unable to find the runtime error here in sums in triangle

/*

  • To change this template, choose Tools | Templates
  • and open the template in the editor.
    */
    package pract;

/**
*

  • @author dell
    /
    import java.io.
    ;
    import java.util.*;
    class SumInTriangle
    {
    public static void main(String[] args) throws IOException
    {
    Scanner scn=new Scanner(System.in);
    int tcase=scn.nextInt();
    int[] res=new int[tcase];

     for(int k=1;k<=tcase;k++)
     {
         
     
     int rows=scn.nextInt();
     
     
     
     int a[][]=new int[rows][];
     
     for (int i = 0; i < rows; i++) 
     {
         a[i]=new int[i+1];
         for (int j = 0; j < i+1; j++) 
         {
             a[i][j]=scn.nextInt();
             
         }
         
     }
     
     for(int i=rows-2;i>=0;i--)
     {
         for(int j=i;j>=0;j--)
         {
             if(a[i+1][j]>a[i+1][j+1])
                 a[i][j]=a[i+1][j]+a[i][j];
             
             else
                a[i][j]=a[i+1][j+1]+a[i][j]; 
                
             
         }
     }
     
     res[k-1]=a[0][0];
     
     }
     
     for (int i = 0; i < tcase; i++) 
     {
         
     
     System.out.println(res[i]);
     }
    

    }

static class Scanner {
private final InputStream is;
private final byte[] data = new byte[0x2000];
private int next, size;

	public Scanner(InputStream is) {
		this.is = is;
	}
            
            
            
            
            private boolean read() throws IOException {
		size = is.read(data);
		if (size == 0) {
			int i = is.read();
			if (i < 0)
				return false;
			data[0] = (byte) i;
			size = 1;
		} else if (size < 0)
			return false;
		next = 0;
		return true;
	}

public int nextInt() throws IOException {
int r;
do {
if (next >= size && !read())
throw new EOFException();
r = data[next++];
} while (r < ‘0’ || r > ‘9’);
r -= ‘0’;
for (int d; (next < size || read()) && ‘0’ <= (d = data[next++])
&& d <= ‘9’:wink:
r = r * 10 + d - ‘0’;
return r;
}
}
}

you should put a link to your solution instead of the actual code according to the FAQ .

1 Like