Submission #1175657

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Source Code Expand

import java.util.*;

public class Main 
{
    public static void main(String[] args)
    {
        Scanner sc = new Scanner(System.in);
        
        String str = sc.next();
        int num = sc.nextInt();
        int operations[][] = new int[num][2];
        for (int i = 0; i < num; ++i)
        {
            for (int k = 0; k < 2; ++k)
            {
                // for index
                operations[i][k] = sc.nextInt() - 1;
            }
        }
        
        String str_chars[] = str.split("");
        String tmp;
        
        for (int i = 0; i < num; ++i)
        {
            int op_left  = operations[i][0];
            int op_right = operations[i][1];
            while (op_left < op_right)
            {
                tmp = str_chars[op_left];
                str_chars[op_left]  = str_chars[op_right];
                str_chars[op_right] = tmp;
                
                ++op_left; --op_right;
            }
        }
        
        for (int i = 0; i < str_chars.length; ++i)
        {
            System.out.print(str_chars[i]);            
        }
        System.out.println();
    }
}

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