Only test case 3 is working

#1
#2

@deepgarg46 as Mentioned in the question you have to give answer in the form of (ans%10^9+7). So everytime you are changing your and variable then use this operation and use long variable for storing answer since it can be ver large.

#3
#4

i did change but again same error

#5

@deepgarg46 As mentioned in previous reply you need to modulo it everytime you update in the loop and you have to use LONG variable.

#6

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#7

i try to much but did not clear how to take ans in for loop

#8

@deepgarg46 Fully corrected code :

import java.util.*;
public class Main {
    public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int r = sc.nextInt();
		long l = (long)(Math.pow(10,9)+7);
		for (int i = 0; i <r; i++) {
			int m = sc.nextInt();
			int n = sc.nextInt();
			long[] dp = new long[m + 1];
			for (int j = 1; j <= m; j++) {
				if (j < n) {
					dp[j] = 1;

				} else if (j == n) {
					dp[j] = 2;
				} else {
					dp[j] = dp[j- 1] + dp[j- n];
				}
				dp[j] %= l;
			}
			System.out.println(dp[m]);

		}

	}

}