Challenge- Mathematics ( SUMSUMS - summing sums)

I’m getting correct answers for test case but wrong answer on submitting the code.
here is my code

import java.util.*;

import java.io.*;

public class Main {

static int mod = 98765431;
static long[][] multiply(long a[][], long b[][]){
	int row = a.length;
	int col = b[0].length;
	long c[][] = new long[row][col];
	for(int i=0; i<row; i++){
		for(int j=0; j<col; j++){
			for(int k=0; k<row; k++)
			c[i][j] = ( c[i][j]%mod + ( (a[i][k] % mod) * (b[k][j] % mod) )%mod )%mod;
		}
	}
	return c;
}

static long[][] pow(long T[][], long n){
if(n==1)
return T;
long p[][] = multiply(T, T);
if(n%2 == 0)
return pow(p, n/2);
else
return multiply(T,pow(p, n/2));
}

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

	BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
	String nt[] = br.readLine().split(" ");
	int n = Integer.parseInt(nt[0]);
	long t = Long.parseLong(nt[1]);
	long c[][] = new long[n][1];
	for(int i=0; i<n; i++){
		c[i][0] = Long.parseLong(br.readLine());
	}
	long T[][] = new long[n][n];        // creating a coefficient matrix
	for(int i=0; i<n; i++){
		for(int j=0; j<n; j++){
			if(i!=j)                   // except diagonal all other elements are 1
			  T[i][j] = 1;
		}
	}
	T = pow(T, t);           
	T = multiply(T,c);
	for(int i=0; i<n; i++)
	 System.out.println(T[i][0]);



}

}

@rcy5932
Kindly send your code on CB IDE

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