possible = true;

            for (int i = 0; i < n - 1; i++) {

                int minValue = Math.min(a[i], a[i + 1]);

                a[i] -= minValue;

                a[i + 1] -= minValue;

            }



            // Check if the array is now non-decreasing

            for (int i = 0; i < n - 1; i++) {

                if (a[i] > a[i + 1]) {

                    possible = false;

                    break;

                }

            }



            System.out.println(possible ? "YES" : "NO");

        }



        sc.close();

    }

}



Solution 2 (runtime: 359 ms):
import java.io.*;

import java.math.*;

import java.util.*;



public class Main {

static class IoScanner {

BufferedReader bf;

StringTokenizer st;

BufferedWriter bw;



public IoScanner() {

bf = new BufferedReader(new InputStreamReader(System.in));

st = new StringTokenizer("");

bw = new BufferedWriter(new OutputStreamWriter(System.out));

}



public String nextLine() throws IOException {

return bf.readLine();

}



public String next() throws IOException {

while (!st.hasMoreTokens()) {

st = new StringTokenizer(bf.readLine());

}

return st.nextToken();

}



public char nextChar() throws IOException {

return next().charAt(0);

}



public int nextInt() throws IOException {

return Integer.parseInt(next());

}



public long nextLong() throws IOException {

return Long.parseLong(next());

}



public double nextDouble() throws IOException {

return Double.parseDouble(next());

}



public float nextFloat() throws IOException {

return Float.parseFloat(next());

}



public BigInteger nextBigInteger() throws IOException {

return new BigInteger(next());

}



public BigDecimal nextDecimal() throws IOException {

return new BigDecimal(next());

}

}

static IoScanner sc = new IoScanner();

static PrintWriter out = new PrintWriter(System.out);

static final int mod=(int) (1e9+7);

public static void main(String[] args) throws Exception {

int T = 1;

T = sc.nextInt();

while (T-- > 0) {

solve();

}

out.flush();

}

static void solve() throws IOException {

int n=sc.nextInt();

int[] arr = new int[n];

for(int i=0;i<n;i++){

arr[i]=sc.nextInt();

}

for (int i = 1; i < n; i++) {

if (arr[i - 1] > arr[i]) {

out.println("NO");

return;

}else {

arr[i] -= arr[i - 1];

arr[i-1]=0;

}

}

out.println("YES");

}

}
Problem: 2057C - Trip to the Olympiad
Language: java

Solution 1 (runtime: 234 ms):
import java.util.*;

public class C{
    public static boolean powerOf2(int n){
        if(n==1) return false;
        int a = 1;
        while(a<n) a = a*2;
        if(a==n) return true;
        return false;
    }
    public static void main(String...args){
        Scanner sc = new Scanner(System.in);

        int t = sc.nextInt();
        while(t>0){
            t--;

            int l = sc.nextInt();
            int r = sc.nextInt();

            int mid = 0;
            boolean smallerThanr = false, greaterThanl = false;

            int start = 30;
            int i = start;
            while(i>=0){
                int lbit = (((1<<i)&l)>>i);
                int rbit = (((1<<i)&r)>>i);
                if(lbit != rbit) break;
                mid += (lbit<<i);
                i--;
            }
            // System.out.println(mid);

            start = i;
            for(i=start; i>=0; i--){
                int lbit = (((1<<i)&l)>>i);
                int rbit = (((1<<i)&r)>>i);
                int mBit = 0;

                if(lbit==1 || rbit==1) mBit=0;
                else mBit = 1;
                mid += (mBit<<i);
            }
            // System.out.println(mid);

            
            i = start;
            while(i>=0 && mid <= l){
                int mBit = (((1<<i)&mid)>>i);
                // System.out.println(i + " " + mBit + " " + mid);
                if(mBit==0 && ((mid + (1<<i)) < r)){
                    mid += (1<<i);
                }
                i--;
            }
            System.out.println(l + " " + mid + " " + r);
        }
    }
}

Solution 2 (runtime: 234 ms):
import java.util.*;
public class C_Trip_to_the_Olympiad {

    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int t=sc.nextInt();
        while(t-->0){
            long l=sc.nextLong();
            long r=sc.nextLong();
            long a=0;
            long b=0;
            long c=0;
            long ans=0;
            for(int i=30;i>=0;i--){
                long x=(l&(1L<<i))!=0?1:0;
                long y=(r&(1L<<i))!=0?1:0;
                if(x==y){
                    ans+=x*(1L<<i);
                }else{
                    a=ans+(1L<<i);
                    b=a-1;
                    break;
                }
            }
            for(long i=l;i<=r;i++){
                if(a!=i&&b!=i){
                    c=i;
                    break;
                }
            }
            System.out.println(a+" "+b+" "+c);
        }
    }
}